1.Overview

This module adopts Tunable Diode Laser Absorption Spectroscopy ( TDLAS301) technology, utilizing a narrow-linewidth single longitudinal mode tunable laser and integrating a cross-interference elimination algorithm to avoid background gas interference. It features excellent anti-interference capability, high measurement accuracy, wide application range, fast response, strong stability, and long service life, enabling continuous detection of methane (CH₄) concentration.

The TDLAS301 Methane (CH₄) Laser Sensing and Measurement Module also integrates refined temperature and pressure compensation, significantly enhancing stability and minimizing environmental interference. It is capable of performing quantitative gas concentration measurements under various conditions, especially in harsh environments such as high temperature, high pressure, and strong corrosion, making it widely applicable in diverse industrial scenarios.

2.Product Advantages

l Real-time online detection with fast measurement speed and short response time.

l Utilizes a narrow-linewidth, single longitudinal mode tunable laser integrated with a cross-interference elimination algorithm to effectively avoid background gas interference.

l The module features refined temperature and pressure compensation, greatly enhancing stability and minimizing environmental interference.

l Adaptable to various environments, especially harsh conditions such as high temperature, high pressure, and strong corrosion.

l Widely applicable in multiple industrial fields, offering long service life and low maintenance costs.

3.Principle Introduction

This product uses a tunable diode laser as the detection light source. By modulating the injection current of the laser, 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. By analyzing the variation in the laser absorption spectrum, the concentration of the target gas can be accurately determined.

As illustrated in the figure below:

4. Specifications

4. Dimensions

Dimensions (L × W × H):156 mm × 126 mm × 56 mm

Xi'an Kacise Optronics Co.,Ltd. is a professional manufacturer of  measuring instruments , located in China xi’an City. Since 2008, Xi'an Kacise focused on the development and production of pressure, level and flow measuring instruments .

We have been specializing in manufacturing pressure, level and flow measuring instruments and related products for 10 years. Based on experienced technical and management personnel, through efforts of our entire staff, we have become a professional measuring instrument manufacturer and solution provider. And we are continuously trying to improve product quality.

Xi'an Kacise is qualified with ISO 9001-2008, GJB 9001B-2009, CE, intrinsic safety explosion-proof and isolated safety explosion-proof certificates, etc. which ensure that our products comply with international standards.

Kacise sensors have already been exported to America, Spain, Australia, Chile and 20 other countries and regions, and received many favorable feedbacks. Our overseas distributers are also increasing. We regard “reasonable prices, efficient production time and good after-sales service” as our tenet, and hope to cooperate with more customers for mutual development.

Our goal is simple: to sell the best products at the best prices, and provides industry-leading customer service. We personally get to know each of our customers, and we know how to discover the most valuable part of our business , to help others achieve their goals.