The Temperature Sensor Specialists

Constantly improving temperature measurement.

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Category Archives: Thermocouple

Waste Treatment Technology Temperature Sensor

Waste Treatment Technology is becoming a more important aspect in society for a number of reasons. Peak Sensors is involved with customers in a number of available technologies, and we are actively seeking new clients with novel waste technology developments to develop better temperature control sensors. If recycling options are exhausted or uneconomic, Turning waste into useful products has a number of advantages.

There are a number of proven and commercially viable waste treatment processes. The processes usually involves some degree of temperature control. Peak Sensors is currently collaborating with these waste treatment technology processes:

Gasification

Pyrolysis

Composting

Waste into Energy, High Temperature Thermocouples.… Read more

Ceramic used in High Temperature Sensor Designs

Temperature Sensors operating above 1100°C normally use ceramic protection sheaths and insulators. The most useful ceramics for temperature sensors are Recrystalised alumina and Aluminous Porcelain.

Recrystalised Alumina Ceramic

Recrystalised Alumina is commonly called RA, Alsint ®, RUBALIT ®  , AluSIK-99 ZA ®, 

RA is the higher temperature grade, with applications up to 1700°C. The specification most usually referred to is DIN 799. A similar grade DIN 710 is now no longer readily available, but it is still seen on older thermocouple specifications sheets. DIN 799 grade is minimum 99.7% Al2O3. Some ceramic shape manufacturers claim 99.8%. My understanding is that the basic raw material before extrusion is 99.8%.… Read more

Temperature Measurement by Exhaust Thermocouple in Engines

Exhaust Thermocouple Sensors are a key element of modern engine management. Measuring the temperature of exhaust gas can provide an important input into system algorithms to improve efficiency, reduce pollutants and extend engine life.

Exhaust Gas sensors are usually thermocouples due to the very high temperatures involved. Often 800°C or more can be achieved. Thermocouple type K is the most common although type J is also found in lower performance engines.

Exhaust Thermocouple Design

The Primary requirement of an Exhaust Thermocouple is to be robust enough to survive a high vibration environment. After that it must be small enough to respond quickly and not disrupt gas flows.… Read more