Relevant bibliographies by topics / Potentiometer

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  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers
  6. Reports

Academic literature on the topic 'Potentiometer'

Author: Grafiati
Published: 4 June 2021
Last updated: 30 January 2023

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Journal articles on the topic "Potentiometer"

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Ahyo, Tur. "DIGITAL TONE CONTROL MENGGUNAKAN MIKROKONTROLLER 8-BIT." JTT (Jurnal Teknologi Terpadu) 7, no. 1 (April 26, 2019): 58–61. http://dx.doi.org/10.32487/jtt.v7i1.632.

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AbstractThe quality of the audio sound system that is generated depends on the tone control. Good audio tone control signal output produces an audio signal that approaches the input audio signal. Tone controls are generally used on audio sound system devices using potentiometers as regulating devices. Potentiometers are done in charcoal powder which has varying and linear barriers. Problems that often arise in potentiometers in the form of quick wear due to frequent friction, the output of the tone control will produce a noise when the relationship between the powder charcoal and the sweeping lever is not well connected, and linearity will change if the potentiometer is dirty due to dust. Microcontroller is electronic equipment that can be programmed according to user need. With a collaboration push button, Multiplexer and Analog to digital converter (ADC), can be utilized instead of a potentiometer. Setting the potentiometer is done by pressing the digital control tune up / down button. Based on the testing of the tone control on the volume setting, the input signal has strengthened 6.02 dB. In the bass setting, a signal with a frequency of 100-1 khz is passed, while the frequency of 2.5 khz is muted. In the treble setting, the frequency passed is 2.5 khz to 16 khz.
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Büttner, Christin, Thomas L. Milani, and Freddy Sichting. "Integrating a Potentiometer into a Knee Brace Shows High Potential for Continuous Knee Motion Monitoring." Sensors 21, no. 6 (March 19, 2021): 2150. http://dx.doi.org/10.3390/s21062150.

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Continuous monitoring of knee motion can provide deep insights into patients’ rehabilitation status after knee injury and help to better identify their individual therapeutic needs. Potentiometers have been identified as one possible sensor type for continuous monitoring of knee motion. However, to verify their use in monitoring real-life environments, further research is needed. We aimed to validate a potentiometer-embedded knee brace to measure sagittal knee kinematics during various daily activities, as well as to assess its potential to continuously monitor knee motion. To this end, the sagittal knee motion of 32 healthy subjects was recorded simultaneously by an instrumented knee brace and an optoelectronic reference system during activities of daily living to assess the agreement between these two measurement systems. To evaluate the potentiometer’s behavior during continuous monitoring, knee motion was continuously recorded in a subgroup (n = 9) who wore the knee brace over the course of a day. Our results show a strong agreement between the instrumented knee brace and reference system across all investigated activities as well as stable sensor behavior during continuous tracking. The presented potentiometer-based sensor system demonstrates strong potential as a device for measuring sagittal knee motion during daily activities as well as for continuous knee motion monitoring.
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Mohd Shah, Hairol Nizam, Mohd Fairus Abdollah, Zalina Kamis, Mohd Shahrieel Mohd Aras, Mohd Shahrieel Mohd Aras, Mohd Rizuan Baharon, Mohd Rizuan Baharon, Muhammad Zakwan Akmal Sallehoddin, and Muhammad Zakwan Akmal Sallehoddin. "Develop and implementation of PC based controller for humanoid robot using digital potentiometer." Indonesian Journal of Electrical Engineering and Computer Science 15, no. 1 (July 1, 2019): 104. http://dx.doi.org/10.11591/ijeecs.v15.i1.pp104-112.

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This paper introduced to develop and implementation of PC based controller for humanoid robot using digital potentiometer. The main objective in this paper is to develop and implement the joystick controller by using a digital potentiometer circuit board that be able to control the humanoid robot movement. The Arduino board and digital potentiometer will be integrated by connecting both pins in between wiper, W pin and ground, GND to the DB9 pins of remote control platform, which is TX and RX pins respectively. Humanoid robot as known as TOMY i-SOBOT is used as a preferred model due to wide usage in many applications. A digital potentiometer will be transmitted the voltage and current value depend on the digital level through serial communication to give the instruction for humanoid robot movement. The humanoid movement based on Guided User Interface (GUI) where the user give a commands by pressing the button on the GUI such as turn left, right, forward, and reverse. The results show that the humanoid movement able to control based on the voltage and current in a digital potentiometers value.
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Marković, Ivo, Milka Potrebić, and Dejan Tošić. "Memristors as Candidates for Replacing Digital Potentiometers in Electric Circuits." Electronics 10, no. 2 (January 15, 2021): 181. http://dx.doi.org/10.3390/electronics10020181.

