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.
QS2-IL - Hybrid Pyroelectric Sensor with Metallic Coating
Specifications
| Detector Type: | Pyroelectric | 
|---|---|
| Spectral Range: | 0.1 – 1000 um | 
| Size: | 2 mm | 
| Maximum Power: | 0.05 W | 
| Noise Equivalent Power: | 0.002 uW | 
| Max Average Power Density: | Not Specified | 
| Current Responsivity: | 0.5 μA/W | 
| Thermal Frequency: | 16 Hz | 
| Voltage Responsivity: | 25 kV/W | 
| Feedback Resistor: | 100 GΩ | 
| Supply Voltage: | ±5 V | 
| Absorber: | MT | 
| Dimensions: | 9.1Ø x 6.4D mm | 
| Weight: | 0.001 kg | 
| Package: | TO5 | 
Features
- Hybrid pyroelectric sensor with metallic coating
- Low noise level for precise measurements
- Broad spectral range from 0.1 μm to 1000 μm
- Current responsivity of 0.5 μA/W
- Thermal frequency of 1.6 Hz
- Voltage responsivity of 25 kV/W
- Feedback resistor of 100 GΩ
- Compact TO5 package for easy integration
- Aperture diameter of 2 mm
Applications
- Laser power measurement and characterization
- Pulsed laser applications
- Analytical instrumentation (broadband IR radiometers, optical pyrometers, FTIR spectrometers)
- Laser measurement products
- Power monitoring in research and industrial settings
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 QS2-IL?
What are the measurement capabilities of the Gentec-EO Discrete Pyroelectric Sensor QS2-IL?
What are the physical characteristics of the Gentec-EO Discrete Pyroelectric Sensor QS2-IL?
What is a pyroelectric detector?
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