The amount and wavelength of energy generated by thermal radiation of object is affected by its surface temperature. The thermal radiation sensor measure infrared radiation of object by using its built-in infrared probe so that its surface temperature can be measured. It performs non-touching measurement and responds quickly.
Thermal Radiation Sensor consists of optical system, photoelectric detector, signal amplifier, signal processing and output. Optical system converges infrared radiated energy of objects in its field of view. The infrared energy gets converged and focus on photoelectric detector so that it becomes electric signal. The signal will be converted to temperature value by amplifier, signal processing circuit, algorithm in instrument and target emissivity.
Specification
| Range | -70ºC~380ºC |
| Resolution | 0.1ºC |
| Accuracy | ±0.5ºC |
Usage
The amount and wavelength of energy generated by thermal radiation of object is affected by its surface temperature. The thermal radiation sensor measures infrared radiation of object by using its built-in infrared probe. The infrared energy gets converged and focus on photoelectric detector so that it becomes electric signal. The signal will be converted to temperature value by amplifier, signal processing circuit, algorithm in instrument and target emissivity.
When distance between sensor and radiator (target object) increases, the amount of infrared ray which enter sensor receiver decreases. Now there will be some error occurred because the measured temperature is slightly different from real temperature. To ensure high accuracy, it is suggested to keep the distance within 2cm.
Notes
- Do not place any part of sensor on open fire or heating plate.
- During measuring, to ensure the accuracy, it is suggested to keep the distance between sensor and object within 2cm.
Typical experiment
- Measure heat radiation of black object.
- The Lesley tube experiment.
- Measure heat radiation of the sun
- Simulate non-touching temperature sensor
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