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Digital potentiometers are substantial components for the design of many mixed-signal electronic circuits and systems. Their capability to program resistance value almost instantly provides hardware designers an additional level of freedom. Unfortunately, this feature is limited to DC and lower frequencies, due to parasitic effects. Nowadays, memristors as continuously tunable resistors are becoming candidates for potentiometer successors. Memristors are two-terminal non-volatile devices which have less significant parasitic effects and a wide resistance range. The memristance value can be changed on the fly. Using nanotechnology, memristor implementation has a nanoscale footprint with nanosecond transition between resistive states. In this paper, we present a comparison between the frequency characteristics of digital potentiometers and the only commercially available memristors. Memristor parasitic effects dominate at higher frequencies which extends the bandwidth. In order to present the advantages of memristive circuits, we have analyzed and implemented tunable circuits such as a voltage divider, an inverting amplifier, a high-pass filter, and a phase shifter. A commercially available memristor by KnowM Inc. is used for this purpose. Experimental results obtained by the measurements verify that a memristor has equal or better characteristics than a digital potentiometer. Memristive realizations of voltage dividers and inverting amplifiers have a wider bandwidth, while filters and phase shifters with a memristor have almost identical frequency characteristics as the corresponding realizations with a digital potentiometer.
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Song, Jie, Peng Si, Hongliang Hua, and Ming Qiu. "Research on the Inherent Nonlinearity Calibration of the Potentiometer of a Miniature Linear Series Elastic Actuator." Actuators 11, no. 8 (July 27, 2022): 207. http://dx.doi.org/10.3390/act11080207.

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This paper presents a miniature Linear Series Elastic Actuator (LSEA), in which two low-cost linear potentiometers were adopted to achieve a compact design. To improve the measurement accuracy of the linear potentiometer, a novel Bezier-based Calibration Method (BCM) and its optimization method were proposed to calibrate the inherent nonlinearity of the linear potentiometer. Calibration efficiency of the BCM was investigated numerically by making a comparison with the widely used Polynomial Calibration method (PCM), and the effect of the BCM calibration on the control performance of the LSEA was investigated experimentally by displacement and force control. Results reveal that the BCM exhibits an excellent local calibration ability for the nonlinearity with knee points. Due to the above characteristic, the BCM could produce a better calibration accuracy than the PCM under the same model order and improve the control performance of the LSEA. In addition, the BCM could calibrate the inherent nonlinearity of the potentiometer in a continuous form rather than that of piecewise ones. The continuous calibration form could bring more convenience to practical applications.
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Nowak, S., and B. Herod. "The Influence of Lubrication on Electrical and Mechanical Parameters of Potentiometer Resistive Element." Active and Passive Electronic Components 12, no. 1 (1985): 33–40. http://dx.doi.org/10.1155/1985/64056.

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Fixed resistors are usually protected against environmental influences. For this aim, special lacquers are used. Much of the environmental qualities of such a resistor are directly related to its enclosure.The resistive element of the potentiometer cannot be protected in the same way. The producers of quality potentiometers, especially thin film ones, designed an effective seal of their housing but it leads to an increase in production costs.The first researches on thin film resistive elements for potentiometers, proved the major sensitivity of the unit to moisture cycling, because of high water chemisorption on the resistive element surface.The chemisorption effect has the major influence on the temperature coefficient of resistance (TCR), because at a higher temperature, water desorption is occuring and the resistance of the film is undergoing a change.However, the IEC Standard recommends dry out of resistive elements before TCR measurement; the potentiometer users feel that total resistance changes as a sum of temperature change and drying out change.The present paper deals with trials to eliminate this disadvantage of thin film potentiometers by protection against moisture.The protective coating should, because of its affinity to the resistive film, form durable protection against environmental influences, but should not increase the contact resistance of the wiper (CRV). Such a coating also should not increase the friction coefficient of the wiper.To verify the hypothesis that polar lubricants can play a part in protective coating of thin film potentiometers, several different lubricants have been examined.
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Yuan, Jing Ping, and Fen Fen Yu. "The Development of a Potentiometer Electric Parameter Comprehensive Test Instrument." Advanced Materials Research 971-973 (June 2014): 1383–86. http://dx.doi.org/10.4028/www.scientific.net/amr.971-973.1383.

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This paper describes a sort of integrated tester controlled by STC series microcontroller that can be used to test simplex and duplex potentiometer’s total resistance, front and rear zero resistance, dynamic noise and duplex potentiometer synchronization feature. Multi-CPU parallel working mode is adopted by the tester. This paper mainly expounds the working principle of this test instrument, its software and hardware composition and the communication protocol between each part.
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Greenslade, Thomas B. "The Potentiometer." Physics Teacher 43, no. 4 (April 2005): 232–35. http://dx.doi.org/10.1119/1.1888084.

