Teching system of distance measure with laser phase
Purpose of the experiment and related subjects:
Electro-optical properties of semiconductor lasers and the basic principles of laser modulation.
Grasp the basic principle and approach of laser phase ranging..
The significance and methods of multi-wavelength measurement.
Performance, working principle and characteristic of avalanche diode.
Features of the instruments:
Large measuring range can be obtained by using higher laser power.
The combination of multiple modulation frequencies (measure wavelength) can increase the measurement range and accuracy.
Built-in phase meter.
Complete set of equipment:
Experiment host, test track, 25mW laser diode, lens,. avalanche diode probe, oscilloscope (self-contained) and etc.