<p>A sensor (1400) with radiation detectors (1421-1422) with two or more bolometer or photoconductor elements and bias polarity switching of one element to emulate mechanical chopping of input radiation. This electronic chopping permits higher chopping frequencies than mechanical chopping for bolometers because the scene settling time does not limit electronic chopping. The detectors may be within a single vacuum integrated circuit package with separate narrow passband filters for chemical spectral analysis. <IMAGE></p>
申请公布号
EP0773435(A2)
申请公布日期
1997.05.14
申请号
EP19960111680
申请日期
1996.07.19
申请人
TEXAS INSTRUMENTS INCORPORATED
发明人
WESTPHAL, GLENN H.;WADSWORTH, MARK VOGEL;MCCARDEL, WILLIAM LEONARD;GOOCH, ROLAND WILBY;MCHUGH, MICHAEL LEO;PETERSON, KIRK DAVID;TERRILL, ROBERT EARL