%0 Journal Article
%A Joseph H Klems
%A Dennis L DiBartolomeo
%B Review of Scientific Instruments
%D 1982
%G eng
%L LBL-13756
%P 1609-1612
%T Large-Area, High-Sensitivity Heat-Flow Sensor
%V 53
%1 <p>Windows and Daylighting Group</p>
%2 LBL-13756
%X <p>A heat-flow sensor based on ac resistance thermometry and utilizing synchronous detection is described. The sensor design permits large-area sensors to be constructed economically. Calibration of an initial 0.09 m<sup>2</sup> prototype yielded a linear response with a sensitivity of (37.6±0.01) mV(W/m<sup>2</sup>)<sup>-1</sup>. The minimum detectable heat flux is no larger than 0.08 W/m<sup>2</sup>.</p>