Optical Chopper

Choppers are used to modulate optical radiation for fast and very sensitive measurements of the optical power in combination with pyroelectric detectors, especially in the THz region

It's possible to set target frequency by keypad or USB-port. The actual frequency is displayed by a large alphanumerical LCD display and is also sent to the USB port. The chopper automatically detect the number of slots of the disc to calculate rigth correlation between frequency and motor speed

Data

Diameter chopper disc

100 mm

Frequency range

5 - 1200 Hz
depends of chopper disc

Accuracy

< 1%

Display

16 characters
10 mm high