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Journal articles on the topic 'Rangefinder'

Author: Grafiati

Published: 4 June 2021

Last updated: 25 July 2025

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1

Golovkov, V. A., N. I. Potapova, P. N. Rudenko, B. G. Stradov, and S. V. Teliatnikov. "Receiving Unit of a Precision Pulsed Laser Range Finder." Journal of the Russian Universities. Radioelectronics 23, no. 2 (2020): 73–81. http://dx.doi.org/10.32603/1993-8985-2020-23-2-73-81.

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Introduction. At present the most accurate estimate of ranges is specific to laser range finders using phase measuring techniques. Design of a pulsed laser range finder with short probe pulses enabling one to gain high resolution and accuracy of estimate of target range close to the phase range finders is the topical problem.Aim. Development of a receiving part of the pulsed laser rangefinder with precision characteristics; determination of the accuracy of the measurements; description of the hardware.Materials and methods. The construction of the receiving part of the precision pulsed laser r

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2

Rudyk, Andrii, Andriy Semenov, Serhii Baraban, et al. "Influence of Environmental Factors on the Accuracy of the Ultrasonic Rangefinder in a Mobile Robotic Technical Vision System." Electronics 14, no. 7 (2025): 1393. https://doi.org/10.3390/electronics14071393.

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The accuracy of ultrasonic rangefinders is crucial for mobile robotic navigation systems, yet environmental factors such as temperature, humidity, atmospheric pressure, and wind conditions can influence ultrasonic speed in the air. The primary objective is to investigate how environmental factors influence the output signal of an ultrasonic emitter and to develop a method for improving the accuracy of distance measurements in both outdoor and indoor settings. The research employs a combination of theoretical modeling, statistical analysis, and experimental validation. The research employs an u

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3

Martin, Alexander. "Accuracy and Precision in Urban Forestry Tools for Estimating Total Tree Height." Arboriculture & Urban Forestry 48, no. 6 (2022): 319–32. http://dx.doi.org/10.48044/jauf.2022.024.

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Background: Urban tree inventories are fundamental to the monitoring and management of urban forests. Various handheld tools and methods exist to conduct tree mensuration, ranging from the simple stick method to laser rangefinders. This study examines the accuracy and precision of the stick method, clinometer, and laser rangefinder, and introduces tree type (i.e., conifer versus broadleaf) comparisons of accuracy and precision. Methods: Measurements were taken from 127 trees comprised of 85 (66.9%) broadleaf and 42 (33.1%) coniferous trees. Trees were distributed across 4 urban land use types:

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4

Ito, Kouhei, Akihisa Ohya, Naohiro Shimaji, and Takeshi Aoki. "Reduction of Distance Drift with Temperature in Uniaxial Laser Rangefinder by Using Multiecho Sensing." Journal of Robotics and Mechatronics 27, no. 1 (2015): 64–73. http://dx.doi.org/10.20965/jrm.2015.p0064.

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<div class=""abs_img""><img src=""[disp_template_path]/JRM/abst-image/00270001/08.jpg"" width=""300"" />Uniaxial laser rangefinder</div> To expand the range of activities by unmanned aerial vehicles (UAVs), whose use at disaster sites and other dangerous locations has raised high expectations, UAVs must be capable of several functions, e.g., flight both indoor and outdoor environments. This requires making the airframe and major sensors as compact and light-weight as possible. To do so, we are developing uniaxial laser rangefinders to replace conventional scanning laser range

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5

Pan, Jiong, Chenyu Bai, Qincheng Zheng, and Huikai Xie. "Review of Piezoelectric Micromachined Ultrasonic Transducers for Rangefinders." Micromachines 14, no. 2 (2023): 374. http://dx.doi.org/10.3390/mi14020374.