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Guo, Hua, and Hao Yan Wang. "Development of Auto-Correct System towards Circle Precise Carbon-Film Potentiometer." Key Engineering Materials 621 (August 2014): 687–92. http://dx.doi.org/10.4028/www.scientific.net/kem.621.687.

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Circle film carbon potentiometer, as a kind of position feedback device, is widely used in the servo feedback system in the field of aviation and aerospace technology. In the processes of making circle potentiometer, the process of correction on the linearity is an important factor which affects the pass rate of precise carbon-film potentiometer. Now people usually correct the linearity of potentiometer manually, with a lowefficiency and bad effect. Accordingly, in this work we develop a set of correct system on the linearity correction of circle precise carbon-film potentiometer by some research on the correct crafts of some circle potentiometer. The system mainly consists of circuit test part, mechanical correction part and PC control part. This system realizes the auto-correction of the linearity of circle potentiometer by measuring the resistance before correcting, substituting it to predetermined algorithm to make a target value and correcting the linearity. When using this system in the experiment, the corrected linearity of circle potentiometer is below 0.5%, which meets the develop target and using requirement.
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Bienfait, H. "A deflection potentiometer." Recueil des Travaux Chimiques des Pays-Bas 45, no. 3 (September 3, 2010): 166–68. http://dx.doi.org/10.1002/recl.19260450304.

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Dissertations / Theses on the topic "Potentiometer"

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Cooper, Emily Barbara 1977. "Design, fabrication, and testing of a scanning probe potentiometer." Thesis, Massachusetts Institute of Technology, 2000. http://hdl.handle.net/1721.1/86288.

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Thesis (S.B. and M.Eng.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 2000.
Includes bibliographical references (leaves 43-45).
by Emily Barbara Cooper.
S.B.and M.Eng.
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Jansson, Ola. "Methods to simulate resistance at high resolution and accuracy." Thesis, Uppsala universitet, Elektricitetslära, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-446653.

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In this paper, four methods to simulate or generate electric resistance at high resolution have been developed, tested and evaluated. Each method is called a Resistor Simulator and are numbered from one to four.  Resistor Simulator one is based upon a set of digital potentiometers configured to achieve increased performance over a single 8-bit potentiometer. There were many issues with calibration and control over the individual potentiometers leading to a decent but uneven characteristic.  Resistor Simulator two tests the setup of an encapsulated LED a photoresistor pair where output resistance is controlled by the light output of the current controlled LED. Although the output was purely resistive, and the resistance was controllable. This method has big issues with non-linearity and very poor repetitivity were the same input could give resistances several kiloOhms apart.  Resistor Simulator three uses an ADC in combination with a DAC to measure the current going through the simulator over a shunt-resistor and regulate the voltage output to match the voltage-drop that the set resistance would generate. There were some issues with working in the extreme ends of the analog electronics in the circuit limiting how low currents that could be properly measured. This problem could be bypassed to evaluate the rest of the system with good results. The limiting factor of the simulator was the resolution of the DAC at high resistances. Resistor Simulator four was the largest and costliest of them all, but performance was also the best. It is built as a resistance ladder with a set of 16 binary matched resistors and bypass switches for each resistance. This way, output resistance is set just like a binary number. The performance of the simulator was equally good throughout the entire resistance span. The only thing that limited performance from great to good was that it was hard to get precisely matched resistors of odd values and low tolerance making for some deviation from the theoretical resistances. All four resistance simulators were realized on a single Arduino shield PCB, designed with Altium Designer and assembled by the student. Although an Arduino was used for this project, any microcontroller could be used as all communication with the PCB is done via SPI.  Resistance performance was evaluated with an automated test system for inaccuracy, resolution and repetitivity. Furthermore, practicality parameters such as size and cost were evaluated to further determine the suitability of each resistor simulator.  The outcome from this work is intended to be used as basis to design systems for test and evaluation of alarm systems.
Denna rapport beskriver fyra metoder för att simulera eller generera elektisk resistans med hög upplösning och noggrannhet. Metoderna har identifierats, utvecklats, testats och utvärderats. Varje metod benämns som en Resistor Simulator och är numrerade från ett till fyra. Resistor Simulator ett bygger på en uppsättning av digitala potentiometrar konfigurerade i en krets för att utöka dess upplösning och prestanda jämfört med en enkel 8-bitars potentiometer. Dock så stöttes en hel del problem på i samband med kalibrering och styrning av de individuella potentiometrarna med hyffsad men ojämn karaktäristik. Resistor Simulator två utvärderar konceptet med en inkapslad LED och fotoresistor där resistansen styrs genom att kontrollera ljusflödet med strömstyrning av dioden. Denna lösning var den enda med rent resistiv utgång och resistansen var kontrollerbar. Dock så har metoden stora problem med icke-linjärt beteende och variationer mellan test där samma styrsignal kan ge resistanser flera kiloOhm från varandra. Resistor Simulator tre använder en ADC tillsammans med en DAC för att mäta strömmen genom simulatorn och reglera spänningen för att motsvara det spänningsfall som den valda resistansen skulle generera. Denna lösning stötte på en del problem med för höga spänningsnivåer på den analoga elektronik som användes vilket begränsade hur låga strömmar som kunde mätas. Detta problem kunde förbigås för att utvärdera resten av systemet med goda resultat. Den begränsande faktorn för simulatorns upplösning låg dock i upplösningen på DAC vid höga resistanser. Resistor Simulator fyra var den största och dyraste av dem alla, men också den som presterade bäst. Den är byggd som en resistorstege med en uppsättning av 16 binärt matchade resistorer som alla försetts med en kortslutande styrbar brytare vilket gör att resistans kan beräknas på samma sätt som ett binärtal räknas. Prestandan var genomgående bra i hela mätområdet med enda baksida att det var svårt att införskaffa resistorer av udda värden med mycket låga toleranser varav mindre avvikelser från den teoretiska upplösningen uppkom. Alla simulatorer realiserades på ett tilläggskort till en Arduino som designats med Altium Designer och byggdes ihop av studenten. Även om en Arduino användes för just detta projekt skulle vilken annan mikrokontroller kunna användas då all kommunikation på kretskortet sker via SPI. Prestandan av simulerad resistans testades med ett automatiskt testsystem och utvärderades för onoggrannhet, upplösning och repeterbarhet. Utöver detta utvärderades praktiska parametrar som storlek och materialkostnad för att kunna utvärdera i vilka sammanhang respektive simulator passar bäst till. Utfallet från detta arbete avser att ligga till grund för utveckling av utrustning för test och utvärdering av larmsystem.
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Persson, Linus, and Natalija Zivanovic. "Picasso : CNC plotter." Thesis, KTH, Maskinkonstruktion (Inst.), 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-230244.

