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Dissertations / Theses on the topic 'Water Level Sensor'

Author: Grafiati

Published: 3 June 2025

Last updated: 31 July 2025

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1

Šamánek, Radek. "Posouzení časových změn přesnosti vykazovaného průtoku a proteklého objemu u měřicích systémů využívajících vzdouvací objekty." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2019. http://www.nusl.cz/ntk/nusl-391943.

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The diploma thesis deals with monitoring of metrological characteristics of ultrasonic sensors located at the FAST and in-situ and the evaluation of the time development in the values of the discharge and the outflow volumes reported by the ultrasonic sensors.

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2

Dalkic, Yurdaer, and Zoubida Alshekhly. "Development and design of a prototype for monitoring the water level in water wells using LoRaWAN." Thesis, Malmö universitet, Fakulteten för teknik och samhälle (TS), 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:mau:diva-20667.

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En översvämning kan inträffa när som helst och var som helst i världen. En översvämning börjar när vattennivån ökar, särskilt i dagvattenbrunnar i stadsområden. Genom att utnyttja de olika moderna teknologier som Internet of Things (IoT), förluster som orsakas av en översvämning kan minskas. Därför behövs en IoT-lösning för att övervaka vattennivån i brunnarna.Syftet med denna avhandling är att undersöka hur man konstruerar och implementerar ett IoT-baserat system som övervakar vattennivån för att bygga en prototyp med LoRaWAN teknologi. Konstruktionen av prototypen utförs genom att följa steg

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3

Бойчук, Дмитро Романович, та Dmytro Boychuk. "Розробка автоматизованого лабораторного стенду для перевіряння метрологічних характеристик давачів рівня води". Bachelor's thesis, Тернопільський національний технічний університет ім. І. Пулюя, Факультет прикладних інформаційних технологій та електроінженерії, Кафедра автоматизації технологічних процесів і виробництв, 2021. http://elartu.tntu.edu.ua/handle/lib/35485.

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Робота виконана на кафедрі автоматизації технологічних процесів і виробництв факультету прикладних інформаційних технологій та електроінженерії Тернопільського національного технічного університету імені Івана Пулюя Міністерства освіти і науки України. Захист відбудеться «24» червня 2021 р. о 9.00 год. на засіданні екзаменаційної комісії №21 у Тернопільському національному технічному університеті імені Івана Пулюя.<br>Дана кваліфікаційній робота складається з таких розділів: – вступу, де проводиться опис актуальності автоматизації лабораторного стенду для вимірювання рівня води за допомогою р

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Abelin, Sarah. "Investigation of integrated waterlevel sensor solution forsubmersible pumps : A study of how sensors can be combined towithstand build-up materials and improvereliability in harsh environment." Thesis, KTH, Maskinkonstruktion (Inst.), 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-210223.

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Monitoring water level in harsh environment in order to handle the start and stop function of drainage pumps has been a major issue. Several environmental factors are present, which affect and disturb sensor measurements. Current solutions with mechanical float switches, mounted outside of pumps, wear out, get entangled and account for more than half of all the emergency call outs to pumping stations. Since pumps are frequently moved around, a new sensor solution is needed which can be integrated within the pump house and is able to continuously monitor water level to optimize the operation of

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5

Janík, Vladimír. "Chytré čerpadlo na čerpání vody z nádrže." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2021. http://www.nusl.cz/ntk/nusl-442364.

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This thesis deals with the implementation of a system for measuring the amount of water in the tank using a 12V water pump. The whole system is controlled by the ESP32 microcontroller. The introduction deals with the theoretical analysis of various principles of measuring the level of liquids. The next part deals with the procedure of the construction of the measuring device and its theoretical analysis. The last part of the work deals with the control of the pump and the individual functions that provide this control. The ultrasonic distance sensor AJ-SR04M was chosen for the implementation o

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6

Fernandes, Lenita da Silva Lucio. "Controle feedback de n?vel baseado em sensor de imagem aplicado ao equipamento misturador-decantador ? invers?o de fases (MDIF?)." Universidade Federal do Rio Grande do Norte, 2009. http://repositorio.ufrn.br:8080/jspui/handle/123456789/15779.

