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
| 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 oder 12 dB/Okt. | 300 µs – 1 s 6 oder 12 dB/Okt. | 3 ms – 10 s 6 oder 12 dB/Okt. | 300 µs – 1 s 6 oder 12 dB/Okt. |
| 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 | Download | Download | Download | Download |
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
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.