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research article
Improved design for fast modulating IR sources
The simulation and characterization of a low-cost IR source are described. The IR emission is obtained from heated thin film resistors which are either self- suspended or deposited an a membrane, The simulation, performed with a finite difference method, shows that a reasonably good modulation can be obtained at 50 Hz and higher, Such specifications meet the requirements of various IR gas sensors such as photoacoustic sensors.
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Weber_JMM7_1997_IR.pdf
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191.43 KB
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86f630c92a3476279b0ddf3ea4a0a02c