Carbon dioxide (CO 2) is a colorless and odorless gas. The imbalanced CO 2
concentrations can have detrimental effects, therefore numerous CO 2 gas sensors have …

High-sensitivity solutions for real-time and on-line multi-component gas detection are
required in coal mine safety, petrochemical and storage and transportation industries …

The wavelength modulation spectroscopy (WMS) method is typically used in the tunable
diode laser absorption spectroscopy (TDLAS) for spectrum extraction in a noisy background …

A back propagation (BP) neural network is introduced and implemented on a field
programmable gate array (FPGA) chip into tunable diode laser absorption spectroscopy …

For deep-sea natural gas hydrate (NGH) exploration, the highly sensitive detection of
dissolved gas in seawater near the seabed is important. A prototype of a midinfrared (MIR) …

A tunable diode laser absorption spectroscopy (TDLAS) tomographic system was proposed
via utilizing the wavelength modulation spectroscopy (WMS) method and distributions of …

This paper presents a measurement system based on the first harmonic in tunable diode
laser absorption spectroscopy using a vertical-cavity surface-emitting laser to measure the …

Urban grasslands are crucial for biodiversity and ecosystem services in cities, while little is
known about their multifunctionality under climate change. Thus, we investigated the effects …

摘要呼出气体分析是一种测量呼出气体成分和含量的新技术, 在人体健康的无创检测和分析中
应用得越来越广泛. 基于低成本微型垂直腔面发射激光二极管(VCSEL) 搭建了可调谐激光吸收 …

Anthropogenic carbon dioxide (CO2) emissions mainly come from cities and their
surrounding areas. Thus, continuous measuring of CO2 in urban areas is of great …