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In today’s society, CNC machines are used for various purposes.In this project, a CNC plotter is created to analyzehow the performance of the plotter differs when using twodifferent motors: a DC motor controlled by a potentiometerin the horizontal direction and a stepper motor in thevertical direction. A CNC plotter is built and used to dotests in order to answer the research question. The resultsshow that a DC motor with a potentiometer is more precisethan a stepper motor and the mean value of the relative errorsin the vertical direction is always higher. The valuesdiffer with 1 percentage point to 3 percentage points. Thedifference in the performance of the two motors depend onseveral factors and one of the main factors is considered tobe the fact that the stepper motor sometimes skips steps.
I dagens samhälle används CNC-maskiner för olika ändamål.I detta projekt skapades en CNC-plotter för att analyserahur plotterns prestanda skiljer sig vid användning avtvå olika motorer: en DC motor kontrollerad av en potentiometeri horisontell riktning och en stegmotor i vertikalriktning. En CNC-plotter byggdes och användes för genomförandeav tester för att kunna svara på forskningsfrågan.Resultaten visar att en DC motor med en potentiometer ärmer exakt än en stegmotor och medelvärdet av de relativafelen i vertikala riktningen är alltid högre. Värdena skiljersig från 1 procentenhet till 3 procentenheter. Skillnaden iprestanda för de två motorerna beror på flera faktorer ochen av huvudfaktorerna anses vara det faktum att stegmotornibland hoppar över steg.
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Bronec, David. "Kmitočtové filtry řízené mikroprocesory." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2015. http://www.nusl.cz/ntk/nusl-221239.

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This thesis is focused on the microprocessor-controlled frequency filter project. The main goal of the thesis is to present basic terms and principles of frequency filters and active frequency filters for cascading synthesis. Furthermore, the work contains information on digital potentiometers. The thesis includes circuit simulations and a project of connecting with a printed circuit board. The last chapter contains the results of the measurements.
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PERSSON, LINUS, and NATALIJA ZIVANOVIC. "Picasso : CNC plotter." Thesis, KTH, Mekatronik, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-233002.

