Driving the future of technology : Original solution in measurement and control

 Technical notes

Preamplifier

What is a preamplifier?

The Improvements of signal-to-noise ratio (SNR) is very important in small signals measurements. And preamplifiers are used to amplify signals when they are affected by noise, generally in sensor-based measurements, where the purpose is to improve the SNR. Yet, on the other hand, preamplifiers are sometimes used to change the output impedance of sensors as well. More.

Lock-in Amplifier

What is a lock-in amplifier?

The lock-in amplifier measures the amplitude and phase of an AC signal by combining a PSD (phase sensitive detector) and LPF (low-pass filter). Enter an AC "reference signal" and measure only signals of the same frequency. More.

SA Series

Ultra-low Noise Amplifiers

SA series are know as ultra-low noise ampliiers, and there are two main technologies employed in our model SA-230F5 and SA-430F5. Here we will introduce you both of them, which are bias-stabilization technology and active input impedance.More.

 


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