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Piezoelectric micromachined ultrasonic transducer (pMUT) rangefinders have been rapidly developed in the last decade. With high output pressure to enable long-range detection and low power consumption (16 μW for over 1 m range detection has been reported), pMUT rangefinders have drawn extensive attention to mobile range-finding. pMUT rangefinders with different strategies to enhance range-finding performance have been developed, including the utilization of pMUT arrays, advanced device structures, and novel piezoelectric materials, and the improvements of range-finding methods. This work brief

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6

Zhu, Hairong, Xiaoqiang Luo, Haoxin Bai, Yilan Zeng, and Suping Zhang. "Research on Internet of Things based Hand-Pushed Wheel Rangefinder Technology." Journal of Big Data and Computing 2, no. 2 (2024): 1–6. http://dx.doi.org/10.62517/jbdc.202401201.

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In order to address the accuracy issues of the hand-pushed wheel rangefinder, this paper proposes a solution that integrates IoT technology and angle sensors into the device to enhance accuracy and informationization level. A wheel rangefinder based on Internet of Things (IoT) technology is designed. The central control device of this system adopts a STM32 microcontroller. The system includes a voltage boosting and dropping circuit, a reset circuit, a gyroscope module, an indicator light module, and a Wireless Fidelity (WiFi) transmission module. The gyroscope module is designed to calculate t

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7

Multidisciplinary, Digital Publishing Institute (Switzerland). "Influence of Environmental Factors on the Accuracy of the Ultrasonic Rangefinder in a Mobile Robotic Technical Vision System." Electronics 14, no. 7 (2025): 1393. https://doi.org/10.3390/electronics14071393.

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The accuracy of ultrasonic rangefinders is crucial for mobile robotic navigation systems, yet environmental factors such as temperature, humidity, atmospheric pressure, and wind conditions can influence ultrasonic speed in the air. The primary objective is to investigate how environmental factors influence the output signal of an ultrasonic emitter and to develop a method for improving the accuracy of distance measurements in both outdoor and indoor settings. The research employs a combination of theoretical modeling, statistical analysis, and experimental validation. The research employs an u

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8

Len Keeler, M., and Keith A. Brugger. "A method for recording ice ablation using a low-cost ultrasonic rangefinder." Journal of Glaciology 58, no. 209 (2012): 565–68. http://dx.doi.org/10.3189/2012jog11j153.

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AbstractWe have adapted inexpensive ultrasonic rangefinders to measure ablation rates on the surface of a glacier. While ultrasonic rangers are commercially available for this purpose, our goal was to utilize rangefinders typically used in hobby robotics without significantly compromising performance. To correct for environmental factors that affect the speed of sound we use two ultrasonic rangefinders, one focused on a fixed target. Measurements of ablation correlate well with manual measurements with an uncertainty of about ±3 cm, suggesting an accuracy comparable with other non-manual metho

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9

Kobayashi, Hiroshi, and Hiroaki Obayashi. "Ultrasonic rangefinder." Journal of the Acoustical Society of America 84, no. 5 (1988): 1959. http://dx.doi.org/10.1121/1.397131.

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10

Kobayashi, Hiroshi, and Hiroaki Obayashi. "Ultrasonic rangefinder." Journal of the Acoustical Society of America 86, no. 2 (1989): 854. http://dx.doi.org/10.1121/1.398177.

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11

Xiang, Zhengrong, Lei Chen, Qiqi Wu, Jianfeng Yang, Xisheng Dai, and Xianming Xie. "An Improved UWB Indoor Positioning Approach for UAVs Based on the Dual-Anchor Model." Sensors 25, no. 4 (2025): 1052. https://doi.org/10.3390/s25041052.

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Ultra-wideband (UWB) technology has been widely used for indoor positioning of UAVs due to its excellent range performance. The traditional UWB positioning system requires at least three anchors to complete 3D positioning. Reducing the number of anchors further means reducing the cost and difficulty of deployment. Therefore, this paper proposes a positioning model using only two anchors. In this model, the altitude of the UAV is measured by a rangefinder. Then, the position of the UAV is projected onto the horizontal plane, converting 3D positioning into 2D positioning. The rangefinder’s range

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12

Wei, Li, and Chen Guang Zhao. "Study on Wireless Sensor Network Based on Laser Rangefinder." Advanced Materials Research 403-408 (November 2011): 2776–79. http://dx.doi.org/10.4028/www.scientific.net/amr.403-408.2776.