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In today’s society, CNC machines are used for various purposes. In this project, a CNC plotter is created to analyze how the performance of the plotter differs when using two different motors: a DC motor controlled by a potentiometer in the horizontal direction and a stepper motor in the vertical direction. A CNC plotter is built and used to do tests in order to answer the research question. The results show that a DC motor with a potentiometer is more precise than a stepper motor and the mean value of the relative errors in the vertical direction is always higher. The values differ with 1 percentage point to 3 percentage points. The difference in the performance of the two motors depend on several factors and one of the main factors is considered to be the fact that the stepper motor sometimes skips steps.
I dagens samhälle används CNC-maskiner för olika ändamål. I detta projekt skapades en CNC-plotter för att analysera hur plotterns prestanda skiljer sig vid användning av två olika motorer: en DC motor kontrollerad av en potentiometer i horisontell riktning och en stegmotor i vertikal riktning. En CNC-plotter byggdes och användes för genomförande av tester för att kunna svara på forskningsfrågan. Resultaten visar att en DC motor med en potentiometer är mer exakt än en stegmotor och medelvärdet av de relativa felen i vertikala riktningen är alltid högre. Värdena skiljer sig från 1 procentenhet till 3 procentenheter. Skillnaden i prestanda för de två motorerna beror på flera faktorer och en av huvudfaktorerna anses vara det faktum att stegmotorn ibland hoppar över steg.
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Oder, Stephen, Gelais Robert St, Peter Caron, and Douglas Bajgot. "Development of a Digital Potentiometer Circuit for Digital Compensation of Frequency and Temperature Variations of Kvco to Provide Reprogramming of the Transmitter RF Center Frequency in the Field." International Foundation for Telemetering, 2013. http://hdl.handle.net/10150/579704.

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ITC/USA 2013 Conference Proceedings / The Forty-Ninth Annual International Telemetering Conference and Technical Exhibition / October 21-24, 2013 / Bally's Hotel & Convention Center, Las Vegas, NV
Cobham Electronic Systems, Inc. has developed a digital potentiometer circuit to allow for digital compensation of frequency and temperature variations in the VCO/PLL frequency control loop of a telemetry transmitter. The ability to reprogram the RF center frequency of a telemetry transmitter is a useful feature and is required on many telemetry programs. When setting the frequency modulation deviation (FM Modulation Index) of a telemetry transmitter, the exact setting will change with RF center frequency due to the variation of the transfer function of the VCO (Kvco). Typically, a resistor divider is used to set the frequency modulation deviation level by setting the output data signal amplitude. However, since Kvco varies with respect to RF center frequency, a method of adjusting frequency modulation deviation for each frequency setting is required. The shunt resistor in the resistor divider is replaced with a digital potentiometer to provide the necessary adjustment, using the on-board microprocessor to store a look-up table of settings versus frequency. A key feature of the digital potentiometer circuit is a method to increase the frequency bandwidth of the potentiometer. Digital potentiometers typically have frequency bandwidths measured in kiloHertz to MegaHertz, which limits their use in setting the frequency modulation deviation of high data rate telemetry transmitters. The circuit consists of a 256 position digital potentiometer and several resistors that are used to adjust the slope of the resistance vs. digital code curve and to translate the curve up and down along the Y-Axis. Adding external resistors to the digital potentiometer helps to increase the frequency bandwidth of the digital potentiometer. The selection of the maximum resistance range of the digital potentiometer is also important, as the potentiometer bandwidth is greater when a small portion of the total resistance is used. This paper will explore various methods of increasing the effective bandwidth of a digital potentiometer, with the goal of making them suitable for use in dynamically setting the frequency modulation deviation via digital control.
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Linder-Aronson, Philip, and Simon Stenberg. "Exo-Controlled Biomimetic Robotic Hand : A design solution for control of a robotic hand with an exoskeleton." Thesis, KTH, Mekatronik, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-295846.

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Robotic arms and hands come in all shapes and sizes, they can be general purpose or task-specific. They can be pre-programed by a computer or controlled by a human operator. There is a certain subsection of robotic hands which try to mimic the shape, movement and function of the human hand, these are sometimes known as biomimetic robotics. This project explores the human robot interaction by creating an anthropomorphic robotic hand with an accompanying exoskeleton. The hand, which consists of a 3D-printed body and fingers, is connected to a forearm where the servos that control the fingers are housed. The exoskeleton connects to the operator's hand allowing finger tracking through a set of potentiometers. This setup allows the operator to intuitively control a robotic hand with a certain degree of precision. We set out to answer research questions in regard to the form and function of a biomimetic hand and the exoskeleton. Along the way, a multitude of problems were encountered such as budgetary issues resulting in only half the fingers having movement. Despite this, good results were gathered from the functioning fingers and our research questions were answered.
Robotarmar och händer finns många former och storlekar, de kan vara för allmänna ändamål eller uppgiftsspecifika. De kan programmeras av en dator eller styras av en mänsklig operatör. Det finns en viss typ av robothänder som försöker efterlikna formen, rörelsen och funktionen hos den mänskliga handen, och brukar kallas biomimetisk robotik. Detta projekt utforskar interaktionen mellan människa och robot genom att skapa en antropomorf robothand med tillhörande exoskelett. Handen, som består av en 3D-printad kropp och fingrar, är ansluten till en underarm där servormotorerna som styr fingrarna sitter. Exoskelettet ansluts till operatörens hand vilket möjliggör spårning av fingrarnas rörelse genom ett antal potentiometrar. Detta tillåter operatören att intuitivt styra en robothand med en viss grad av precision. Vi valde att besvara ett antal forskningsfrågor med avseende på form och funktion av en biomimetisk hand och exoskelettet. Under projektets gång påträffades en mängd problem såsom budgetproblem som resulterade i att bara hälften av fingrarna kan kontrolleras. Trots detta fick vi bra resultat från de fungerande fingrarna och våra forskningsfrågor kunde besvaras.
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Jansson, Patrick. "Programmerbar signalanpassning." Thesis, Linköping University, Department of Science and Technology, 2001. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-1032.

