Gas Mixer for Gas Sensor Measurement - SGX Sensortech

TARGET OF THE PROJECT

Measurements of cross sensitivity of gas sensors to to non-standard gases

Description of the Application.

SGX Sensortech Limited is a manufacturer and research company of sensors and detectors for Industrial Safety, Environmental Monitoring. In modern times far more attention is being paid to the monitoring of the environment. New markets emerge which are both related to the growing demand for sensing solutions for the residential market as well as specialized industrial solutions, where requirements on performance and cross-sensitivity are very high.

To be able to provide the best solutions our sensors/detectors have to be characterized by a much wider spectrum of gases and potential contaminants. In our applications, the GB100 series gas blender is used for measurements of the cross-sensitivity of gas sensors to gases that might potentially occur in field applications. The Gas Mixture Creator Software provided with the gas blender allows for accurate mixing of gases allowing for analysis of sensor response over a wide range of concentrations.

The flexibility of gas mixing along with the included gas library makes it possible to verify response to single gas mixtures with balance gas (air, nitrogen), as well as multiple gas mixtures, which is especially important during the characterization of variations of filters used in infrared sensors.

Benefits and Savings.

With the GB100 gas blender, we can easily conduct repeatability tests that can be used to verify components’ quality.

The last use of the blender is mid-term gas response testing.

The Gas Mixture Creator Software allows for managing gas application sequence, which is crucial during tests related to performance standards.

ABOUT THE COMPANY

For more than 50 years, SGX Sensortech, has remained at the forefront of air quality sensors and modules. Our innovative products have helped protected the occupants of cars from deteriorating air quality whilst driving through polluted cities, reduced the cost of air conditioning in buildings and made the work environment a safer place from flammable and toxic gas hazards. At Amphenol-ASTG, we make Quality, Safety and Environmental Protection a top priority. We believe that making sustainable choices in the way we conduct our business creates short-term and long-term value for our stakeholders. We do not create long-term value by merely complying with regulations, but we go beyond compliance to find ways to green our operations and our products to ensure continuity of the material and human resources that we need to operate the business.

MAIN BENEFITS

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  COST AND SPACE SAVINGS. Significant reduction of number of gas mixtures required for initial sensor characterization. Usually one mixture and balance gas is enough. Buying cylinders is expensive and limits the availability of mixtures that may be required. Gas cylinders are also large and often require special storage arrangements, as well as taking up valuable space.
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  SUCCESSFUL ACHIEVEMENT. The MCQ gas blender is used for measurements of cross sensitivity of gas sensors to gases which might potentially occur in field application. Allowing on-demand, real time characterisation of sensors.
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  GAS BLENDER VS GAS CYLINDER. The ability to blend different gases on-demand is an incredibly powerful tool in the development of innovative gas detection equipment. And provides a level of flexibility that gas cylinders cannot provide. Mixing of gases allowing for analysis of sensor response over a wide range of concentrations.
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  SOFTWARE AUTOMATION. Thanks to our Software PRO Version and its option “Automatic Program”, now the SGX can bring forward experiments in automation. Moreover Software is easy to operate (no need for long training of personel).
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  FLEXIBILITY AND COMPACTNESS. By using the MCQ gas blender it is possible to dial up a simulation of a mixture at any time, and to a certain degree, different concentrations of the blended gas mixture. Compact gas blending solution that can be used in many applications, easy to transfer and operate.
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  STABLE FLOW AND REPEATABILITY. Thanks to our revolutionary method every gas flow has a great stability as SGX can easily conduct repeatability tests that can be used to verify components quality.

RESOURCES