Measurement & Control SystemsGasTemp
Acoustic measurement of gas temperatures
The efficiency of many processes in chemical, thermal and process engineering is determined by gas temperatures. In order to optimise these processes by means of closed-loop controls, the gas temperature needs to be measured promptly and precisely. The “classical” thermo couple method reaches thermal equilibrium with the gas to be measured with a long delay and is interferred by heat radiating surfaces.
In contrast, the speed of sound in gases depends on the gas temperature only. The newly developed ceramic sensing element measures the speed of sound in gas quickly and very precisely, and thus directly determines the gas temperature with the same accuracy and high speed (500—1 000 msec).
Gas Temp’s features in detail:
Hire precision – The measuring accuracy of < 3oC is the basis for optimised process control.
Short Response Times – Acoustic measurement allows short response times of < 1 sec.
Large Measuring Range – The large measuring range of 0 – 900oC (larger on request) permits the use in a wide variety of applications. One device – many application areas.
Robust Material – The use of modern, chemically inert ceramics ensures safe application in difficult atmosphere and prevents the sensor element from corrosion.
No Interference by Heat Radiation – The special measurement method eliminates any interference by radiating heat. GasTemp determines the actual gas temperature.
Easy Connection – Coming with an industrial standard 4-20mA interface the system can be connected to the PLC or other process interfaces easily.
- secondary air
- tertiary air
- clinker cooler