Development of the sensor industry in gas detectors
(1) Extend the service life
The sensor is the key factor in the gas detector product, but the service life of the sensor is the weakest link of the whole product, so how to improve the service life of the sensor to prolong the service life of the product is the most concerned issue of each product manufacturer. Research work in this area has already been initiated.
(2) Enhance anti-interference ability
False positives and false positives are problems that gas detectors must solve. However, in order to completely solve this problem, it is necessary to have specialized technical personnel and a large number of experimental work as a guarantee. In this regard, some enterprises adopt a multi-sensor solution, but this solution cannot solve the problem of product service life. The fundamental method is From the technical level, it can guarantee the service life of the single sensor. It can also ensure that the selection of multiple gas sources can be realized by using a single sensor.
(3) Improve product intelligence
The current gas detector products can only realize the monitoring of a single household. With the advancement of technology and the requirements of monitoring, future combustible gas detectors must be able to realize network monitoring. It is necessary not only to monitor the gas leakage, but also to monitor the performance of the product itself, to ensure that all operating products must be in good condition.
industry competition
The gas detector industry is in an initial stage, and various industry norms are still being formulated, and the industry is mainly dominated by small and medium-sized enterprises, lacking leading companies.
Since the industry is still in the growth stage of the industry, the scale of enterprises in the industry is relatively small, and there are few enterprises with obvious advantages in brand, technology, and scale. It belongs to a fully competitive market, and the industry competition is relatively fierce. The main sales of each enterprise are concentrated in one or two industrial fields, covering the entire gas, petroleum, chemical, metallurgy, and coal industries. There are few enterprises with cross-field operation capabilities, and the competition of industry enterprises is concentrated in the market segments of various industries.
Thermal Conductivity Gas Sensor Recommendations
ISWEEK Industrial Sensing acts as an agent for a variety of high-performance thermal conductivity gas sensors imported from abroad, which can meet the product needs of customers in the application of gas detectors from components to finished modules. The following three popular thermal conductivity gas sensors are mainly recommended sensor:
1. Swiss Neroxis thermal conductivity gas sensor - MTCS2601
The MTCS2601 sensor consists of a micromachined thermal conductivity sensor using four Ni-Pt resistors implemented using MEMS technology. The sensor is housed in a small SMD package and is available in tape and reel packaging. This MEMS TC sensor can be combined with a simple low-power CMOS standard integrated circuit for gas detection, and is an excellent choice for OEM gas detectors that require ultra-low power consumption, long life, and no maintenance. At the same time, it can also perform vacuum detection based on the Pirani principle. It is an excellent choice for size-critical leak OEM detectors that need to achieve ultra-low power consumption, long life, and maintenance-free, or miniature vacuum gauges based on the Pirani principle. Applications include primary pressure control in harsh environments with limited power and size, or detection of gas leaks, moisture or intrusion in closed volumes.
2. Holland Xensor thermal conductivity gas sensor——XEN-TCG3880
The XEN-TCG3880 is a thermal conductivity gauge (TCG) made using silicon technology. The sensor chip consists of a 2.50 x 3.33mm, 0.3mm thick silicon edge into which a silicon nitride membrane is formed. In the center is a heater whose temperature is measured by the sensor element. The chip measures the thermal conductivity between the environment and the center of the membrane, which depends on several parameters such as pressure, type of gas and material deposited on the membrane. This dependence on physical parameters allows TCGs to measure absolute pressure, gas type, and gas mixture composition alike.
The standard housing for the XEN-TCG3880 is a TO-5 10-pin plug with a 5mm diameter hole cap with filter, other housings are available upon request.
3. Holland Xensor high-speed response gas sensor——XEN-5320-ALU-USB
XEN-5320 is a smart gas sensor that has a wide range of applications in industries that need to analyze binary gas mixtures. The sensor is based on thermal conductivity measurement of ambient gas using the proven thermal conductivity sensor XEN-3880. Applications include hydrogen and helium experiments, probing gas diffusivity in jets and plumes, and binary gas composition measurements, as well as monitoring and leak detection of hydrogen, helium, nitrogen, and methane gas mixtures in medical, R&D, and industrial environments.
