Practically, the materials, from which the sensor’s main components are produced, limit the operating and storage temperatures.
Importantly, the sensor’s fundamental operating principles are not affected by temperature. That means Zettlex sensors can operate in relatively low or high temperatures.
Most frequently, the effective temperature range is limited by the electronic components at –40 to 85 or 125 Celsius (i.e. industrial or automotive ranges).
However, it should be noted that the sensor’s electronics can be displaced away from the Antenna. This enables the sensors to be designed such that only the Antenna and Target are placed in harsh temperature environments whilst the Electronics are placed in a more benign environment away from, or insulated from, the harsh conditions.
Ceramic substrates for the Antennae and Target substrates can be used to increase temperature limits.
We have built sensors that can withstand constant operation at +230 Celsius and we are developing sensors for +450 Celsius.
We have built sensors to operate in -55 and -60Celsius.