Help finding some specific elements for infrared (IR) sensor

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SUMMARY

This discussion focuses on sourcing specific infrared (IR) sensor elements, including Thermopile, Pyroelectric, Bolometer, MCT (HgCdTe), PbSe, and InSb sensors. The user outlines detailed specifications for multiple sensor arrays, including pixel pitch, array type, sensing wavelength, output type, and various performance parameters such as sensitivity and noise levels. The inquiry emphasizes the need for manufacturers that can provide these components to meet the outlined specifications. Participants are encouraged to share information about potential suppliers.

PREREQUISITES
  • Understanding of infrared sensor technology
  • Familiarity with sensor specifications and performance metrics
  • Knowledge of manufacturers in the IR sensor market
  • Basic electronics knowledge related to analog output systems
NEXT STEPS
  • Research manufacturers of Thermopile sensors, specifically those offering 2x4 and 4x4 arrays
  • Investigate suppliers of Pyroelectric sensors with integrated voltage mode amplifiers
  • Explore options for Bolometer arrays with specified NETD and sensitivity parameters
  • Look into MCT (HgCdTe), PbSe, and InSb sensor options with built-in TEC cooling
USEFUL FOR

Engineers, researchers, and developers involved in the design and implementation of infrared sensing applications, particularly those requiring precise specifications for sensor components.

Su-Te Tsai
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Dear Everyone,

I'm searching for some specific elements for infrared (IR) sensor, such as Thermopile, Pyroelectric, Bolometer, MCT(HgCdTe), PbSe, or InSb sensors.

Does anyone know how to get these kinds of elements ?
( I need some information about the manufacturers...)

The elements are required to match the specifications(a. to e.) as follows:

1. Thermopile array #1:

a. Pixel pitch: 0.6 mm
b. Array type: 2 x 4 or 4 x 4
c. Sensing wavelength: 8 ~ 14 um
d. Output type: analog for every element
e. Element parameter:
i. Element size: 0.5 mm x 0.5 mm
ii. Sensitivity: 60V/W for 8~14u
iii. Resistance: 80kΩ
iv. Noise: 36 nV/√Hz
v. D*: 0.9 x 108 for 1Hz
vi. Time constant: < 6ms

2. Thermopile array #2:
a. Pixel pitch: 1.1 mm
b. Array type: 2 x 2
c. Sensing wavelength: 8 ~ 14 um
d. Output type: analog for every element
e. Element parameter:
i. Element size: 1 mm x 1 mm
ii. Sensitivity: 50V/W for 8~14um
iii. Resistance: 80kΩ
iv. Noise: 36 nV/√Hz
v. D*: 1.3 x 108 for 1Hz
vi. Time constant: < 10ms

3. Pyroelectric array:
a. Pixel pitch: 1.1 mm
b. Array type: 2 x 2
c. Sensing wavelength: 8 ~ 14 um
d. Amplifier: with integrated voltage mode amplifier (ex. FET), every element
e. Operate frequency: 1Hz ~ 5kHz
f. Output type: analog for every element
g. Element parameter:
i. Element size: 1 mm x 1 mm
ii. Sensitivity: 120V/W for 1kHz and 8~14um
iii. Output impedance: ~100kΩ
iv. NEP: 3.8 x 10-10W/√Hz
v. D*: 2.5 x 108 for 1kHz
vi. Time constant: < 25ms

4. Bolometer array:
a. Pixel pitch: 0.3 mm
b. Array type: 8 x 8
c. Sensing wavelength: 8 ~ 14 um
d. Operate frequency: 1Hz ~ 5kHz
e. Output type: analog for every element
f. Element parameter:
i. Element size: 0.25 mm x 0.25 mm
ii. Sensitivity(before readout gain, 2V, 0Hz): 100,000V/W
iii. NETD(f/1, 300K, 30Hz): < 10mK
iv. D*: 8 x 108
v. Time constant: < 15ms

5. MCT(HgCdTe) or PbSe or InSb:
a. Sensor type: one element
b. Sensing wavelength: 3 ~ 5 um(cut-off λ= 4.9 ~ 6 um)
c. Element parameter:
i. Element size: 0.5 mm x 0.5 mm or 1 mm x 1 mm
ii. D*: 8 x 108
iii. Cooling: None or Built-in TEC type (Up to two TEC)

Thank you so much !Su-Te, Tasi.
 
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