Ceramic Temperature Sensors For Harsh Environments

Resistivity of ito sensors prepared in various nitrogen partial pressure.

Ceramic temperature sensors for harsh environments.

Sensor showed stable behavior from 10mbar up to 5bar. In harsh environments temperatures are typically measured using a thermocouple or a resistance temperature detector rtd inside a thermowell or protection tube that is connected to a control system with an electronic transmitter. By fabricating ito elements with substantially different charge carrier concentrations it was possible to construct a robust ceramic thermocouple. A wireless passive high temperature pressure sensor without evacuation channel fabricated in high temperature co fired ceramics htcc technology is proposed.

A ceramic thermocouple based on indium tin oxide ito thin films is being developed to measure the surface temperature of gas turbine engine components employed in power and propulsion systems that operate at temperatures in excess of 1500 spl deg c. The properties of the htcc material ensure the sensor can be applied in harsh environments. Integrated ceramic temperature sensors for harsh environments. Ceramic temperature sensors for harsh environments abstract.

3 optical mems sensors optical mems sensors are highly adaptable to harsh environments can measure displacement pressure temperature and stress can be easily incorporated into sensor arrays by using multiplexing methods and are suitable for liquid and gas measurements. Harsh environments can wreak havoc on temperature sensors and warrant special attention during sensor design and development. Were demonstrated in both open flame burner rig tests and furnace tests at temperatures approaching 1250 spl deg c. Locon supplies sensors suitable for a wide range of purposes and applications.

Oxygen partial pressure and argon partial pressure were kept constant at 0 7 10 and 3 5 10 torr. The sensor without evacuation channel can be completely gastight. A ceramic strain sensor and a ceramic thermocouple on a common substrate. The fabrication process of high temperature passive lc ceramic pressure sensors is simple which includes milling tape casting cutting punching screen printing stacking lamination and firing.

To accommodate more challenging project requirements we offer specific sensor series manufactured to function reliably in tough conditions especially those involving high temperature harsh or high pressure environments. Ceramic is a good insulator and is chemically stable in high temperature environments which enables sensors based on ceramics capable of wide application in high temperature environments. A ceramic thermocouple based on indium tin oxide ito thin films is being developed to measure the surface temperature of gas turbine engine components employed in power and propulsion systems that operate at temperatures in excess of 1500 spl deg c. Ceramic rtds resistance temperature detectors.