Displacement Measurement for High Speed Tribological Measurement Using Oscillating Optical Fiber Probe

Measurement of Displacement of Optical Fiber Using Light Intersection Method

Connecting method of optical fibers by V-shaped groove is used in various fields. And in this met,hod, i t is important to estimate distortion of a fiber, because a distortion of the optical fiber influences a connection characteristics. We developed measurement technique of a n optical fiber distortion using Light Intersection Method and optimized incidence angle of the laser beam on a Sample ...

Design and Simulation of piezorestive pressure sensor for AFM Probe the displacement measurement

investigating pressure applied in surface vertically that is done by use of mechanical procedures isn’t efficient to measure pressure applied in inner surface of reservoir or pipes having gas due to entering pressure into whole walls and different surfaces. So, in order to measure this kind of pressure, several studies were conducted in past decades and also various procedures were proposed tha...

Multipoint Temperature Measurement Technology using Optical Fiber

Energy consumption in data centers is increasing dramatically as the information technology (IT) infrastructure provides higher speeds and capacities and the deployment of IT equipment expands. In a data center, the percentage of energy consumed by air conditioning is high at about 40%, and reducing this energy use has become a major issue against the background of global warming. To make detai...

Wholefiled Optical Metrology: Surface Displacement Measurement Wholefield Optical Metrology: Surface Displacement Measurement

Speed Measurement by Optical Techniques

The most obvious optical method for measuring the speed of a moving object is to use the Doppler effect: light reflected from the moving object will be shifted in frequency on proportion to the line of sight velocity of the object. While we are familiar with examples in the radio domain (such as police traffic radar and Doppler weather radar) and with acoustic waves (the apparent change in pitc...