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A system of wireless sensor network(WSN) based on laser rangefinder is studied, which adopts low power consumption ZigBee chip and SimpliciTI network protocol. 8 laser rangefinders are used to collecy the distance of the test points. The collection data is sent to upper computer by wireless data transmission module. It is rapid and real time to monitor the test point. The system can be installed in complex test environment to perform the monitor of all kinds of architecture structure. It dispenses with long time power supply and the user interface is friendly and has abundance function.

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13

Abdulameer, Abdulkadhim Hussein. "DETECTION OF OBJECTS ON THE IMAGES OBTAINED FROM THE SPATIAL RANGEFINDER." SYNCHROINFO JOURNAL 9, no. 3 (2023): 9–13. http://dx.doi.org/10.36724/2664-066x-2023-9-3-9-13.

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Over the past few years, entire families of new recording devices have emerged that allow three-dimensional object tracking, localization, and surface reconstruction. This has led to an increase in a variety of practical applications. The most typical such application to date is digital three-dimensional models of the environment obtained using a variety of sensor devices such as ultrasonic, laser and infrared rangefinders. The analysis performed showed that the most effective procedure for identifying objects in spatial rangefinder images is the procedure based on the analysis of partial line

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14

Hayrapetyan, Yegisabet Hakob, and Stepan Karen Petrosyan. "Construction Features of The High-Precision Laser Rangefinder Light Modulator." Journal of Architectural and Engineering Research 1, no. 1 (2021): 26–31. http://dx.doi.org/10.54338/27382656-2021.1-5.

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The issues related to the development of a light modulator operating on the electro-optical effect of laser rangefinders by the modulation method are considered. To reduce the modulation power, it is proposed to lower the modulation frequency to 750-800 MHz, while simultaneously increasing the modulation quality to Q = 1000. The study of the phase determination error of a high-precision laser rangefinder depending on temperature showed that it is rational to construct the light modulator by radial installation of the KDP electro-optical crystal, with separated modulation and demodulation chann

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15

Ulyashin, A. F., A. А. Velichko, and A. N. Gallantich. "Study of Methods for Measuring Distances in Scanning Range." Herald of the Siberian State University of Telecommunications and Information Science 18, no. 2 (2024): 79–87. https://doi.org/10.55648/1998-6920-2024-18-2-79-87.

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The paper compares various methods for constructing laser emitters in pulsed semiconductor rangefinders. Two semiconductor laser emitters with a wavelength of 905 nm, which are part of a pulsed range finder, are considered. The optical scheme of the transmitting and receiving channels of the range finder consists of an aspherical lens and an objective. The difference between laser emitters is the presence of a built-in cylindrical lens in one of them. The results of measuring the distance to the target by a rangefinder with both options for constructing emitters under various conditions are de

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16

Fedorenko, A. V., I. O. Vorona, and V. P. Maslov. "Investigation of Ge p-i-n photodetector as a part of pulsed laser rangefinder prototype." Semiconductor Physics, Quantum Electronics and Optoelectronics 24, no. 1 (2021): 100–104. http://dx.doi.org/10.15407/spqeo24.01.100.

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The process of diffusion method for production of high-speed Ge p-i-n photodiodes for a laser rangefinder with a maximum photosensitivity at the wavelength 1.54 μm and a new passivating layer of ZnSe is described. Theoretical modeling of the rangefinder operation in real conditions was performed to determine the requirements for the sensitivity of the photodetector. The threshold sensitivity of the split photodetector as a part of the model of laser rangefinder was experimentally investigated. The correspondence between the calculated values and the sensitivity of the photodetector was ascerta

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17

Kovalev, S. V., and D. A. Shapovalov. "Kovalev passive rangefinder." Geodesy and Cartography 969, no. 3 (2021): 12–18. http://dx.doi.org/10.22389/0016-7126-2021-969-3-12-18.

