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鎖相放大器(模塊式)

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LOCK-INAMPLIFIERMODULESSERIESLIA-MV-150◆Currentandvoltageinput◆Workingfrequencyupto45kHz◆Adjustablesensitivity,timeconstantandphase◆Localandremotecontrol◆CompactandEMI-shieldedcaseCOMPACTMODULEInmoder

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LOCK-IN AMPLIFIER MODULES SERIES LIA-MV-150

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 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

 

Model

LIA-MV-150-S
Standard

LIA-MV-150-D
True-Differential Input

Voltage Input

BNC connector
Single-ended 
Instrumentation amplifier
Noise 12 nV/√Hz

Lemo® connector 
True-differential 
Instrumentation amplifier
Noise 12 nV/√Hz

Current Input

BNC connector
Transimpedance amplifier, gain 1 kV/A
Noise 4 pA/√Hz

Lemo® connector
Transimpedance amplifier, gain 1 kV/A
Noise 4 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

Working Frequency

10 Hz - 45 kHz

Reference Input

±100 mV to ±5 V, switchable to TTL

Phase

Adjustable 0° - 360° (8-bit resolution), 
Temperature drift <0,01°/K

Demodulator

50 dB max. dynamic reserve

Time Constants

3 ms to 10 s, switchable in 1-3-10, slope switchable 6 dB or 12 dB/octave

Output

X [R · cos(angle)], ±10 V full scale, short-circuit protected

Digital Control

16 TTL, CMOS, opto-isolated
8 Bits phase, 4 Bits time constant, 4 Bits sensitivity

Power Supply

±15 V, 100 mA typ.

Case

170 x 60 x 30 mm (L x W x H), Weight 370 g

  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. 
Block Diagram LIA-MV-150

 

 


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