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Made available in DSpace on 2014-12-17T15:01:20Z (GMT). No. of bitstreams: 1 LenitaSLF.pdf: 2627101 bytes, checksum: 55e09659bccdbe036d1c49a7fea4b6ca (MD5) Previous issue date: 2009-09-03<br>Conselho Nacional de Desenvolvimento Cient?fico e Tecnol?gico<br>The treatment of wastewaters contaminated with oil is of great practical interest and it is fundamental in environmental issues. A relevant process, which has been studied on continuous treatment of contaminated water with oil, is the equipment denominated MDIF? (a mixer-settler based on phase inversion). An important variable during the op

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7

Fraher, Patrick M. A. "Environmental sensor validation." Thesis, University of Oxford, 1995. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.308651.

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8

Tekle, Tesfalem Tsegay. "Ultrasonic stream bridge sensors (USBS) error in water level estimation." Thesis, University of Iowa, 2014. https://ir.uiowa.edu/etd/4770.

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After the flood event in 2008, Iowa Flood Center (IFC) designed a new water level measuring system, Ultrasonic Stream Bridge Sensors (USBS), to monitor stream water level in Iowa. The system is composed of an ultrasonic, a GSM cell modem, solar panel, and battery, and an internal temperature sensor; all components assembled in a weather proof box. The USBS are designed to be mounted in a bridge crossing and uses speed of sound to sense the distance from the sensor to the water surface. USBS are inexpensive compared to other system of water level measuring systems. However, ultrasonic sensor in

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9

Torunbalci, Mert Mustafa. "Wafer Level Vacuum Packaging Of Mems Sensors And Resonators." Master's thesis, METU, 2011. http://etd.lib.metu.edu.tr/upload/12613015/index.pdf.

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This thesis presents the development of wafer level vacuum packaging processes using Au-Si eutectic and glass frit bonding contributing to the improvement of packaging concepts for a variety of MEMS devices. In the first phase of this research, micromachined resonators and pirani vacuum gauges are designed for the evaluation of the vacuum package performance. These designs are verified using MATLAB and Coventorware finite element modeling tool. Designed resonators and pirani vacuum gauges and previously developed gyroscopes with lateral feedthroughs are fabricated with a newly developed Silico

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10

Gatty, Hithesh K. "MEMS-based electrochemical gas sensors and wafer-level methods." Doctoral thesis, KTH, Mikro- och nanosystemteknik, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-172955.

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This thesis describes novel microel ectromechanical system (MEMS) based electrochemical gas sensors and methods of fabrication. This thesis presents the research in two parts. In the first part, a method to handle a thin silicon wafer using an electrochemically active adhesive is described. Handling of a thin silicon wafer is an important issue in 3D-IC manufacturing where through silicon vias (TSVs) is an enabling technology. Thin silicon wafers are flexible and fragile, therefore difficult to handle. In addressing the need for a reliable solution, a method based on an electrochemically activ

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11

Oba, Masatoshi. "STUDIES ON THE FABRICATION OF VERTICAL INTEGRATED MEMS DEVICES." 京都大学 (Kyoto University), 2010. http://hdl.handle.net/2433/126817.

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12

Antelius, Mikael. "Wafer-scale Vacuum and Liquid Packaging Concepts for an Optical Thin-film Gas Sensor." Doctoral thesis, KTH, Mikro- och nanosystemteknik, 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-119839.

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This thesis treats the development of packaging and integration methods for the cost-efficient encapsulation and packaging of microelectromechanical (MEMS) devices. The packaging of MEMS devices is often more costly than the device itself, partly because the packaging can be crucial for the performance of the device. For devices which contain liquids or needs to be enclosed in a vacuum, the packaging can account for up to 80% of the total cost of the device. The first part of this thesis presents the integration scheme for an optical dye thin film NO2-gas sensor, designed using cost-efficient

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13

Uppalapati, Balaadithya. "Design and Analysis of Wafer-Level Vacuum-Encapsulated Disk Resonator Gyroscope Using a Commercial MEMS Process." University of Dayton / OhioLINK, 2017. http://rave.ohiolink.edu/etdc/view?acc_num=dayton1510764485530995.

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14

Moc, Filip. "Vestavěný systém pro automatizaci chovné stanice akvarijních ryb." Master's thesis, Vysoké učení technické v Brně. Fakulta informačních technologií, 2018. http://www.nusl.cz/ntk/nusl-385996.

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This master's thesis is concerned about embedded system for automatic water renewal in aquariums. Besides water renewal system also controls lights and ventilation in aquarium fish breeding station. In this report you will find informtions about technology relevant to automation of aquarium fish breeding station. Also you will find here informations about design and implementation of my specific final working solution.

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15

Pačinek, David. "Monitorovací systém vodních toků s GSM komunikací." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2014. http://www.nusl.cz/ntk/nusl-220702.

