Lock-in Amplifiers
Precision lock-in amplifiers for accurate signal detection in noisy environments. Ideal for research and advanced measurement applications.
Lock-in Amplifiers
Lock-in Amplifiers are designed for precise signal recovery in noisy environments. Using advanced DSP technology, they deliver exceptional accuracy, wide frequency range, and flexible connectivity for research and industrial applications. Ideal for detecting weak signals and improving measurement reliability.
Lock-in Amplifiers
Core Function of a Lock-in amplifier : A lock-in amplifier is a precision instrument designed to extract a weak AC signal from a noisy environment using phase-sensitive detection.
Core functions of a preamplfier : A preamplifier boosts weak signals (e.g., from sensors, microphones, or detectors) to a level suitable for further processing or measurement.
Lock-In Amplifier:
Exceptional at rejecting broadband noise, 50/60 Hz hum, and interference. It uses a reference frequency to filter out everything else, achieving dynamic reserves of 100–120 dB. Ideal for experiments where the signal is buried in noise.
Preamplifier:
Adds its own noise and amplifies existing noise along with the signal. While good preamps minimize noise, they cannot isolate the signal from noise without additional filtering.
Featured Products
7270 is a general use lock-in amplifier up to 250 kHz with full front panel control
7230A uses web-based platform to interface to the compact design up to 250 kHz
The model 5113A is a high performance, low noise voltage preamplifier with continuously adjustable gain and selectable high, low and bandpass filtering.
The 5402A is a low noise current input preamplifier designed for use whenever the signal source is a current source - for example, an electron multiplier, ion collector, photo multiplier, or photodiode, or when using a lock-in amplifier to measure sample impedance.
True differential inputs
0.1 Hz to 100 kHz range Gain of x100 with x1, x10 and x1000 available External Power, Battery or Line
