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Low Noise Digitizer and Lock-in Amplifier

Zurich Instruments AGRequest Info
 
Zurich Instruments Digitizer and Lock-in AmplifierZurich Instruments sets a new milestone with the Digitizer Option for the MFLI, a lock-in amplifier for the middle and low frequency range. Current and voltage signals are digitized with a sampling rate of 60 MSamples/s and a bandwidth of 7 MHz. Exceptional is the low input noise of 2.5 nV/√Hz and the 16 bit resolution (24 bit in HD-mode). The input range is adjustable from ±1 mV up ±3 V, or ±10 nA up ±10 mA, allowing a perfect adjustment to the signal amplitude. Current and voltage signals can be acquired continuously as well as triggered with a demodulated signal, a signal threshold or a pattern on the digital inputs. This so called cross-domain triggering allows new measurement approaches. The digitizer option is completely integrated into the LabOne user-interface. The instrument can be controlled from a web-browser without additional software installation, but LabOne also offers simple integration into MATLAB, LabVIEW, Python or C based programs. Additionally the input signal can be analyzed with the integrated oscilloscope, plotter, software trigger and spectrum analyzer.

To complement the intuitive LabOne software, detailed documentation with tutorials and examples is available. Application fields for the MFLI lock-in amplifier include optical chopper applications, MEMS characterization, pump-probe experiments, ultrasonic material research as well as quantum electronic research.


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GLOSSARY
digitizer
A device that samples and quantizes a signal in digital form for storage in memory.
lock-in amplifier
A form of synchronous detector having a balanced amplifier in which the signal is applied to the grids of two tubes as the control signal is applied to their plates or another grid. The difference in output currents is then measured.
pulsed laser
A laser that emits energy in a series of short bursts or pulses and that remains inactive between each burst or pulse. The frequency of the pulses is termed the pulse-repetition frequency.
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