3A High Sensitivity Thermal Sensors

3A

產品型號：3A
產品說明：

3A is a very sensitive thermopile based laser power/energy sensor with very low noise and drift. It has a 9.5mm aperture. It can measure from 10µW to 3W and from 20µJ to 2J. It is spectrally flat and covers the spectral range from 0.19 to 20 µm. The sensor comes with a 1.5 meter cable for connecting to a meter or PC interface.

價格(NTD)：$0

產品說明

Model Use	3A General purpose
Absorber Type	Low power broadband
Spectral Range	0.19 - 20µm
Aperture	Ø9.5mm
Maximum Beam Divergence	NA
Power Mode
Power Range (a)	10μW - 3W
Power Scales	3W to 300μW
Power Noise Level	1µW
Thermal Drift (30min) (a)	5 - 20µW
Maximum Average Power Density	1kW/cm²
Response Time with Meter (0-95%) typ.	1.8S
Calibration Uncertainty	±1.9%
Power Accuracy (d)	±3%
Linearity with Power	±1%
Energy Mode
Energy Range	20µJ - 2J
Energy Scales	2J to 200µJ
Minimum Energy	20µJ
Maximum Energy Density J/cm² (b)
<100ns	0.3
0.5ms	1
2ms	2
10ms	4
Cooling	convection
Weight	0.2kg
Fiber Adapters Available	ST, FC, SMA, SC
Part number: Standard Sensor	7Z02621
Note: (a) Depending on room airflow and temperature variations. Lowest measurable powers are achieved by thermally quiet room conditions, using removable snout (for 3A, 3A-P, 3A-PF-12 sensors), averaging and offset subtraction. (b) For P and PF types and shorter wavelengths derate maximum energy density as follows: P type PF type Wavelength Derate to value Derate to value 1064nm Not derated Not derated 532nm Not derated Not derated 355nm 40% of stated value 70% of stated value 266nm 5% of stated value 15% of stated value 193nm 10% of stated value 5% of stated value (c) Calibrated from 193nm to 2.2μm and at 10.6μm. There is an additional error of ±1% from 450nm to 650nm. (d) The 3A and 2A-BB-9 sensors have a relatively large spectral variation in absorption and has a calibrated spectral curve at all wavelengths in its spectral range to the above specified accuracy. Nova, Orion and LaserStar meters do not support this feature and when used with those meters, the accuracy will be ±3% as above for 532nm, 905nm, 1064nm and 10.6μm but there will be an additional error of up to 3% at other wavelengths in the spectral range 190 – 3000nm.

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