The Infrared and Electro-optical Systems Handbook, Volume 5J. S. Accetta, David L. Shumaker This eight-volume set is an authoritative collection presenting state-of-the-art information on infrared and electro-optical systems. The handbook has been completely revised and updated, featuring 45 chapters written by 80 experts in IR/EO technology. |
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Page 192
... Bolometer detector circuit with bridge configuration for dc operation . R1 AV Output IR Radiation R Fig . 4.2 Bolometer detector circuit . The change in electrical resistance resulting from the increased temperature of the bolometer ...
... Bolometer detector circuit with bridge configuration for dc operation . R1 AV Output IR Radiation R Fig . 4.2 Bolometer detector circuit . The change in electrical resistance resulting from the increased temperature of the bolometer ...
Page 193
... bolometer temperature caused by A is ATd , which is expressed in the following differential equation : dɅTa C = + 90ATd Wh + A , GATa dt where C GoATd Wh = = = the heat capacitance of the bolometer element , J K - the conductive and ...
... bolometer temperature caused by A is ATd , which is expressed in the following differential equation : dɅTa C = + 90ATd Wh + A , GATa dt where C GoATd Wh = = = the heat capacitance of the bolometer element , J K - the conductive and ...
Page 194
... bolometer is unstable in this condition and will burn out . For stable operation , the requirement is G > Goa ( ATd ) , ( 4.13 ) where R1 is chosen such that R1 >> Rd for maximizing the signal voltage △ v . The solution of Eq . ( 4.11 ) ...
... bolometer is unstable in this condition and will burn out . For stable operation , the requirement is G > Goa ( ATd ) , ( 4.13 ) where R1 is chosen such that R1 >> Rd for maximizing the signal voltage △ v . The solution of Eq . ( 4.11 ) ...
Common terms and phrases
1/f noise aberration amplifier angle aperture applications arrays axial bandwidth beam bias bolometer capacitance capacitor charge circuit coefficient configurations constant cooler cooling cryocooler cryogenic curve cylinder density detector devices diode display dynamic electrical electron energy equations filter flux focal plane frequency gain heat HgCdTe incident infrared input integration irradiance Irtran laser lens limited linear liquid crystal load material maximum measured mirror modulation MOSFET multiplexer node operation Optical Society optical system oscillation output p-n junction parameters performance photoconductors photon pixel preamplifier quantum efficiency radiation ratio readout referred noise refractive index refrigerator reset resistor responsive element reticle sample scan semiconductor sensor shown in Fig signal silicon slew rate specific spectral response stress surface Table temperature thermal conductivity thermal noise transfer function transimpedance amplifier transistor unit cell voltage wavelength