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The data acquisition system COMET developed by Saab AB contains a unit for signal conditioning and A/D conversion, called KSM. The varieties in signal conditioning constitutes of a number of specific PBAs and maintenance as well as reconfiguration of these are complicated not to mention costly. This thesis has aimed to investigating whether the signal conditioning circuits can be replaced by a general purpose, programmable solution. If so, how can this be done?

The development has been carried out by evaluating ideas through the use of a laboratory environment and has resulted in an analog design for laboratory purpose. A reconfigurable design is the result of this thesis as an alternative to the solution used today. In the proposed design mainly digital otentiometers, switches and MUXes are used. In that way signal path and overall behaviour can be selected. Some extensions have been made in comparison to the current functionality, but additional development is necessary to make the design complete.

Future versions of the COMET system could be significantly improved by considering the result of this thesis when developing the signal conditioning circuitry.

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Atighechi, Arsham, and Hussein Haidari. "Vision for the Blind." Thesis, KTH, Maskinkonstruktion (Inst.), 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-230150.

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How can we improve the living standards of the visuallyimpaired using an Arduino?Living with visual impairment could potentially be oneof the hardest things one could do. Constantly having toworry about obstacles and carrying a stick to feel your wayforward. In order to combat this difficulty, we have designedVision for the Blind.One of the usages of ultrasonic sensors are to measurethe distance from objects using sound waves. These sensors,in combination with Piezo buzzers, have been used inVision for the Blind to warn the user of incoming obstaclesby emitting sound from the buzzers. The volume of thebuzzers is controlled by using a digital potentiometer andvaries depending on the measured distance. All three areconnected to an Arduino which has been coded to performthe given task.
Hur kan vi öka levnadsstandarden för visuellt nedsattamänniskor med hjälp av en Arduino?Att leva med visuell nedsättning är självklart ett stortproblem som medför svårigheter, att alltid vara orolig överhinder som kan finnas i vägen eller bära en pinne med sigför att hitta sin väg. För att bekämpa de här svårigheternahar vi konstruerat Vision for the Blind.Ultraljudsbaserade sensorer använder ljudvågor för attmäta avstånd från ett objekt. Dessa sensorer har använtsi Vision for the Blind i kombination med Piezo sumrarför att varna användaren om inkommande hinder genomatt emittera ljud från sumrarna. Ljudvolymen kontrollerasmed hjälp av en digital potentiometer och varierar med detuppmätta avståndet. Alla tre är kopplade till en Arduinosom är kodad för att utföra det givna uppdraget.
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10

Gustafsson, Helena. "Implementering av ett parameteriserbart aktivt vågfilter." Thesis, Linköping University, Department of Electrical Engineering, 2003. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-2100.

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Detta examensarbete gick ut på att försöka hitta ett sätt att mäta kompo nentkänslighet hos parameteriserbara aktiva vågfilter. Två olika ansatser har gjorts, men bara ett försök har avslutats.

Det första försöket behandlar möjligheten att realisera ett vågfilter med hjälp av standardkomponenter i en kretskortslösning. Detta fungerade inte beroende på att nödvändiga komponenter inte finns på marknaden idag. Komponenterna som finns har för stora parasitkapacitanser. Dessa oönskade parasiter var så stora att de skulle kunna förstöra funktionen och det var således inte värt att fortsätta försöket. De komponenter som undersöktes var resistansstegar och digitala potentiometrar. Den största delen av studierna till det första försöket har bestått i att studera datablad från olika kretstillverkare för att hitta lämpliga komponenter.

Istället startades ett nytt försök som syftade till att undersöka möjligheten att implementera ett aktivt vågfilter i en integrerad krets. I denna rapport presenteras en förstudie till hur en sådan lösning skulle kunna se ut. För att möjliggöra en fortsättning där mitt examensarbete tar slut har arbetet förklarats ingående. Jag har också inkluderat min programkod som bilagor i slutet av rapporten.


