نتایج جستجو برای: ultrasonic sensor

تعداد نتایج: 215187  

2016
Yonggang Jiang Jian Li Zhiwen Zhou Xinggang Jiang Deyuan Zhang

Single-crystal silicon carbide (SiC)-based pressure sensors can be used in harsh environments, as they exhibit stable mechanical and electrical properties at elevated temperatures. A fiber-optic pressure sensor with an all-SiC sensor head was fabricated and is herein proposed. SiC sensor diaphragms were fabricated via an ultrasonic vibration mill-grinding (UVMG) method, which resulted in a smal...

2017
Aleksandr Oseev Ralf Lucklum Mikhail Zubtsov Marc-Peter Schmidt Nikolay V. Mukhin Soeren Hirsch

The current work demonstrates a novel surface acoustic wave (SAW) based phononic crystal sensor approach that allows the integration of a velocimetry-based sensor concept into single chip integrated solutions, such as Lab-on-a-Chip devices. The introduced sensor platform merges advantages of ultrasonic velocimetry analytic systems and a microacoustic sensor approach. It is based on the analysis...

1999
Arnaud Clerentin Claude Pégard Cyril Drocourt

In this paper, an omnidirectionnal range sensor is reported. This active vision sensor combines a CCD camera and a laser diode. We use two methods to obtain the depth of the scene: a calibration method and a least square method. We describe the prototype we made. Experimental results are presented. A comparative test shows that this sensor seems to be as accurate as a laser telemeter but less s...

Journal: :International Journal of Bio-resource and Stress Management 2015

Journal: :Journal of Physics: Conference Series 2018

Journal: :The Journal of the Acoustical Society of America 1992

Journal: :Transactions of the Society of Instrument and Control Engineers 1989

2008
D Isa R Rajkumar

Ultrasonic sensors are ideal for non-destructive testing due to its many advantages over conventional sensors. Oil and gas pipelines are an area which uses ultrasonic sensors for monitoring and detecting the presence corrosion and defects. The proposed techniques ultimately aims at providing a continuous monitoring system using an array of ultrasonic sensors strategically positioned on the surf...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید