Gentec-EO Discrete Pyroelectric Sensor QS2-L
Description
Our pyroelectric detectors are a class of room temperature thermal detectors that produce a current output that is directly proportional to the rate of change of temperature when exposed to a source of radiation. They are best described by an AC current source, capacitor and resistor. Their current output is governed by the equation I = p(T)·A·dT/dt, where I is current, p(T) is the pyro coefficient, A is the area as defined by the front electrode, and dT/dt is the rate of temperature change of the pyro crystal. The advantages of a pyroelectric detector over other IR detectors are: room temperature operation, broad spectral response, high sensitivity (D*) and fast response (sub-nsec into 50 Ω).
Our passive discrete pyroelectric detectors range from 1 to 9 mm in diameter and are provided in two configurations: high sensitivity or high average power. They present a pyroelectric detector element covered with our metallic coating (MT) and are packaged in a miniature TO-5 or TO-8 can. The diagram shown left identifies the pin-out for both types of detectors. Our organic black coating (BL), increases the optical absorption and helps flatten the spectral response. We also offer a number of permanent IR Windows that can be added to the TO can. These discrete pyro detectors are ideal for pulsed laser applications.
Gentec-EO Discrete Pyroelectric Sensor QS2-L
Specifications |
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|---|---|
| Detector Type: | Pyroelectric |
| Spectral Range: | 0.1-1000um |
| Size: | 2 mm |
| Maximum Power: | 0.05 W |
| Noise Equivalent Power: | -- uW |
| Max Average Power Density: | -- kW/cm2 |
Applications
Thermal measurements
Laser optics
Metrology
Inspection
Biomedical
Military
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How to order?
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Ships from:
Canada
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Sold by:
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On FindLight:
since 2014
Frequently Asked Questions
The advantages of a pyroelectric detector over other IR detectors are room temperature operation, broad spectral response, high sensitivity (D*) and fast response (sub-nsec into 50 Ω).
The Gentec-EO Discrete Pyroelectric Sensor QS2-L is ideal for pulsed laser applications, thermal measurements, laser optics, metrology, inspection, and biomedical and military applications.
The different families of products to choose from in the Gentec-EO Discrete Pyroelectric Sensor line are QS-L: discrete pyro detectors, low noise level; QS-H: discrete pyro detectors, high average power; QS-IF: hybrid pyro detectors, current mode, fast response; and QS-IL: hybrid pyro detectors, current mode, low noise level.
The physical characteristics of the Gentec-EO Discrete Pyroelectric Sensor QS2-L include a maximum average power of 50 mW, spectral range of 0.1 - 1000 μm, current responsivity of 0.5 μA/W, thermal frequency of 1.6 Hz, temperature coefficient of 0.2 %/°C, aperture diameter of 2 mm, absorber MT, dimensions of 9.1Ø x 6.4D mm, weight of 0.001 kg, and package TO5.
A pyroelectric detector is a thermal detector that produces a current output that is directly proportional to the rate of change of temperature when exposed to a source of radiation.