Precision measurement method of manual displacement platform

According to the different measurement principles, we can divide the measurement methods of high-precision manual displacement platform into laser triangulation method and laser echo analysis method, which are suitable for high-precision, short-distance measurement and long-distance measurement respectively. Users can choose according to their own needs. In the following, we have sorted out the relevant content of laser triangulation method and laser echo analysis method:

1. Laser triangulation

The high precision manual displacement platform shoots the visible red laser on the surface of the object to be detected through the lens, and then the laser reflected by the object is transmitted to the internal CCD linear camera through the lens of the receiver. Depending on the distance, the CCD linear camera is able to capture this spot of light at different angles. From this Angle, and the known distance between the camera and the laser, the digital signal processor can accurately calculate the distance between the sensor and the object being detected.

At the same time, the receiving element position of the beam through digital circuit and analog processing, and through the microprocessor analysis, can get the corresponding output value, and in the user set analog window, according to the proportion of the output standard data signal. If using switch quantity output, then in the set window conduction, otherwise the cut-off. In addition, both analog and switch output support setting independent detection Windows.

2. Laser echo analysis

High precision manual displacement platform to achieve a certain degree of accuracy can use the principle of echo analysis to measure the distance. Processor unit, echo processing unit, laser emitter and high precision manual displacement platform are the main components of the high precision manual displacement platform. High precision manual displacement using laser emitter in a second firing one million laser pulse to detect objects, and back to the receiver, processor computing laser pulse in the time needed for detecting objects and back to the receiver, so as to accurately calculate the distance value, the output value is to thousands of times the average of the measurement results of the output. It's called the pulse time method.