Gas Detection 19
New, sub-miniature, low- cost, high sensitivity and fast-response detector with built-in preamplifi er provides the ideal choice for industrial gas analysis applications
Hamamatsu has developed a new InAsSb photovoltaic detector (P16702-011MN) with built-in preamplifi er offering high sensitivity to mid-infrared light, up to 11 micrometers (μm) in wavelength. Hamamatsu achieved this by combining the latest InAsSb (indium arsenide antimonide) mid-infrared detector with their unique circuit design technology. Compared to Hamamatsu’s previous detector modules with same level of sensitivity, the P16702-011MN size and cost is drastically reduced, and it exhibits fast response time. This makes it an ideal choice for portable gas analysers able to immediately analyse exhaust gas components at measurement sites around factories.
The P16702-011MN is a compound semiconductor photodetector with built-in preamplifi er for electrical signal amplifi cation.
Each molecule has its own vibration and absorbs infrared light at a specifi c wavelength determined by its energy. This property can be used to analyse and identify the type and quantity of chemical components contained in a sample. Therefore, mid-infrared light is widely utilised in the analysis of nitrogen oxides and sulphur oxides contained in exhaust gases from factories, etc.
To meet needs in applications such as gas analysis and monitoring of processing laser equipment, Hamamatsu develop and sell InAsSb mid-infrared detectors and detector module products with enhanced sensitivity, by integrating these with electronic circuits and components including preamplifi ers. To keep up with the growing market demand of further downsizing equipment, Hamamatsu have been working on a sub-miniature, low-cost mid-infrared detector device that also offers high-speed response.
In designing this new device, Hamamatsu adopted the latest back-illuminated type InAsSb mid-infrared detector with a sensitivity 1.5 times higher than the regular type. Hamamatsu encapsulated it into a small cylindrical package with a diameter of approximately 9 mm. The device was drastically downsized to about 1/200th the volume of Hamamatsu’s module products, yet it still offers the same level of sensitivity capable of detecting mid-infrared light at wavelengths up to 11 μm. What’s more, the wiring in the package is optimised to increase the response speed up to 100 megahertz, which is twice as high as Hamamatsu’s module products, thus improving measurement accuracy. It also has a lower manufacturing cost since the number of required components was reduced.
The P16702-011MN will speed up the replacement of mercury-cadmium-telluride (MCT) infrared detectors which is currently the mainstream in high-precision mid- infrared spectroscopy but contains toxic substances restricted by the RoHS Directive (*1). Hamamatsu Photonics is one of the few companies in the world that manufacture both photodetectors and light sources. Using the P16702-011MN in conjunction with a quantum cascade laser or QCL (*2), which they also manufacture, allows making measurements at even higher speeds, resolution, and sensitivity.
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New gas and fl ame detection website launched
Teledyne Gas and Flame Detection is pleased to announce the launch of its new website, featuring updated informational content and a user-friendly interface.
The website is designed to provide an enhanced experience, including improved accessibility and mobile compatibility. It introduces new content on a range of gases, including H2
, CO, O2 NH3 to detect them.
In addition, the site includes detailed information on the company’s range of gas and fl ame detection products, such as detectors, controllers and alarms, making it easy for users to fi nd the right product or service for their specifi c needs.
The new website is designed with a responsive layout, ensuring that it looks and functions seamlessly on all devices, including desktops, laptops, tablets, and smartphones. Moreover, it is further improved with intuitive fi ltering options, allowing users to easily fi nd the products they need without wasting time scrolling through irrelevant items.
“We are thrilled to launch our website, providing our customers with effi cient navigation. With proven reputations for quality and reliability, our dedication to safety now goes further.” said Marion Defasques, Global Digital Communication Developer of Teledyne Gas and Flame Detection. “With our updated comprehensive content and smart design, we are confi dent that our users will fi nd the information they need quickly and easily, creating a more pleasant and productive browsing experience.”
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60559pr@reply-direct.com , and more, helping users understand the potential risks associated with each gas and how
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