High temperature capability, excellent chemical resistance, biological inertness and long-term electrical stability make platinum a natural choice as the base material for temperature measurement resistance elements, heaters or electrodes.
Due to the special properties of platinum, Pt measurement resistors with 1,000, 2,000 or 10,000 ohms provide a range of advantages compared to competing sensors such as semiconductor sensors (KTY®) or thermistors (NTC):
- high precision
- low drift
- long service life
- nearly linear characteristic
- standardised characteristic line assures sensor interchangeability
- fast response time
- high resistance to thermal shock
- wide temperature application range from -196°C to +1,000°C.
The electrical resistance of a Pt temperature sensor is dependent upon the conductor track length and area. Two types of sensors are: elementary sensors and custom packaged sensors.
Heraeus Sensor Technology develops, produces and markets both sensor types worldwide.