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The authors present the results of longtime research on the development and improvement of a passive geodetic rangefinder based on the inbasis method of distance measurement. Actually, active laser range finders are not always effective at field works. An original compact optical scheme of a passive rangefinder based on a theodolite telescope and a mould photo receiver with application of digital methods for coordinate calculation is proposed. The distance and dimensions of the object are defined. The former is identified by the shift between the images on the horizontal axis. The merit of suc

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18

Petrosyan, H. S., and Ye H. Hayrapetyan. "Heterodyne light rangefinder." Geodesy and Cartography 931, no. 1 (2018): 14–19. http://dx.doi.org/10.22389/0016-7126-2018-931-1-14-19.

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In this paper, we consider the possibilities and ways to improve the accuracy of linear measurements and reduce modulation power, as well as their implementation in the construction of a new high-precision laser rangefinder. To do this, it is necessary to implement the transition to a new method of the modulation method that occurs when the operating point of the light modem goes over to the average linear portion of the modulation characteristic of light (MHS). In this case, the dependence of the amplitude-modulated reception light on the distance is characterized by a first-order Bessel func

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19

DeLeon, Andrew M. "Oral readout rangefinder." Journal of the Acoustical Society of America 91, no. 2 (1992): 1195. http://dx.doi.org/10.1121/1.402588.

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20

Obayashi, Hiroaki, Hiroshi Kobayashi, and Kiyoshi Takeuchi. "Ultrasonic vehicle rangefinder." Journal of the Acoustical Society of America 83, no. 4 (1988): 1710. http://dx.doi.org/10.1121/1.395894.

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21

Sadchenko, A. V., O. A. Kushnirenko, and E. K. Koshelev. "Anti-interference pulsed laser ranging system." Технология и конструирование в электронной аппаратуре, no. 1-2 (2020): 8–14. http://dx.doi.org/10.15222/tkea2020.1-2.08.

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Pulsed laser rangefinders prove to be cost-effective and practical devices when used at distances of several tens of kilometers due to their compactness, portability and energy efficiency. However, the measurement accuracy is significantly reduced by the presence of pulsed interference affecting the input of the optical receiver both during the sensing period and when the reflected signal is being received. Using the algorithms with the accumulation and subsequent processing of the results of several successive measurements reduces the speed of decision-making and does not guarantee the conver

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22

Cao, Zhifang. "Pulsed Optoelectronic Rangefinder and Its Measurement Applications in Architectural Design Rationality Assessment." Journal of Nanoelectronics and Optoelectronics 18, no. 10 (2023): 1211–20. http://dx.doi.org/10.1166/jno.2023.3498.

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The laser rangefinder is a device that combines various technologies such as optoelectronics, electronics, microcontroller control technology, signal control, processing technology, and precision mechanical technology. This device has wide application value in aerospace, automatic control, industry, military, geodesy, and construction surveying, among other fields. The pulse laser rangefinder designed uses the SPLLL90_3 laser emitting diode for the laser emission circuit and employs the AD500_9 laser receiving diode for the laser reception circuit. The design of the laser emission circuit incl

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23

Dzyubenko, M., I. Kolenov, V. Pelipenko, N. Dakhov, and A. Degtyarev. "Laser rangefinder of relatively eye-safe wavelength range." RADIOFIZIKA I ELEKTRONIKA 26, no. 1 (2021): 41–48. http://dx.doi.org/10.15407/rej2021.01.041.

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Subject and Purpose. The development and prototype making of a laser rangefinder operating in the 1.50…1.70 μm spectral region is reported. This wavelength region is attractive to both laser producers and laser users for, first of all, relative eye-safety of radiation. Methods and Methodology. The paraxial scheme of rangefinder construction is used, involving a software-controlled power supply of laser radiation with technical arrangements providing its adaptation to varying operating conditions. The alignment of the transceiver channels is provided with laser beam visualization methods. Resul

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Lubchenko, D. A., and A. V. Mazurkevich. "Laser Phase Rangefinders: Ways to Improve Accuracy." Measurement Standards. Reference Materials 19, no. 5 (2024): 59–70. http://dx.doi.org/10.20915/2077-1177-2023-19-5-59-70.

