4-位移传感器

The
displacement sensor is an excellent tool. It is particularly necessary to develop more superior displacement sensors for more wide uses.
Thank you!
Principle
The
grating moire fringe phenomenon is used to measure the displacement of the angle. The size of main grating is consistent with the measurement range. By measuring the thickness change of the moire fringes, we can calculate the displacement change of the angle.
Application
Train wheel rim detector
It is used for routine testing and maintenance of the wheels. It realizes the precise inspection of the train wheel flange state and digital management.
Summary
Introduction
Displacement
sFra Baidu biblioteknsor is also called linear sensor. The role of the sensor is to convert various physical quantities into electricity, so that it can be tested. Displacement sensor can be divided into analog and digital sensors.
❀ Photoelectric displacement sensor
Application
Hydraulic elevator
It is used for controlling the speed of elevator by detecting the displacement and ensuring a smooth stop after you arrive the floor.
Development
Classic displacement sensor
The 1980s
Semiconductor displacement sensor
Principle
The main grating Indicative grating
Photoelectric device
Output Light source
Measurement garting
Moire fringes
Category
According
to motion mode
❀ Linear displacement sensor
❀ Angular displacement sensor
According
to the material
❀ Hall displacement sensor
Name: Rutong ZHAO Number: S15040481 Major: Information and Communication Engineering
Contents
1.
Introduction
2.
3. 4.
Development
Principle Category
5. Application 6.
Application
Hydraulic cylinder
The hydraulic cylinder displacement sensor precisely controls water level and ensures rate of flow to obtain steady current.
Collecting lines
The main grating is connected to the object that is to be measured. It is moved with the linear displacement of measured object. When the main grating produces displacement, moire fringe will accordingly change.
Summary
The
displacement detection system often affects the performance of the whole system. So we have to choose the best displacement sensor according to different situations.