QS3-L Discrete Pyroelectric Sensor
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Canada
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On FindLight:
since 2014
Description
The QS3-L is a discrete pyroelectric sensor designed with a metallic coating, offering a low noise level for precise measurements. This sensor is part of a versatile family of products that cater to various needs, ensuring a broad spectral response ranging from 0.1 to 1000 µm. Its design is optimized for easy integration, making it an ideal choice for systems requiring compact and efficient components.
With its TO5 package, the QS3-L sensor is compact and lightweight, measuring just 9.1 mm in diameter and 6.4 mm in depth, and weighing a mere 0.001 kg. This makes it highly suitable for applications where space and weight are critical factors. The sensor's aperture diameter of 3 mm and its MT absorber contribute to its high performance and reliability in various environments.
The QS3-L pyroelectric sensor is engineered to provide a maximum average power of 50 mW, with a current responsivity of 0.5 μA/W and a thermal frequency of 0.8 Hz. Its temperature coefficient is 0.2 %/°C, ensuring stable performance across a range of temperatures. This sensor is a part of a product line that includes options for different spectral ranges and power levels, allowing users to select the best fit for their specific requirements.
QS3-L Discrete Pyroelectric Sensor
Specifications |
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|---|---|
| Detector Type: | Pyroelectric |
| Spectral Range: | 0.1 – 1000 um |
| Size: | 3 mm |
| Maximum Power: | 0.05 W |
| Current Responsivity: | 0.5 μA/W |
| Thermal Frequency: | 0.8 Hz |
| Temperature Coefficient: | 0.2 %/°C |
| Absorber: | MT |
| Dimensions: | 9.1Ø x 6.4D mm |
| Weight: | 0.001 kg |
| Package: | TO5 |
Features
- Discrete Pyroelectric Sensor: Sensitive and accurate power measurements
- Metallic Coating (MT): Enhances optical absorption and flattens spectral response
- Low Noise Level: Ensures high sensitivity and fast response (sub-nsec into 50 Ω)
- Broad Spectral Response: Operates in the spectrum from 0.1 μm to 3000 μm
- Versatile Configurations: Available in high sensitivity or high average power configurations
Applications
- Pulsed Laser Applications: Ideal for precise measurements in pulsed laser systems
- Analytical Instrumentation: Suitable for broadband IR radiometers, optical pyrometers, and FTIR spectrometers
- Laser Measurement Products: Well-suited for various broadband analytical instruments
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 available IR windows that can be added to the TO can are 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, and AR germanium: 1.8 – 23 µm (10.6 µm peak).
The Gentec-EO Discrete Pyroelectric Sensor QS3-L is 9.1Ø x 6.4D mm in dimensions.
A pyroelectric detector is a thermal detector that produces a current output proportional to the rate of change of temperature when exposed to a source of radiation.
The maximum average power of the QS3-L sensor is 50 mW.