Silicon-on-sapphire pressure transmitters are intrinsically safe

Silicon-on-sapphire technology was initially utilised in the advancement of high-temperature integrated circuits for the NASA space programme. ESI has taken this technology and developed a sensor that is capable of accurately measuring vibration, torque, force or pressure in extreme temperatures over long periods of time. A major advantage of an SOS sensor over conventional silicon-based sensors is that it is free from residual stresses caused during processing, which therefore provides assured performance.

The excellent elasticity of the sapphire is a very important factor. The ability to bend the wafer and bring it back down to its original position - known as repeatability - is a highly desirable characteristic for sensors.

Incorporating SOS into applications where ATEX approval is required provides reliable and durable products with excellent performance and value. The range includes absolute, differential, submersible, high-pressure, high-accuracy, hygienic and rugged oil and gas transmitters.

Go to www.esi-tec.com, call +44 (0)1978 262255 or email [email protected] for more information.