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Infrared gas detectors are based on infrared absorption gas detection principle. Their mode of operation can be simply described as follows: An infrared light source illuminates the volume of gas entering the measuring chamber. As light passes through the gas, some infrared wavelengths are absorbed by the gas, while others are not attenuated at all. […]

Introduction to Toxic Gas Detection Chemical and petroleum plants, or facilities that produce oil and gas, must deal with a variety of toxic chemicals in their daily operations. Most of these toxic chemicals are in the form of gases or vapors. This article will briefly introduce the various toxic gas detectors used to detect these

NDIR gas sensors were introduced in the 1960s and has been a staple of the gas detection industry for decades. These gas sensors work by detecting combustible gases at different wavelengths using infrared light. There are many advantages to using NDIR technology, but there are also some disadvantages that any user should consider. NDIR Technology

Gas detectors provide a very important first line of defense against the danger of undetected gas leaks on board. Understanding how a gas detector works will help you choose the right solution for your boat. Both stationary and portable gas detectors play a vital role in protecting crew safety and Marine ecosystems. The science of

Understanding the JXCT Electrochemical Gas Sensor Circuit Electrochemical gas sensor measures the concentration of a target gas by using oxidation or reduction reactions to generate positive or negative current flow through an external circuit. The basic components of an electrochemical sensor include a “working” electrode, a “counter” electrode and in most case a “reference” electrode.

There are three main types of rain gauges for measuring rainfall, using three different methods. The three main types of rain gauges are standard rain gauges, tip bucket rain gauges, and weighing rain gauges. Although the basic operation of a rain-gauge is generally no different from these major types of rain-gauges, aspects such as how

A gas sensor is designed to detect a specific gas and measure whether the gas is present in the environment near the sensor, or its content in the air. Therefore, gas sensors are often indispensable in safety systems. There are many different types of gas sensors that can measure different gases. There are sensors that

The main application area of the non-combustible gas sulfur hexafluoride (SF6) is the insulation of high voltage switchgear, transformer and cable. Although sulfur hexafluoride is non-toxic and non-flammable, its global warming potential is about 24,000 times that of carbon dioxide (GWP =23,900). In addition, sulfur hexafluoride is odorless, heavier than air, and can accumulate in

Sensors in Carbon Monoxide Detectors The electrochemical carbon monoxide sensor uses gel to detect CO. The electrochemical gas sensor is mainly used to detect oxygen and toxic gases. They measure chemical reactions within the sensor to produce a current output proportional to the level of CO. Essentially, Electrochemical carbon monoxide sensor is small fuel cells

We became concerned about gas leakage after we found that some gases had harmful effects on human health. A portable gas detector can be used to monitor gas concentrations around the person, either hand-held or worn on clothing or on a belt/suspenders. These gas detectors are usually battery powered. Alarms and flashing lights appear when