Single-Board LIA-BV(D)-150

Features

  • Single and dual phase 19″ boards
  • Working frequency 5 Hz up to 120 kHz
  • Phase shifter 0° ... 360°
  • Current and voltage input
  • Parameter control by local switches and opto-isolated digital inputs
  • Mounting kit MK-LIA-2 and reference oscillator module SOM-1 available 
FEMTO Eurocard Lock-In Amplifier LIA-BVD-150-H
Model LIA-BV-150-L
Single phase
LIA-BV-150-H
Single phase
LIA-BVD-150-L
Dual phase
LIA-BVD-150-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 – 1 kHz Lowpass 100 Hz – 1 MHz Highpass 0.2 Hz – 1 kHz Lowpass 100 Hz – 1 MHz Highpass 2 Hz – 1 kHz Lowpass 100 Hz – 1 MHz
Outputs 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 True-differential instrumentation amplifier, noise 12 nV/√Hz
Current Input Transimpedance amplifier, gain 100 kV/A, noise 0,4 pA/√Hz
Reference Input ±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 160 x 100 x 20 mm (L x W x H), weight 100 g (0.22 lbs)
Datasheet

High performance at reasonable price

The high prices for usual desktop lock-in amplifiers often impede their use in cost sensitive applications. For this reason, FEMTO designed a complete and easy-to-use lock-in board at a very attractive price. All settings for sensitivity, time constant and phase shift can be selected either manually by front-panel switches or remotely by a PC via the digital interface. Additional signal filters can be configured by jumpers on the board to further increase the dynamic reserve in demanding applications.

19″ board versus PC card

A PC card is exposed to the electromagnetic disturbed environment inside a computer case. Therefore, using a PC card for ultra-sensitive measurements of small signals is often not practical. FEMTO's Series LIA-BV(D)-150 Lock-In Amplifiers are designed as 19″ boards which can operate in EMI-designed standard cases which offer best possible shielding and noise suppression. In addition, they are the perfect choice for designing high-performance multi-channel systems.

Applications

  • Spectroscopy
  • Luminescence, fluorescence, phosphorescence measurements
  • Light scattering measurements
  • Opto-electronical quality control
  • Integration in industrial and scientific measurement-systems
  • Multi-channel systems at an attractive price
LIA-BVD-150-H working principle

Block Diagram LIA-BVD-150-H

The optional Reference Oscillator SOM-1 can be connected via an extension connector on the board. All signals and the supply voltage are connected via the 64 pin Euro-card connector. For further information please view the datasheet.

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