Request InfoZurich Instruments AGZurich instruments just added the MF-PID option with 4 independent PID (proportional - integral - derivative) controllers to their MFLI, a 500 kHz / 5 MHz lock-in amplifier. The MF-PID option builds on class-leading specifications of the MFLI such as low input noise of 2.5nV/√Hz and a high dynamic reserve of 120 dB. Each controller is seamlessly integrated with the lock-in amplifier, using inputs from a multitude of internal measurement data and analog input signals. The maximum control loop bandwidth is 50 kHz. 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