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Scientific and technological progress in the field of geodetic and industrial measurements in terms of the use of laser rangefinders operating in ranges up to 5000 meters has led to a reduction in the error of such measuring instruments over the past ten years by two or more times. Such rapid development of high-precision rangefinder technologies has led to a significant revision of the requirements for their metrological support, as well as to the need to develop a new generation of length standards, the stock of metrological accuracy of which would provide an assessment of the metrological c

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Gu, Youyi, Li Wang, Fengzhuo Xiang, Wen Ouyang, and Lixing Jiang. "Experimental Comparison of Outdoor Baseline Measurements by Different Methods." E3S Web of Conferences 131 (2019): 01057. http://dx.doi.org/10.1051/e3sconf/201913101057.

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Outdoor baseline is the special length standard in the field of surveying and mapping, it can be used to verify the addition and multiplication constants of the total station and other photoelectric rangefinders. In order to ensure the authenticity, accuracy and reliability of verification results, conducting outdoor baseline traceability periodically is essential. At present, direct measurement by 24m invar tape or high precision electro-optical measurement is mainly used to achieve the traceability of outdoor baseline in China. Based on Shenyang baseline field, high precision rangefinder μ-b

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26

Li, Ben, Shanjun Mao, and Hong Zhang. "Laser Attenuation and Ranging Correction in the Coal Dust Environment Based on Mie Theory and Phase Ranging Principle." Atmosphere 14, no. 5 (2023): 845. http://dx.doi.org/10.3390/atmos14050845.

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The inadequate ventilation and complex environments in underground coal mines lead to a high concentration of dust particles. As a result, the health of the miners and the accuracy of laser rangefinder measurements are endangered. It is crucial to enhance the laser rangefinder’s efficiency to mitigate health risks and reduce labor intensity. In this study, we propose a laser power attenuation model and a ranging correction model to address the issues of laser power attenuation and inaccurate ranging in coal dust environments. The proposed models are based on theoretical analysis and practical

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27

Hood, J. L., and M. Hayashi. "Assessing the application of a laser rangefinder for determining snow depth in inaccessible alpine terrain." Hydrology and Earth System Sciences Discussions 7, no. 1 (2010): 417–40. http://dx.doi.org/10.5194/hessd-7-417-2010.

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Abstract. Snow is a major contributor to stream flow in alpine watersheds and quantifying snow depth and distribution is important for hydrological research. However, direct measurement of snow in rugged alpine terrain is often impossible due to avalanche and rock fall hazard. A laser rangefinder was used to determine the depth of snow in inaccessible areas. Laser rangefinders use ground based light detection and ranging technology but are more cost effective than airborne surveys or terrestrial laser scanning systems and are highly portable. Data was collected within the Opabin watershed in t

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Hood, J. L., and M. Hayashi. "Assessing the application of a laser rangefinder for determining snow depth in inaccessible alpine terrain." Hydrology and Earth System Sciences 14, no. 6 (2010): 901–10. http://dx.doi.org/10.5194/hess-14-901-2010.

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Abstract. Snow is a major contributor to stream flow in alpine watersheds and quantifying snow depth and distribution is important for hydrological research. However, direct measurement of snow in rugged alpine terrain is often impossible due to avalanche and rock fall hazard. A laser rangefinder was used to determine the depth of snow in inaccessible areas. Laser rangefinders use ground based light detection and ranging technology but are more cost effective than airborne surveys or terrestrial laser scanning systems and are highly portable. Data were collected within the Opabin watershed in

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29

Brahynets, I. O., and Yu O. Masjurenko. "EFFICIENCY OF OPTICAL CALIBRATION IN HIGH PRECISION LASER RANGEFINDERS." Tekhnichna Elektrodynamika 2023, no. 5 (2023): 74–81. http://dx.doi.org/10.15407/techned2023.05.074.

