Principle description of novasis gas sensor in Italy

NDIR (infrared) gas sensor is a simple sensor. In the sensor, the infrared radiation emitted by the light source passes through the measuring unit, and there is gas to be analyzed in the measuring unit. The main components of NDIR sensor are infrared light source, measuring unit (or optical channel), optical filter and infrared photodetector. […]

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Design of front-end circuit of gas concentration acquisition based on Wireless Sensor Network

  Gas concentration acquisition front end: in the research of comprehensive application platform, it is mainly to avoid disasters caused by high gas concentration. Therefore, the accuracy of gas monitoring is very important, so it is particularly important to select appropriate gas acquisition sensors. After considering many aspects, mjc4 / 3.0L carrier catalytic element newly developed […]

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Solution to the drift problem of gas sensor

Sensor drift is one of the most serious problems suffered by gas sensors. Aging and poisoning of gas sensors, as well as uncontrollable factors such as humidity and temperature changes, may lead to this problem. Sensor drift is one of the most serious problems suffered by gas sensors. The aging and poisoning of the gas […]

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Design of air detector based on AVR single chip microcomputer

1、 Project overview 1.1 INTRODUCTION A healthy life is inseparable from fresh air. We use AVR MCU to design an air detector to measure air quality anytime and anywhere. 1.2 project background / motivation Now air pollution is becoming more and more serious. Every citizen should have the right to supervise the pollution of factories […]

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Method for solving drift problem of gas sensor

Sensor drift is one of the most serious problems suffered by gas sensors. The aging and poisoning of the gas sensor and uncontrollable factors such as humidity and temperature changes may lead to this problem. In this regard, researchers from the intelligent and bionic system center of Shenzhen Institute of advanced technology, Chinese Academy of […]

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Working principle of electrochemical gas sensor

A small sensor is an electrode wetted by a water-borne gel electrolyte (usually sulfuric acid: H2SO4). When the detected gases (such as carbon monoxide: CO or hydrogen sulfide: H2S) enter the sensor and oxidize or change the concentration of the electrolyte, the working electrode produces a weak current under the action of the catalyst. The […]

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Renesas electronics launched ultra-low power zmod4510 outdoor air quality sensor platform to unlock personalized air quality monitoring experience

The enhanced platform provides optional ozone detection function, micro sensor and IP67 waterproof package for wearable devices, smart phones and industrial monitoring devices. Tokyo, June 17, 2021 – Renesas Electronics Group (TSE: 6723), a global semiconductor solution provider, today announced the expansion of its popular zmod4510 outdoor air quality (oaq) gas sensor platform and the […]

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Standards lead the market: Sifang optoelectronics participated in the compilation of the group standard of portable formaldehyde detector

In order to standardize the development of the industry and ensure the interests of consumers, the group standard of portable formaldehyde detector (T / caqi140-2020) initiated by China air purification industry alliance and approved by China Quality Inspection Association was implemented on February 6, 2021. Based on years of research and development of electrochemical formaldehyde […]

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