Frequently Asked Questions about Laser Doppler Vibrometer

The LV-1700 series detects vibration velocity (m/s) in its standard configuration. Therefore, it is designed to output only the AC component as an analog voltage signal through the HPF. However, as it stands, DC detection is not possible, so when measuring the speed of the stage under trapezoidal control, the output drops when the stage speed becomes constant.
By enabling DC compatibility, it becomes possible to observe the correct speed waveform even when the stage speed is constant.