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The effectiveness of the use of optical calibration in high-precision phase laser rangefinders has been evaluated. In order to ensure the specified accuracy of distance determination in order to establish the optimal frequency of distance measurement modes and optical calibration, an appropriate formula is recommended for estimating the switching frequency of signals at the input of the range finder measuring channel. It has been established that even when using optical calibration, the accuracy of distance measurement is affected by the error of the phase detector, which is part of the rangef

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Andrusenko, A. M., O. L. Sugachev, B. I. Tarakanov, and I. V. Lukin. "A standard rangefinder system." Measurement Techniques 33, no. 5 (1990): 441–44. http://dx.doi.org/10.1007/bf00864427.

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31

Xu, Wenbo, Xinhui Zheng, Qiyan Tian, and Qifeng Zhang. "Study of Underwater Large-Target Localization Based on Binocular Camera and Laser Rangefinder." Journal of Marine Science and Engineering 12, no. 5 (2024): 734. http://dx.doi.org/10.3390/jmse12050734.

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Currently, for underwater close-range large-target localization, visual localization techniques fail since large targets completely occupy the camera’s field of view at ultraclose ranges. To address the issue, a multi-stage optical localization method combining a binocular camera and a single-point laser rangefinder is proposed in this paper. The proposed method comprises three parts. First, the imaging model of the underwater camera is modified, and a laser rangefinder is used to further correct the underwater calibration results of the binocular camera. Second, YOLOv8 is applied to recognize

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32

Zelenskiy, V. A., and M. V. Kapalin. "Laser-scanning rangefinder fixed on a gimbal with two degrees of freedom." VESTNIK of Samara University. Aerospace and Mechanical Engineering 20, no. 3 (2021): 37–48. http://dx.doi.org/10.18287/2541-7533-2021-20-3-37-48.

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A laser-scanning rangefinder mounted on a gimbal with two degrees of freedom is presented. The rangefinder can be used as part of a navigation system of an unmanned aerial vehicle to avoid obstacles or prevent collisions. Compared to stereo cameras, the device requires significantly less computing resources and is less dependent on lighting conditions. Compared to integrated lidars, the cost of the device is by an order lower. А model of the device was developed and an obstacle avoidance flight was simulated in the Gazebo simulator. The PX4/Avoidance software was used as an autopilot. As a res

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Hayrapetyan, Yegisabeth, Hovseph Petrosyan, Hovnan Hunanyan, and Artyom Tsaturyan. "High-precision two-phase laser rangefinder PFSD-1,2." E3S Web of Conferences 97 (2019): 06042. http://dx.doi.org/10.1051/e3sconf/20199706042.

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Performing high-precision linear measurements is one of the main tasks of modern engineering geodesy. Consequently, the development and creation of high-precision laser rangefinders and refractometers with a relative measurement error of not more than 3.10-7, becomes an urgent scientific and technical problem. Wide theoretical and experimental studies in the problem laboratory of geodetic measurements of NUACA have accumulated a sufficient amount of experimental results for the construction of modern high-precision light meter with the determination of the residual part of the phase cycle with

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Iwakura, Daisuke, Wang Wei, Kenzo Nonami, and Mark HALEY. "A17 Pinpoint Landing of Quad-rotor MAV Using IR Rangefinder and Ultrasonic Rangefinder." Proceedings of the Symposium on the Motion and Vibration Control 2009.11 (2009): 185–90. http://dx.doi.org/10.1299/jsmemovic.2009.11.185.

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МОСПАН, АНТОН, та ЮРІЙ КИРИЧУК. "МЕТОД ПОБУДОВИ ПЛОСКОЇ КАРТИ НАВКОЛИШНЬОГО ПРОСТОРУ ДЛЯ МОБІЛЬНОЇ РОБОТИЗОВАНОЇ СИСТЕМИ". Herald of Khmelnytskyi National University. Technical sciences 329, № 6 (2023): 243–46. https://doi.org/10.31891/2307-5732-2023-329-6-243-246.

