LI 5640 Multifunction Digital Lock-in Amplifier
LI 5630 Digital Lock-in Amplifier

NF's experienced technique utilizes fully a high speed computing function of Digital Signal Processor, and designs DSP Lock-in Amplifiers for easier operation, cost performance , also with improving high speed and out put stability of setting or measurement response.

Features

• High stability based on digital processing
  Phase stability : 0.01°/°C
  Gain stability : 100ppm/°C
• Measurement from 1mHz is available
  Low speed signal analysis is possible like infrared spectrum, temperature response etc.
• High speed and smooth response
  Constant at minimum time 10µs, Synchronized filter provided, Quick response to setting change.
• Simple and assured operation to sophisticated measurement
  Auto function, Key allocation, Large indicating, window, Analog meters, and Modify dial are provided.
• Two models lined up
  Fulfilled Multi-function Digital Lock-in Amplifier : LI 5640
  Simplified and cost-performance : LI 5630

LI 5640 vs LI 5630 Function LI 5640 LI 5630 Input Voltage input yes yes Current input yes --- Reference signal Internal, External, signal External Output Measurement items X, Y, R, , NOISE, AUX IN X, Y, R, Value, Meter, External DC output Double output Single output X, Y, R,  renewal rate 256k sample/s 256k sample/s Internal Oscillator yes ---

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