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Setting New Standards In Electro-Optical Testing

Choppers

A variable frequency radiation modulator, the SR-600 is a high performance chopper for many applications, including IR jammer simulation and low-level radiation detection. Designed to be robust and flexible, the SR-600 uses interchangeable blades for various chopping frequency ranges. The SR-600 can be used as a stand-alone unit or mounted to other CI products, such as

the SR-200 cavity blackbodies or the ILET collimator.

User-friendly software is installed that enables the user to perform the desired tasks easily.

FeaturesSpecificationsModels
  • Certified to CE
  • Closed loop control
  • 1 to 20,000Hz chopping frequency
  • TTL reference signal output
  • Built-in test

 

Frequency range        

1 to 20,000 Hz (using interchangeable blades)

Option: 0.2-0.9Hz

Frequency readout accuracy

1-10,000Hz: ±0.2Hz

10-20KHz: ±0.5Hz

Display Resolution

1 Hz, digital

Chopper reference signal

Square wave, TTL compatible

Computer control

GPIB, RS232, Ethernet

Motor

Direct current with optical encoder

Type of control

Closed loop with optical encoder feedback

Power supply

230/115 VAC, 15 Watt, 50/60 Hz

Blade Model

Blade Frequency
[range -Hz]

 Stability

Maximum Usable 
ApertureDia. [mm]

SC - slow chopper (+ C2 blade)

0.2 - 0.9,1-250

0.1%, Min 0.2 Hz 

25.4

C-2

1-250

0.1%, Min 0.2 Hz 

25.4

C-8

10-1,000

0.1%, Min 0.2 Hz 

22.2

C-16

10-2,000

 0.1%, Min 0.2 Hz

9.5

C-40

10-5,000

 0.1%, Min 0.2 Hz

3.2

C-80

10-10,000

 0.1%, Min 0.2 Hz

1.6 

C-160

100-20,000

 0.1%, Min 0.2 Hz

0.8

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