Main characteristics of laser interferometer

The laser interferometer has high precision, wide measuring range, high measuring speed and high resolution at high speed. Combining with different optical lens groups, high-precision measurement of geometric parameters such as line length, angle, straightness, verticality, parallelism and flatness can be realized; With the dynamic measurement software, the dynamic measurement and performance detection of linear displacement, angle and straightness can be realized, as well as the dynamic analysis of displacement, speed, acceleration, amplitude and frequency, such as vibration analysis, dynamic characteristics analysis of lead screw guide rail and response characteristics analysis of drive system.

1. High accuracy

Using laser double longitudinal mode thermal frequency stabilization technology, the laser frequency output with high precision, strong anti-interference ability and good long-term stability can be realized, and the precision can reach nanometer level, and the small changes of parallelism and verticality can be accurately measured.

2. No contact

There is no need to touch the measured object, which will not affect the measured object and will not cause errors due to wear.

3. Fast and stable

Using high-speed interference signal acquisition, conditioning and subdivision technology, the measurement speed of 4m/s and nano-resolution can be achieved, and the measurement speed is very fast; Moreover, the interference mirror is designed separately from the host computer, which avoids the influence of the interference mirror on heat, and the interference optical path is stable and reliable, ensuring long-term stable measurement.

4. Wide application range

Laser interferometer can detect the linear positioning accuracy, repetitive positioning accuracy, pitch angle, torsion angle, straightness and verticality of the guide rail of precision motion equipment such as CNC machine tools and CMM.