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This master thesis is dedicated to system of water monitoring for use of alternative source power supply and GSM communication. The thesis carried out research on the possibilities to take measurements on watercourses, also detailed research of photovoltaic panel, available accumulators and their charging and a synopsis of similar systems. Furthermore, the master thesis also captures design and implementation datalogger device type with possibility to send measured data to the website.

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16

Forke, Roman. "Mikromechanisches kraftgekoppeltes Sensor-Aktuator-System für die resonante Detektion niederfrequenter Schwingungen." Doctoral thesis, Universitätsbibliothek Chemnitz, 2013. http://nbn-resolving.de/urn:nbn:de:bsz:ch1-qucosa-100498.

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Die vorliegende Arbeit beschreibt die Entwicklung und Charakterisierung eines mikromechanischen kraftgekoppelten Schwingsystems für die resonante Detektion niederfrequenter Schwingungen. Es wird ein neuartiges Prinzip vorgestellt, das es ermöglicht, niederfrequente Vibrationen frequenzselektiv zu erfassen. Mittels Amplitudenmodulation wird das niederfrequente Signal in einen höheren Frequenzbereich umgesetzt. Durch Ausnutzung der mechanischen Resonanzüberhöhung wird aus dem breitbandigen Signal ein schmales Band herausgefiltert, die anderen Frequenzbereiche werden unterdrückt. Auf diese Weise

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17

Forke, Roman. "Mikromechanisches kraftgekoppeltes Sensor-Aktuator-System für die resonante Detektion niederfrequenter Schwingungen." Doctoral thesis, Universitätsverlag der Technischen Universität Chemnitz, 2012. https://monarch.qucosa.de/id/qucosa%3A19809.

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Die vorliegende Arbeit beschreibt die Entwicklung und Charakterisierung eines mikromechanischen kraftgekoppelten Schwingsystems für die resonante Detektion niederfrequenter Schwingungen. Es wird ein neuartiges Prinzip vorgestellt, das es ermöglicht, niederfrequente Vibrationen frequenzselektiv zu erfassen. Mittels Amplitudenmodulation wird das niederfrequente Signal in einen höheren Frequenzbereich umgesetzt. Durch Ausnutzung der mechanischen Resonanzüberhöhung wird aus dem breitbandigen Signal ein schmales Band herausgefiltert, die anderen Frequenzbereiche werden unterdrückt. Auf diese Weise

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18

Pospíšil, Jakub. "Bezdrátová čidla pro měření hladiny vody." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2010. http://www.nusl.cz/ntk/nusl-218270.

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The thesis deals with both scheme and its implementation of water-level metering apparatus. This data are send wireless into 500 m distant station. Potential ways of solution are gradually studied and final design suggested. Detailed implementation methods are described in the following section. Ultrasonic sensors are employed for level measurement and controlling element is processor ATmega162, data are transmitted by transceiver RC1280HP. Apparatus is suggested with a view to the lowest power consumption considering it will be supplied only with a accumulator. Solving of accepting station is

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19

Chvátal, Michal. "Řízení dodávky vody v rodinném domě." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2021. http://www.nusl.cz/ntk/nusl-442453.

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The diploma thesis deals with the design and implementation of the system that will control the water supply for the family house and its garden. The system aslo allows you to store a history that can be viewed via the web interface. The web interface also allows you to set system parameters and monitor the current status.

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20

Januário, Carlos Filipe da Costa. "Actividade física, autarquias e políticas desportivas-um estudo realizado na freguesia de Miragaia (Porto)." Master's thesis, Instituições portuguesas -- UP-Universidade do Porto -- -Faculdade de Ciências do Desporto e de Educação Física, 2001. http://dited.bn.pt:80/29453.

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21

耿培倫. "Experiment in Water Level Measurment Using Resistent Type Sensor." Thesis, 2013. http://ndltd.ncl.edu.tw/handle/28818031222840235151.

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碩士<br>逢甲大學<br>土木工程學系<br>101<br>The observation instruments in water level measurement was restricted by different environments and setting patterns. To measure level and depth of water, the study had been designed 30 groups of resistent type sensors with combination of 5 negative electrodes, 2 types of screw cap and 3 electrode gaps. It was found that the use of resistent type sensor was effective in water level measurement. According to the experimental results, the readings of resistance value between 820-830 showed that the measurement position was between the air and water. The stability o

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22

Tsai, Tsung-Min, and 蔡宗旻. "Stage Measuring Technique Improvement of Ultrasonic Sensor Gauge and Accuracy Verifying Procedure of Water Level Data." Thesis, 2004. http://ndltd.ncl.edu.tw/handle/dbs579.

