Lock-In Amplifiers LIA-MV(D)-200

Features

  • Single and dual phase
  • Rugged aluminium housing
  • BNC connectors for input and output signals
  • Working frequency 5 Hz up to 120 kHz
  • Phase shifter 0° ... +360°
  • Current and voltage input
  • Optional reference oscillator module SOM-1 available
lock-in amplifier FEMTO LIA-MVD-200-L
Model LIA-MV-200-L Single phase LIA-MV-200-H Single phase LIA-MVD-200-L Dual Phase LIA-MVD-200-H Dual Phase
Working Frequency 5 Hz ... 10 kHz 50 Hz ... 120 kHz 5 Hz ... 10 kHz 50 Hz ... 120 kHz
Time Constants 3 ms - 10 s 6 or 12 dB/oct. 300 µs - 1 s 6 or 12 dB/oct. 3 ms - 10 s 6 or 12 dB/oct. 300 µs - 1 s 6 or 12 dB/oct.
Adjustable Signal Filter [6 dB/Okt.] Highpass 0.2 Hz – 1 kHz Lowpass 100 Hz – 1 MHz Highpass 2 Hz – 10 kHz Lowpass 100 Hz – 1 MHz Highpass 0.2 Hz – 1 kHz Lowpass 100 Hz – 1 MHz Highpass 2 Hz – 10 kHz Lowpass 100 Hz – 1 MHz
Outputs (BNC) X = In Phase, ±10 V full scale, short circuit proof, signal monitor output X = In Phase, Y = Quadrature, R = Magnitude, ±10 V full scale, short circuit proof, signal monitor output
Sensitivity (Full Scale) Voltage: 3 µV – 1 V in 1-3-10 steps Current: 30 pA – 10 µA in 1-3-10 steps
Voltage Input (BNC) Instrumentation amplifier, noise 12 nV/√Hz
Current Input (BNC) Transimpedance amplifier, gain: 100 kV/A, noise: 0,4 pA/√Hz
Reference Input (BNC) ±100 mV to ±5 V, switchable to TTL
Phase Adjustable 0° - 360°; resolution: 8-bit @ f ≤ 60 kHz, 7-bit @ f > 60 kHz, temperature drift <0,01°/K
Max. Dyn. reserve 80 dB
Control Interface 16 Opto coupler protected digital inputs, TTL/CMOS compatible 8 bit phase, 4 bit time constant, 4 bit sensitivity
Power Requirements ±15 V, +120 mA / -60 mA
Dimensions 223 x 105 x 65 mm (L x W x H), weight 1,000 g (2.2 lbs)
Datasheet

The optional Reference Oscillator SOM-1 can be connected by an extension connector inside the module. Power supply via 3-pin Lemo® socket. A mating connector is provided with the device. Optional power supply PS-15 available. For further information please view the datasheet.

Lock-In-Amplifier as a standard

The high prices for usual desktop lock-in amplifiers mean that they are not as common in noise limited experiments as would be desirable. For this reason FEMTO designed a complete, easy-to-use and high performance lock-in amplifier expanding the reach of lock-in amplifiers into cost-sensitive applications.

Programming the lock-in manually or by computer

The Series LIA-MV(D)-200 Lock-In Amplifiers are designed as stand-alone units which can be programmed both manually by front-panel switches and remotely by a digital interface. By using a PC with a standard digital I/O card all main settings for sensitivity, time constant and phase shift can easily be controlled. Therefore, the Series LIA-MV(D)-200 Lock-In Amplifiers are the ideal tool for integration into complex or automated test systems as well as for use as standard lab unit in cost-sensitive applications.

LIA-MVD-200-H working principle

Block Diagram LIA-MVD-200-H

Applications

  • Spectroscopy
  • Luminescence, fluorescence, phosphorescence measurements
  • Light scattering measurements
  • Laser stabilisation
  • Opto-electronical quality control
  • Integration into industrial and scientific measurement-systems
  • Alternative to expensive desktop lock-in amplifiers for general lab use

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