Optical Choppers

       Optional Open Blade
The C-995 Phase-Locked Loop Optical Chopper

The C-995 phase-locked-loop optical chopper incorporates Direct Digital Synthesis in order to provide rock-solid, crystal controlled accuracy and stability. Its chopping frequency can be controlled to a precision of .001 Hz and has effectively zero frequency drift. A large, five digit LED display indicates the internally set chopping frequency, or in the External Sync mode, the measured frequency of the external clock signal.

 Key Benefits

• Provides chopping rates from 4.000 Hz to 5000 Hz without the need to change blades
• The unit may be computer controlled via its bi-directional serial port
• May be phase-locked to an external clock source
• Enclosed blade for minimum windage and noise
• Or exposed blade for maximum flexibility on a crowded optical bench
• Operates from 95 to 260 VAC, 50-60 Hz
• Optional reflective blades available (contact factory)

Download free Windows application for computer control of the C-995 Optical Chopper.

Other Radiometric products

Photodiode Amplifier  -  Transimpedance Photodiode Amplifier measures from 1 pA noise level to 20 mA, available with or without Planar-Diffused Photodiode with bracket and adjustable stand. Rs-232 bi-directional port for control and data logging. Displays in units of Amps or Watts

Laser Safety Eyewear  -  Wide variety of glass and polycarbonate laser safety glasses

Send mail to sales@terahertztechnologies.com with questions or comments about this web site.
Last modified: 09/26/06