Inline temperature probe

Since inline temperature sensors are used to control the system, they must measure accurately and have a fast response time. At the same time, they must be able to withstand high temperatures at least on the part in contact, i.e. at the measuring tip.

Used is often a special design: cross-band sensors. Because the most accurate surface temperature measurements are physically complex, they require a highly developed and sophisticated sensor head design, such as that of crossband sensors. Two thin thermobands crossed over in the sensor head measure a thermoelectric voltage that quickly and accurately represents the surface temperature. Due to the filigree design of the measuring head, only very little heat is extracted from the measuring point, so that the measurement error is negligible. The low thermal mass of the thermal ribbons in the measuring head ensures particularly short response times when measuring the surface temperature.

Even if other sensors or thermocouples are used, the contact body must match the required response times both in material and design. If possible, the sensors should neither absorb nor change the ambient temperature and the measurement error should remain low.

Inline sensors must have long-term stability, reliability and always measure within the specification over their entire service life of 15 years, regardless of the ambient conditions. At the same time, they must also be cost-effective and easy to maintain.