 | About Us |
| International R & D Projects |
| Temperature and Magnetic Field Sensors |
| Technology Development and Transfer Office |
| Center of Cryogenic Sensors and Thermometry |
| Meetings |
| Contact |
Silicon-based diode temperature sensorDiode temperature sensor can be used for static and dynamic temperature measurements in the 1.5 K to 450 K temperature range.
Three types of sensor packages are offered:
The temperature sensing element for thermometer is a silicon p+-n-n+ planar diode. The size of the diode structure is 0.35 mm x 0.35 mm x 0.2 mm. This sensitive element is placed in nonmagnetic miniature package. The diode temperature microsensor overall size is 1.2 mm in diam. x 1.0 mm thick. The microsensors (1.2 mm in diameter and 1.0 mm thick) can be used when temperature measurement with high spatial resolution and small response time is required. They can also be incorporated in canister package (3 mm in diameter and 5 mm long). Characteristics of Si-based diode temperature sensors Voltage, U, and sensitivity, dU/dT, vs temperature, T, curves at different currents
Overall and detailed views of the micro-thermometer designMicro-package (MP model):- 1.2 mm in diameter and 1.0 mm thick   The temperature sensing element is contained within an alumina tube which has copper end caps. The element is bonded to the one of end cap and electrical contact made to both caps through 30-50 µm gold wires. Finally, copper wires are soldered to the end caps to facilitate four-terminal measurements. The micro-packaged thermometer with plate, MPP model
 The micro-packaged thermometer is soldered to the plate (2 mm square by 0.15 mm thick). Electrical contacts made of copper wires, which are soldered to the plate to provide measurements. L I T E R A T U R E
|
