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.
FEATURES
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Single and dual phase 19" boards
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Working frequency 5 Hz up to 120 kHz
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Phase shifter 0° ... 360°
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Current and voltage input
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Parameter control by local switches and opto-isolated digital inputs
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Mounting kit MK-LIA-2 and reference oscillator module SOM-1 available
HIGH PERFORMANCE AT AN ATTRACTIVE 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
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Spectroscopy
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Luminescence, fluorescence, phosphorescence measurements
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Light scattering measurements
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Opto-electronical quality control
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Integration in industrial and scientific measurement-systems
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Multi-channel-systems at an attractive price
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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 |
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Working Frequency |
5 Hz - 10 kHz |
50 Hz - 120 kHz |
5 Hz - 10 kHz |
50 Hz - 120 kHz |
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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. |
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Signal Filter |
Highpass 0.2 Hz - 1 kHz and Lowpass 100 Hz - 1 MHz |
Highpass 2 Hz - 10 kHz and Lowpass 100 Hz - 1 MHz |
Highpass 0.2 Hz - 1 kHz and Lowpass 100 Hz - 1 MHz |
Highpass 2 Hz - 10 kHz and Lowpass 100 Hz - 1 MHz |
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Datasheet |
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Outputs |
X = in phase, ±10 V full scale, short-circuit protected, Signal monitor output |
X = in phase, Y = quadrature, R = magnitude, ±10 V full scale, short-circuit protected, Signal monitor output |
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Sensitivity (Full Scale) |
Voltage: 3 µV - 1 V in 1-3-10 steps Current: 30 pA - 10 µA in 1-3-10 steps |
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Voltage Input |
True-differential instrumentation amplifier, noise 12 nV/√Hz |
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Current Input |
Transimpedance amplifier, gain 100 kV/A, noise 0.4 pA/√Hz |
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Reference Input |
±100 mV to ±5 V, switchable to TTL |
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Phase |
Adjustable 0° - 360°; resolution: 8-bit @ f ≤ 60 kHz, 7-bit @ f > 60 kHz Temperature drift <0.01°/K |
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Max. Dyn. Reserve |
80 dB |
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Digital Control |
16 TTL/CMOS inputs: 8-bit phase, 4-bit time constant, 4-bit sensitivity |
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Power Supply |
±15 V, +120 mA / -60 mA |
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Dimensions |
160 x 100 x 20 mm (L x W x H), weight 100 g (0.22 lbs) |
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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.
Block Diagram LIA-BVD-150-H
