- Current and Voltage Input
- Working Frequency up to 45 kHz
- Adjustable Sensitivity, Time Constant and Phase
- Local and Remote Control
- Compact and EMI-Shielded Case
Compact lock-in amplifier module
In modern optoelectronic systems lock-in-amplification is one of the most useful techniques to get rid of unwanted noise and to improve the measurement sensitivity. Therefore we have created a miniaturized, powerful module operating reliably even in heavy noise environments.
Two Ways of Programming
The amplifier settings – e.g. phase, gain, time constant – are controlled either by switches directly on the amplifier module or externally using a standard digital I/O computer board. The variable working frequency is determined by an external reference signal which may be e.g. the synchronization signal of a chopper wheel or the modulation signal of a laser. The current input is well suited for amplifying signals from high impedance sources like photodiodes or PMTs while the voltage input can be used to measure signals from low impedance sources like pyros or coils.
Applications
- Spectroscopy
- Laser Stabilization
- Luminescence, Fluorescence, Phosphorescence Measurements
- Light Scattering Measurements
- Opto-Electronical Quality Control
- Integration in Industrial and Scientific Measurement Systems
- OEM Systems
Available:
- Low Noise Input/Output Cable: CAB-LN1 Low Noise Cable
- The LUCI-10 amplifier interface allows remote control of FEMTO amplifiers and photoreceivers with a remote control capability from a standard Windows PC with USB port.
Compact Lock-In Amplifier Modules Selector
| Model | LIA-MV-150-S Standard | LIA-MV-150-D True-Differential Input |
| Voltage Input | BNC Single-Ended Instrumentation-Amplifier Noise 12 nV/√Hz | LEMO True-Differential Instrumentation-Amplifier Noise 12 nV/√Hz |
| Current Input | BNC Transimpedance-Amplifier Gain 1 kV/A Noise 13 pA/√Hz | LEMO Transimpedance-Amplifier Gain 1 kV/A Noise 13 pA/√Hz |
| Sensitivity (Full Scale) | Voltage: 3 μV to 100 mV, switchable in 1-3-10 Current: 3 nA to 100 μA, switchable in 1-3-10 |
|
| Gain Accuracy | ± 2% for a Sinusoidal Input Signal | |
| Working Frequency | 10 Hz - 45 kHz | |
| Reference Input | BNC, ± 100 mV to ± 5 V, switchable to TTL | |
| Phase | Adjustable 0 - 360° | |
| Demodulator | 55 dB max. Dynamic Reserve, Square Wave Mixer | |
| Time Constants | 3 ms to 10 s, switchable in 1-3-10, Slope switchable 6 dB or 12 dB/Octave | |
| Output | BNC, X (in phase), ± 10 V Full Scale, short-circuit protected | |
| Control Interface | 16 Opto-Isolated Digital Inputs, TTL/CMOS Compatible, 8 Bit Phase, 4 Bit Time Constant, 4 Bit Sensitivity | |
| Interface Software Option | LUCI-10 Control Interface Software and Hardware option | |
| Power Supply | ± 15 V, +100 mA/V -60mA typ. | |
| Case | 170 x 60 x 30 mm (L x W x H), Weight 370 g (0.82 lbs) | |
| LED overload and unlocked indication. Power supply via 3-pin LEMO socket. A mating connector is provided with the device. Optional power supply PS-15 is available. For further information please view the datasheet. | ||
