Results 11 to 20 of about 25,329 (253)
Frequency Sweep Keying CDMA for Reducing Ultrasonic Crosstalk
Various sensors are embedded in automobiles to implement intelligent safety technologies such as autonomous driving and front–rear collision avoidance technology.
Ga-Rin Park +2 more
doaj +1 more source
Development of Localized 3D-Printed Ultrasonic Wind Anemometer with Cloud Data Transfer and Storage
The core aspects to characterize the wind condition of the environment around us are direction and speed, simply the value of velocity. This encourages the researchers to address the lack of locally fabricated ultrasonic anemometers available in the ...
Jewel Leila Mae A. San Pedro +4 more
doaj +1 more source
Securing Ultrasonic Sensors Against Signal Injection Attacks Based on a Mathematical Model
Ultrasonic sensors are used across a variety of industrial areas, as they measure distance simply via calculating the difference of time between transmission and reception of signals. However, recently, attackers have been targeting ultrasonic sensors to
Sunwoo Lee, Wonsuk Choi, Dong Hoon Lee
doaj +1 more source
Ultrasonic Detection Sensor of Digital Distribution Network Based on EFPI
In order to meet the demand of partial discharge ultrasonic signal detection of digital distribution network equipment, an ultrasonic sensor based on extrinsic Fabry Perot interferometric (EFPI) is developed to detect the ultrasonic signal generated by ...
Ling JU, Yi HUANG
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A Study of Ultrasonic Sensors to Intelligent Estimation of Tree Canopy Volumes
Many research projects have been conducted about using ultrasonic sensors to estimate canopy volume. This study investigates using software applications such as artificial neural network (ANN) to improve the estimation of canopy volume by using ...
M Eskandari, A Hosainpour
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Optimization of Piezoelectric Flexible Ultrasonic Sensors Based on Backing Layer Matching [PDF]
Even with the advantages of small size, light weight, and easy matrixing, flexible ultrasonic sensors based on polyvinylidene fluoride (PVDF) piezoelectric film are susceptible to back clutter and impedance mismatching, resulting in a complex frequency
YU Yongjie +3 more
doaj +1 more source
Electronic canopy characterization to determine structural properties is an important issue in tree crop management. Ultrasonic and optical sensors are the most used sensors for this purpose. The objective of this work was to assess the performance of an
H Maghsoudi +3 more
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Development of distance glove for blind people as an alternative tool
The eye was one of the senses that functions to record a state or condition so that humans could know the object they see. However, not all humans were created with normal eye conditions; some had visual disturbances from birth.
Nugroho Prasetya Adi, Rahayu Agustin
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An Ultrasonic Transmission/Reflection Mode Tomography for Two-Phase Flow Measurement [PDF]
Ultrasonic process tomography obtains the distribution of the two-phase flow based on ultrasound propagation in different fluids, thus is valuable to industrial monitoring and measurement.
Omid Qorbani, Esmaeil Najafiaghdam
doaj +1 more source
Performance of an Ultrasonic Ranging Sensor in Apple Tree Canopies
Electronic canopy characterization is an important issue in tree crop management. Ultrasonic and optical sensors are the most used for this purpose. The objective of this work was to assess the performance of an ultrasonic sensor under laboratory and ...
Alexandre Escolà +8 more
doaj +1 more source

