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Optical Chopper
The SR540 chopper will handle all your optical chopping requirements—from simple measurements to dual-beam and intermodulation experiments. The SR540 has a 4-digit frequency display, front-panel frequency control, analog voltage frequency control and two reference outputs with ...
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SRS SR540 Low Jitter Optical Chopper System
- 4 Hz to 3.7 kHz chopping frequencies
- Low phase jitter
- Single and dual beam experiments
- Sum & difference reference outputs
- Bolt clamp or rod mounting
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SRS SR555 Current Preamplifier
Low noise current preamplifier for lock-ins
- 10V/µA fixed gain
- 120 kHz bandwidth
- Bias voltage input
- Powered by SRS lock-in amplifiers
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SRS SR556 Current Preamplifier
Ultra low noise current preamplifier for lock-ins
- 1 V/nA fixed gain
- 5 fA/√Hz input noise
- Bias voltage input
- Powered by SRS lock-in amplifiers
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