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High Sensitivity Thermal Sensors

High Sensitivity Thermal Sensors

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High Sensitivity Thermal Sensors

Product catalog summary

High Sensitivity Thermal Sensors Overview

Features:

Low noise and drift for measuring very low powers and energies.
Broadband and P absorbers suitable for continuous wave (CW) and short pulses.
Capable of measuring up to 3W with spectrally flat response.

Models and Specifications:

Model 3A: General purpose, broadband absorber, spectral range 0.9 - 20 µm, aperture 9.5mm, power range 60µW - 3W.
Model 3A-P: Designed for short pulses, P type absorber, spectral range 0.5 - 6 µm, aperture 12mm, power range 60µW - 3W.
Model 3A-FS: Includes a removable window for divergent beams, broadband absorber, spectral range 0.9 - 20 µm, aperture 9.5mm, power range 30µW - 3W.
Model 3A-P-FS-12: For divergent beams with window blocking infrared, P type + F.S. window absorber, spectral range 0.22 - 2 µm, aperture 12mm, power range 60µW - 3W.

Performance Parameters:

Power noise level ranges from 2µW to 6µW depending on the model.
Thermal drift varies from 5µW to 40µW based on room conditions.
Maximum average power density is 0.2 KW/cm² for most models.
Response time with meter typically ranges from 0.8s to 2.5s.
Power accuracy is consistent at +/- 3% across models.

Energy Mode:

Energy range from 20µJ to 2J, with minimum energy detection as low as 5µJ for some models.
Maximum energy density varies with pulse duration, up to 4 J/cm² for 10ms pulses.

Additional Information:

Cooling is achieved through convection for all models.
Fiber adapters available for ST, FC, SMA, SC connections.
Weight is approximately 0.2 Kg for most models.

Notes:

Performance may vary with room airflow and temperature changes.
For measurements beyond 2.2µm, the window should be removed.

Catalog excerpts

27 For latest updates please visit our website: www.ophir-spiricon.com 01.01.2010 1.1.2 Thermal Power Sensors 1.1.2.1 High Sensitivity Thermal Sensors 30ìW to 3W Features Very low noise and drift to measure very low powers and energies Broadband and P absorbers for CW and short pulses Up to 3W Spectrally flat Ê Ê Ê Ê 3A/ 3A-P 3A-FS 3A-P-FS-12 3A 3A-P 3A-FS 3A-P-FS-12 Model 3A 3A-P 3A-FS 3A-P-FS-12 Use General purpose Short pulses With removable window For divergent beams, window blocks infrared Absorber Type Broadband P type Broadband P type + F.S. window Spectral Range ìm 0.19 - 20 0.15 - 6 0.19 - 20 (b) 0.22 - 2.1 Aperture mm ö 9.5mm ö 12mm ö 9.5mm ö 12mm Maximum Beam Divergence NA NA NA ±40 degrees Power Mode Power Range 60ìW - 3W 60ìW - 3W 30ìW - 3W 60ìW - 3W Power Scales 3W to 300ìW 3W to 300ìW 3W to 300ìW 3W to 300ìW Power Noise Level 2ìW 4ìW 2ìW 6ìW Thermal Drift (30min) % (a) 5 - 20ìW 5 - 30ìW 2 - 10ìW 20 - 40ìW Maximum Average Power Density KW/cm2 0.2 0.05 0.2 0.05 Response Time with Meter (0-95%) typ. s 1.8 2.5 1.8 2.5 Power Accuracy +/-% 3 3 3 3 Linearity with Power +/-% 1.5 1.5 1.5 1.5 Energy Mode Energy Range 20ìJ - 2J 20ìJ - 2J 15ìJ - 2J 20ìJ - 2J Energy Scales 2J to 200ìJ 2J to 200ìJ 2J to 200ìJ 2J to 200ìJ Minimum Energy mJ 20ìJ 20ìJ 15ìJ 20ìJ Maximum Energy Density J/cm2 <100ns 0.3 1 0.3 1 0.5ms 1 1 1 1 2ms 2 1 2 1 10ms 4 1 4 1 Cooling convection convection convection convection Fiber Adapters Available (see page 42) ST, FC, SMA, SC ST, FC, SMA, SC ST, FC, SMA, SC NA Weight Kg 0.2 0.2 0.2 0.15 Version V1 Part number 7Z02621 7Z02622 7Z02628 7Z02687 Note: (a) Depending on room airflow and temperature variations Note: (b) Remove window for measurement beyond 2.2ìm 1.1.2 Sensors

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