TDLAS301 Methane Laser Sensing Module with ≤±1% FS Accuracy, 0–100 ppm Range, and Refined Temperature Compensation

This module employs Tunable Diode Laser Absorption Spectroscopy (TDLAS301) technology, utilizing a narrow-linewidth single longitudinal mode tunable laser integrated with cross-interference elimination algorithms to prevent background gas interference. It delivers exceptional anti-interference capability, high measurement accuracy, broad application range, rapid response, strong stability, and extended service life for continuous methane (CH₄) concentration detection.

The TDLAS301 module incorporates refined temperature and pressure compensation, significantly enhancing stability while minimizing environmental interference. It performs quantitative gas concentration measurements across various conditions, particularly in harsh environments including high temperature, high pressure, and strong corrosion, making it suitable for diverse industrial applications.

• Real-time online detection with fast measurement speed and short response time
• Utilizes narrow-linewidth, single longitudinal mode tunable laser with cross-interference elimination algorithms to effectively avoid background gas interference
• Integrated refined temperature and pressure compensation for enhanced stability and minimized environmental interference
• Adaptable to various environments, especially harsh conditions including high temperature, high pressure, and strong corrosion
• Wide industrial applicability with long service life and low maintenance costs

This product employs a tunable diode laser as the detection light source. By modulating the laser's injection current, the laser wavelength is periodically scanned to cover the characteristic absorption lines of the target gas.

During operation, the laser signal is partially absorbed by the gas under test. Through analysis of the laser absorption spectrum variation, the target gas concentration can be accurately determined.