Description: The MC1000 optical chopper features microprocessor control and a crystal stabilized phase-locked loop motor control for ultimate chopping stability and drift-free performance. The standard 10-slot (36°) chopper blade is capable of chopping from 25hz to 1khz. Optional blades extend the chopping frequency range.
The external reference input allows the MC1000 to precisely lock in phase and frequency to an external reference signal such as lock-in amplifiers and multiple chopper configurations.
By setting the easy-to-use controls, the MC1000 can be programmed to chop at a harmonic or sub-harmonic of the reference signal. An optional 2-frequency blade with 7 outer slots and 5 inner slots allows the mc1000 to be used in pump-probe and other non-linear experiments. The sum and difference reference frequencies are provided for use with lock-in amplifiers.
Multiple configurations can be easily saved and recalled from non-volatile ram for quick set-ups. An RS-232 serial interface allows all of the MC1000 features to be controlled remotely.
This system has the following features:
25Hz to 1kHz Chopping with One Blade (MC1F10 - Standard Blade)
Reference Output Phase Continuously Adjustable (-p to +p)
Crystal Stabilized Phase-Locked Loop for Low Drift
Low Phase Jitter - 0.2° RMS at 1kHz
2 Frequency Blade Available for Pump-Probe and Other Non-Linear Experiments
Phase and Frequency Lock on External Reference
Harmonic and Sub-Harmonic Chopping with SUM and Difference Reference Outputs
Microprocessor Controlled
Low Frequency Drift < 100 ppm
Save and Recall User Setups in Non-Volatile RAM
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