Narrow View Angle Thermopile is more focusing on view angle than a conventional type of thermopile. It is an infrared thermopile sensor that realize the more accurate temperature measurement in pinpoint by 1 sensor.
In order to measure a temperature more accurately, a object to be measured temperature need to be within a visible area for the sensors. Therefore, an accurate optical design of a mirror, lens, or else parts is necessary
It makes easier focusing on a object to be measured temperature with accurate measurement by using this narrow view angle thermopile built in a optical part one body.
Output signal will not be reduced because SEMITEC’s original optical design will not cause the infrared amount loss.
A spot temperature measurement without using optical parts such as mirror or lens for gathering rays of light is possible. It is suitable for a non-contact thermometer or an equipment that require a built-in types non-contact temperature measurement.
Items | Characteristics | Remarks |
---|---|---|
Light receiving area | 1.05×1.05mm2 | Absorption film size |
Voltage sensitivity | 15V/W±30% | Reference value |
Output voltage※1 | 1.7mV | Actual value |
Output voltage※2 | 0.95mV | Actual value |
Sensitivity temperature coefficient | 0.02%/℃±0.02 | Reference value |
Thermopile resistance | 65kΩ±30% | at 25℃ |
Thermopile resistance temperature coefficient | ±0.1%/℃ | |
Noise voltage | 33nV/√Hz1/2 | Johnson Noise r.m.s., 298K, 1Hz representative value |
S/N | 75.7dB | |
NEP | 2.2nW/Hz1/2 | Reference value |
Specific detectability | 4.7×107 cm・Hz1/2/W | Reference value |
Time constant | 15ms | Reference value |
Temperature range | -20~100℃ | Reference value |
Storage temperature | -40~100℃ | Reference value |
Angle | ±12.5deg. | Output to 50% senility |
Transmission wavelength band | Cut on 5μm | Standard part |
Insulation resistance | ≧500MΩ | DC25V applied |
Thermistor resistance Value | 100kΩ±3% | 25℃ at zero power resistance |
Thermistor B Value | 3435K±3% | B25/85 |
Thermistor rated power | 0.5mW | at 25℃ |
※1 Test Condition (Black body Temperature:500K, Sensor-Blackbody Distance:100mm, Sensor Temperature:298K, Aperture size:φ12.7mm)
※2 Test Condition (Black body Temperature:310K, Sensor Temperature:298K)