The purpose of this thesis was to find a way of measuring the sensitivity of component values for parameterized wave active filters. Two different approaches were made, but only one was finished.

The first approach is about the possibility of making a wave active filter with standard components on a printed circuit board. This did not work though, because of a scarce market of possible components. The compo-nents existing today have too high parasite capacitances. These unwanted parasites are so large in value that they could destroy the functionality and it was therefore not worth continuing the attempt. The components that were investigated as possible on the board were ladder networks and digitally controlled potentiometers. The main part of the studies for the first attempt was to read data sheets from different electronic companies trying to find possible components.

Instead a new approach was made with the purpose of investigating the possibility of making a wave active filter as an integrated circuit. In this report a pilot study for such an attempt is presented. To make it possible to continue work where these studies end, the work has been carefully explained. I have also included the computer programs I have made in the appendix of the report.

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Books on the topic "Potentiometer"

1

Potentiometry and potentiometric titrations. Malabar, Fla: Krieger Pub. Co., 1991.

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Lobmeyer, David H. Freshwater heads and ground-water temperatures in aquifers of the Northern Great Plains in parts of Montana, North Dakota, South Dakota, and Wyoming. Washington, D.C: U.S. G.P.O., 1985.

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J, Motekaitis R., ed. Determination and use of stability constants. 2nd ed. New York: Wiley, 1992.

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4

1923-, James A. M., and ACOL (Project), eds. Potentiometry and ion selective electrodes. Chichester [West Sussex]: Published on behalf of ACOL, Thames Polytechnic, London, by Wiley, 1987.

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Néher-Neumann, Erzsébet. Advanced Potentiometry. Dordrecht: Springer Netherlands, 2009. http://dx.doi.org/10.1007/978-1-4020-9525-2.

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Components, Philips. Potentiometers and switches: Data handbook. Eindhoven: Philips Components, 1992.

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Evans, Alun. Potentiometry and ion selective electrodes. Edited by James A. M. 1923- and ACOL. Chichester: Published on behalf of ACOL by Wiley, 1987.

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Joseph, Robert L. Potentiometric surface of the Cockfield aquifer in southeastern Arkansas and the Wilcox aquifers in southern and northeastern Arkansas, October 1996-July 1997. Little Rock, Ark: U.S. Dept. of the Interior, U.S. Geological Survey, 1998.

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Schrader, Tony P. Potentiometric surface of the Ozark aquifer in northern Arkansas, 2001. Little Rock, Ark: U.S. Dept. of the Interior, U.S. Geological Survey, 2001.

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Michałowski, Tadeusz. Nowe koncepcje analizy stężonych roztworów elektrolitów metodą potencjometrycznego miareczkowania w układach kwasowo-zasadowych. Kraków: Nakł. Uniwersytetu Jagiellońskiego, 1989.

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Book chapters on the topic "Potentiometer"

1

Gerlach, Eckard, Peter Grosse, and Eike Gerstenhauer. "Potentiometer." In Physik-Übungen für Ingenieure, 150–52. Wiesbaden: Vieweg+Teubner Verlag, 1995. http://dx.doi.org/10.1007/978-3-663-12297-5_65.

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Gerlach, Eckard, Peter Grosse, and Eike Gerstenhauer. "Potentiometer." In Physik-Übungen für Ingenieure, 150–52. Wiesbaden: Vieweg+Teubner Verlag, 1995. http://dx.doi.org/10.1007/978-3-663-12298-2_65.

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Weik, Martin H. "potentiometer." In Computer Science and Communications Dictionary, 1308. Boston, MA: Springer US, 2000. http://dx.doi.org/10.1007/1-4020-0613-6_14393.

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Gasperi, Michael, and Philippe “Philo” Hurbain. "Potentiometer Sensors." In Extreme NXT: Extending the LEGO MINDSTORMS NXT to the Next Level, 103–18. Berkeley, CA: Apress, 2009. http://dx.doi.org/10.1007/978-1-4302-2454-9_6.

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Gay, Warren. "Potentiometer Input Controls." In Custom Raspberry Pi Interfaces, 91–102. Berkeley, CA: Apress, 2017. http://dx.doi.org/10.1007/978-1-4842-2406-9_7.

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Weik, Martin H. "potentiometer set mode." In Computer Science and Communications Dictionary, 1308. Boston, MA: Springer US, 2000. http://dx.doi.org/10.1007/1-4020-0613-6_14394.