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The paper proposes a method of building a local map of a mobile robot, which allows determining the position of objects in space with the help of a laser range finder. In addition, the accuracy parameters of the specified method of building an environment map were analyzed, which allows for the formation of requirements for hardware for controlling a mobile robot. It is assumed that the initial map is known and during the work (the movement of the robot) it is only clarified and supplemented. The main sensors used are odometers (wheel speed sensors) and a laser scanning range finder (lidar), w

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Aryal, Suchana, Prashant Paudel, Sandesh Bolakhe, Deepak Mahatara, and Prakash Lamichane. "Evaluation of error and efficiency on tree height measurement using Abney’s level, Rangefinder and Vertex IV." Indian Journal of Forestry 45, no. 1 (2022): 1–8. http://dx.doi.org/10.54207/bsmps1000-2022-49p4f8.

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Tree height is one of the basic variables which is used for estimation of growing stock, biomass, carbon stock and site quality. Measuring tree height is expensive, time-consuming, and error prone due to stand structure and efficiency of measuring instruments. Here, we try to explore the errors and efficiencies associated with Vertex, Abney’s level, and Laser Rangefinder for tree height measurement. Standing tree height was measured using all three instruments and the true height was determined with the careful measurement using linear tape after felling. In total 102 trees of Arunkhola commun

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OHTANI, KOZO, YOSHIKO SHINHARA, MITSUO KIDO, and MITSURU BABA. "MEASUREMENT OF THE SURFACE CONDITION OF A THERMALLY SPRAYED MATERIAL AND ITS THREE-DIMENSIONAL POSITION USING A LASER RANGEFINDER." Modern Physics Letters B 22, no. 11 (2008): 887–92. http://dx.doi.org/10.1142/s0217984908015553.

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This paper describes that a measurement method for the surface condition of a thermally sprayed object and its three dimensional position with a laser rangefinder. The feature of this rangefinder is to equip an image sensor which has the ability of simultaneously detecting the position of a light and the incident angle onto the sensor. Moreover, the sensor has an autonomous exposure time control function. Therefore, our laser rangefinder can detect the 3D positions of an object with unknown reflectance. We constructed the prototype system and did some experiments to verify the proposed method.

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Bia, Jian Pu, and Mei Xia Gao. "Design of Ultrasonic Rangefinder Controlled by Single Chip Microcomputer." Applied Mechanics and Materials 599-601 (August 2014): 1470–73. http://dx.doi.org/10.4028/www.scientific.net/amm.599-601.1470.

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This paper discusses the ultrasonic rangefinder car reversing system working principle based on single chip microcomputer control. Ultrasonic ranging module HC-SR04 is called to transmit and receive ultrasound by single chip computer, temperature is detected through the DS18B20 temperature sensor, the compensation of ultrasonic velocity influenced by temperature is done, and the display and alarm of distance and temperature are achieved by combining with the peripheral circuit module. On the basis of system hardware design, system software is designed and analyzed in detail. At present, traffi

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Cheng, Wei Dong, and Li Song Zhang. "Ultrasonic Rangefinder Based on P89LPC932." Applied Mechanics and Materials 214 (November 2012): 867–71. http://dx.doi.org/10.4028/www.scientific.net/amm.214.867.

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In order to overcome the limitation, some traditional distance measurement methods in some special occasions go beyond measure flaw. This design centres on P89LPC932 and realizes non-contact air measurement by use of an ultrasonic sensor, which fully considers the close relationship of velocity and temperature, thus temperature compensation, further get measurement distance about 700cm, optimal precision at 1%. This design has some features, such as the strong anti-jamming capability, simple installation, small size, low power consumption, easy to embed in other system.

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40

Senik, B. N. "Color night-vision imaging rangefinder." Journal of Optical Technology 88, no. 9 (2021): 508. http://dx.doi.org/10.1364/jot.88.000508.

