Phase locked amplifier modulation and demodulation module
Overview
The basic principle of DLAS is the process of phase sensitive demodulation of the laser signal containing gas absorption spectrum received by the photodetector. According to the current market demand, we have independently developed a set of weak signal phase-locked amplification modulation and demodulation board. The circuit board integrates the functions of laser drive modulation signal generation, photodetector signal acquisition and amplification, signal phase-locked demodulation output, and completes all signal processing functions of TDLAS on a single board. Provide integrated solutions for users who need TDLAS gas detection in scientific research and industrial laboratories.Description
1. Overview
锁相放大调制解调模块 provided by Sunpump, designed for 微弱光信号检测 applications. Customization is available upon request.
3. Typical Applications
微弱光信号检测; spectral measurement; 传感器信号放大; material characterization.
Specifications
| Veneer size | 110x110mm |
Technical Data
characteristic
two sampling inputs with adjustable input signal gain
two channels of high-speed DAC output to provide arbitrary waveform modulation signal for laser drive
two independent phase sensitive phase-locked demodulation channels
two low-speed auxdac channels to output phase-locked demodulation results or other calculation results for convenient debugging
connect the upper computer with RS232, USB and Ethernet to realize the uplink and downlink transmission of data and user instructions
online algorithms can be flexibly configured according to user needs
the single board size is 110x110mm, which is convenient for integration with portable TDLAS sensing system