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Niemeyer, J. "Josephson Series Array Potentiometer." In Superconducting Quantum Electronics, 228–54. Berlin, Heidelberg: Springer Berlin Heidelberg, 1989. http://dx.doi.org/10.1007/978-3-642-95592-1_9.

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Tan, Jinpei, Shukai Duan, Ting Yang, and Hangtao Zhu. "A Programmable Memristor Potentiometer and Its Application in the Filter Circuit." In Advances in Neural Networks - ISNN 2017, 326–35. Cham: Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-59081-3_39.

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Guo, Weini, Xiaomao Man, and Jiajia Xu. "Improved Design of the Oil Guide Tube of the Oil Level Potentiometer." In Lecture Notes in Electrical Engineering, 357–63. Singapore: Springer Nature Singapore, 2022. http://dx.doi.org/10.1007/978-981-19-4132-0_43.

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Neumann, Erzsébet Néher. "Introduction." In Advanced Potentiometry, 1–16. Dordrecht: Springer Netherlands, 2009. http://dx.doi.org/10.1007/978-1-4020-9525-2_1.

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Conference papers on the topic "Potentiometer"

1

Akashi, Koji, Takayoshi Tsuzuki, Masaya Otokawa, and Yukihiro Kato. "Newly Developed Long-Life Potentiometer for Automobiles." In Passenger Car Conference & Exposition. 400 Commonwealth Drive, Warrendale, PA, United States: SAE International, 1993. http://dx.doi.org/10.4271/932868.

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Amri, Iful, Elisabeth Dian Atmajati, Rahmat Awaludin Salam, Elfi Yuliza, Muhammad Miftahul Munir, and Khairurrijal. "Potentiometer a simple light dependent resistor-based digital." In 2016 International Seminar on Sensors, Instrumentation, Measurement and Metrology (ISSIMM). IEEE, 2016. http://dx.doi.org/10.1109/issimm.2016.7803715.

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Zavrel, Erik A., and Xiling Shen. "Toward a Microfluidic Implementation of a Digital Potentiometer." In 2018 Design of Medical Devices Conference. American Society of Mechanical Engineers, 2018. http://dx.doi.org/10.1115/dmd2018-6812.

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Inagaki, Sakamoto, and Endo. "Accuracy of Measurements of the Quantised Hall Resistivity by a Direct Current Comparator Type Potentiometer: Calibration Using a Josephson Potentiometer." In Conference on Precision Electromagnetic Measurements. IEEE, 1988. http://dx.doi.org/10.1109/cpem.1988.671306.

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Wang Liu-Min and Mo Bo. "Design of performance indicators auto-test system for potentiometer." In 2011 International Conference on Electric Information and Control Engineering (ICEICE). IEEE, 2011. http://dx.doi.org/10.1109/iceice.2011.5777763.

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de la Cruz-Alejo, Jesus, Felipe Gomez-Castaneda, and Jose A. Moreno-Cadenas. "Electronic potentiometer cell using a CMOS floating-gate memory." In 2008 5th International Conference on Electrical Engineering, Computing Science and Automatic Control (CCE). IEEE, 2008. http://dx.doi.org/10.1109/iceee.2008.4723407.

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Guochen, An, and Sha Zhanyou. "Programmable Voltage Regulator Design based on Digitally Controlled Potentiometer." In 2007 8th International Conference on Electronic Measurement and Instruments. IEEE, 2007. http://dx.doi.org/10.1109/icemi.2007.4350484.

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Zhanyou, Sha, Yu Guoqing, and An Guochen. "Test Technology and Debouncing Circuit Design of Digitally Controlled Potentiometer." In 2007 8th International Conference on Electronic Measurement and Instruments. IEEE, 2007. http://dx.doi.org/10.1109/icemi.2007.4350867.

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Yanpeng, Wang, Gao Guanwang, Sha Zhanyou, and Li Shian. "Design of Programmable Tee Networks Based on Digitally Controlled Potentiometer." In 2007 8th International Conference on Electronic Measurement and Instruments. IEEE, 2007. http://dx.doi.org/10.1109/icemi.2007.4350698.

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Batin, Kevin Rowel A., Glenn V. Magwili, and Flordeliza L. Valiente. "Test Time Reduction for Nonlinearity Error Testing of Digital Potentiometer." In 2020 IEEE 12th International Conference on Humanoid, Nanotechnology, Information Technology, Communication and Control, Environment, and Management (HNICEM). IEEE, 2020. http://dx.doi.org/10.1109/hnicem51456.2020.9400114.

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Reports on the topic "Potentiometer"

1

Potentiometic surface, 1980, and water-level changes, 1969-80, in the unconfined valley-fill aquifers of the San Luis Basin, Colorado and New Mexico. US Geological Survey, 1985. http://dx.doi.org/10.3133/ha683.

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