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41

Becketti, Sean, and William Gould. "Rangefinder Box Plots: A Note." American Statistician 41, no. 2 (1987): 149. http://dx.doi.org/10.2307/2684233.

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Hayrapetyan, Ye H., H. S. Petrosyan, and H. A. Hunanyan. "Light rangefinder of “0” class." IOP Conference Series: Materials Science and Engineering 698 (December 18, 2019): 033051. http://dx.doi.org/10.1088/1757-899x/698/3/033051.

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43

Seidel, Robert W. "Rangefinder Caption Misses the Mark." Physics Today 42, no. 3 (1989): 157. http://dx.doi.org/10.1063/1.2810958.

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44

Becketti, Sean, and William Gould. "Rangefinder Box Plots: A Note." American Statistician 41, no. 2 (1987): 149. http://dx.doi.org/10.1080/00031305.1987.10475467.

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45

Leach, Jeffrey H., Stephen R. Chinn, Lew Goldberg, and Scott A. Mathews. "Monostatic all-fiber rangefinder system." Applied Optics 54, no. 25 (2015): 7687. http://dx.doi.org/10.1364/ao.54.007687.

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46

Ifland, Peter. "Finding Distance – The Haecke Rangefinder." Journal of Navigation 55, no. 2 (2002): 323–33. http://dx.doi.org/10.1017/s0373463302211856.

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This article is the second in a series dealing with the hand-held instruments and techniques navigators have used to find distance.Warships frequently steam in tight formation in order to concentrate defensive gunfire. It is the Conning Officer's responsibility to keep his ship on station at an assigned range and bearing from the guide ship, usually the flagship of the Senior Officer Present Afloat. This can be an easy task when the fleet is steaming along peacefully, but it becomes a particularly challenging responsibility when the formation is changing course frequently under battle conditio

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Woodward, B. "A self‐calibrating diver’s rangefinder." Journal of the Acoustical Society of America 77, no. 3 (1985): 1000–1002. http://dx.doi.org/10.1121/1.392365.

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Tomaštik, Julián, and Daniel Tunák. "COMPASS MEASUREMENT – STILL A SUITABLE SURVEYING METHOD IN SPECIFIC CONDITIONS." Geodesy and Cartography 41, no. 1 (2015): 31–40. http://dx.doi.org/10.3846/20296991.2015.1011863.

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The compass measurement is one of the customary surveying methods that is used almost from the beginning of systematic geodesy and cartography. After the periods of the decreased use of this method, it was partially renewed by the ascension of the Field-Map technology that connects the compass measurement with the software tools for the environment mapping. It is currently mostly used for the forestry under-canopy mapping and other special tasks, where the current progressive technologies, especially photogrammetry and GNSS, can be used only with complication. The Field-Map set can include eit

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Wang, W. C. "Design of Optical System for Laser Rangefinder." Advanced Materials Research 187 (February 2011): 581–85. http://dx.doi.org/10.4028/www.scientific.net/amr.187.581.

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The principle and classes of grating sensors are analyzed in this paper firstly. To the high-precision requirement of rangefinder for the measurement of high voltage cables, the design method based on grating sensor is proposed. It is realized by installing two grating sensors on the rangefinder platform which are used for outputting the elevation angle and the horizontal angle. The subdivision circuit of system is described in detail by using E-subdivision algorithm. Experiment shows that it can increase the measure precision greatly.

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Badcock, J. M., and R. A. Jarvist. "Wire-frame modelling of polyhedral objects from rangefinder data." Robotica 12, no. 1 (1994): 65–75. http://dx.doi.org/10.1017/s0263574700018208.

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Methods are described for computer analysis of image-data from a coded-stripe rangefinder. The main objective is to find vertex coordinates and connectivity information for a polyhedral object, enabling it to be represented by a wire-frame model. For each of several rangefinder viewpoints, the data is processed to extract three-dimensional edge and vertex positions. The emphasis is on estimation techniques that make good use of fairly sparse data-points. Results from different viewpoints are merged to produce a 3D model of the object.

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