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碩士<br>國立成功大學<br>水利及海洋工程學系碩博士班<br>92<br>Long-term as well as accuracy stage data is essential for project planning and construction design in Hydraulic and/or Water resources engineering, and being a decision making basis of relative strategy. It is believed that a water float stage recorder is the better choice on site for its low-failure and well performance functions. Since low-discharge channel of stream could be detoured after flooding and the stilling well of water float stage recorder could be silt up, the stage measuring in stream suffered some limitations. Ultrasonic sensor gauges are

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23

陳自豪. "Reliability analysis of wafer-level chip-scale packaging technologies for CMOS image sensor." Thesis, 2008. http://ndltd.ncl.edu.tw/handle/07302228722841444428.

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碩士<br>中華大學<br>機械工程學系碩士班<br>96<br>Abstract The objective of this thesis is to study the reliability of CMOS image sensor wafer level chip scale packages. The issues of the reliability can be categorized in two topics. One is the reliability of lead-free BGA and the other is the delamination and crack of the infrastructure of the packages. Lead is a poisonous material that causes serious environment pollution. Also, the merit of lead-free material characteristic drives the trend of using lead-free widespreadly. Amount of lead-free materials are available in the markets depending on its compone

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24

Lin, Wei-Nan, and 林威男. "Experimental measurements of mechanical strain, temperature change and water level using fiber Bragg grating sensors." Thesis, 2011. http://ndltd.ncl.edu.tw/handle/53957212649563449277.

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碩士<br>元智大學<br>機械工程學系<br>99<br>Basing on the shift of Bragg wavelength, fiber Bragg grating sensors (FBG) have been developed to measure a variety of physical parameters such as stress, strain, displacement, temperature, vibration and pressure. In this work, the FBG was connected to an optical spectrum analyzer (OSA) to measure the mechanical strain and temperature change simultaneously. The measuring results were validated with the strain gauge and thermal couple. In order to measure the dynamic responses, the FBG was incorporated with the optical filter and photo detector to convert the shift

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25

Fang, Zhi-Yong, and 房志勇. "Development of a production management system of tape package for wafer level package image sensor." Thesis, 2011. http://ndltd.ncl.edu.tw/handle/49252948709914850219.

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碩士<br>國立交通大學<br>工學院工程技術與管理學程<br>99<br>The general chip manufacturer produces chips by a standard IC process flow with many level process steps. However, sometimes assembly house also provides more package services to fulfill different customer’s requests – They include a “Tape And Reel “package process adopted by SMT. equipment. Conventional chip package flow is composed of “Wafer to Chip” unit transformation process, testing process, picking die process, chip package process and “Tape and Reel” shipping steps, whereas modern wafer level package method is to dice wafer at the end of production

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26

Cheng, Chun-Wen, and 鄭鈞文. "Development and implementations of wafer-level process platform with various vacuum conditions for micro sensors integration." Thesis, 2017. http://ndltd.ncl.edu.tw/handle/f75m74.

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27

Lin, Ming-Nan, and 林明男. "The Business Opportunity of Wafer-Level Chip-Scale Packaging Technologies for Image Sensor - Case Study on Xintec Technology Company." Thesis, 2004. http://ndltd.ncl.edu.tw/handle/56066089754134727115.

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碩士<br>國立交通大學<br>管理學院碩士在職專班科技管理組<br>93<br>CMOS Iimage Sensor (CIS) is rapidly becoming the technology of choice for digital imaging in mobile phones and other portable digital consumer products, as it offers advantages in size, power consumption and system cost. This thesis probes into the emerging new CMOS packaging technology, the Wafer-Level Chip-Scale Packing (WL-CSP), which is most suitable for camera-ready mobile phones. The WL-CSP technology was patented by an Israely company, Shellcase Co., and Xintec. Co in Taiwan was the only Taiwanese company liscensed to use this technology.

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28

Asogwa, Clement Ogugua. "An intrabody signal propagation study for human body hydration." Thesis, 2016. https://vuir.vu.edu.au/33261/.

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Human body composition refers to the relative proportions of fat, bone, water, muscle and minerals in the body. Adequate proportions of these are a primary requirement for healthy living. Measurement of body composition is important for medical diagnosis and for understanding the physiological proportions of body tissues for physical fitness and exercise performance. Studies in human body hydration, as an example, provides the information necessary to understand the desired fluid levels for optimal performance of the body's physiological and metabolic processes during exercise and activitie

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