ABSTRACT
Laser methane sensor has the characteristics of wide measurement range, low measurement error, fast response, long period between every calibrations, long service life, no gas cross-interference and convenient maintenance in the operation. Based on the VCSEL laser technology, the methane sensor using a self-adaptive, multi-band spectral absorption technology realizes ultra-low power laser spectral detection. Operation at temperature ranging from −10°C to 50°C and pressure ranging from 30 kPa to 200 kPa, the new Laser methane sensor greatly improves the accuracy and reliability of methane measurement on a gas pipeline. By introducing Internet of Things technology, the connection between sensor and computer/mobile terminal and remote real-time monitoring can be realized, and the data of gas drainage pipeline can be monitored and viewed at any time. In this presentation, the design of the VCSEL laser methane sensor and the measured results will be shown, the further improvements will be discussed.
