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-IF
Specifications
Detector Type: | Pyroelectric |
---|---|
Spectral Range: | 0.1 – 1000 um |
Size: | 2 mm |
Maximum Power: | 0.05 W |
Noise Equivalent Power: | 0.08 uW |
Max Average Power Density: | Not Specified |
Current Responsivity: | 0.5 μA/W |
Thermal Frequency: | 1.6 Hz |
Voltage Responsivity: | 50 V/W |
Feedback Resistor: | 100 MΩ |
Supply Voltage: | ±12 V |
Absorber: | MT |
Dimensions: | 9.1Ø x 6.4D mm |
9.1Ø X 6.4D: | 0.001 kg |
Package: | TO5 |
Features
- Quartz: 0.2 – 3.5 µm
- Barium fluoride: 0.2 – 17.5 µm
- Sapphire: 0.1 – 7.0 µm
- Silicon: 1.2 – 9.0 µm and 22 – 100 µm
- AR germanium: 1.8 – 23 µm (10.6 µm peak)
Applications
- Thermal measurements
- Laser optics
- Metrology
- Inspection
- Biomedical
- Military
Frequently Asked Questions
What are the advantages of a pyroelectric detector over other IR detectors?
What are the different configurations of the Gentec-EO Discrete Pyroelectric Sensor?
What are the measurement capabilities of the Gentec-EO Discrete Pyroelectric Sensor?
What are the physical characteristics of the Gentec-EO Discrete Pyroelectric Sensor?
What is a pyroelectric detector?
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