OVERVIEW

The SR865A 4MHz is based on the SR830. It locks the specific frequency and phase in the circuit, filters out other noise, and measures the correct signal. The lock - in amplifier is an instrument used to measure weak signals and make them reappear. The SR865A 4MHz lock - in amplifier has some analog improvements and enhanced functions, and also adds many new functions that many instruments do not have. The touch - screen display can immediately display the measurement results and can also completely record the data. The SR865A 4MHz lock - in amplifier is easier to operate - all instrument functions have dedicated buttons and knobs, making the operation more convenient.

The SR865A 4MHz lock - in amplifier can measure weak signals in harsh synchronous detection applications.

● The FPGA design provides a very wide frequency range (0.001Hz to 4MHz)

● High dynamic range (>120dB)

● Excellent stability (<5ppm/°C)

● High phase resolution (0.1μDeg.)