| OCR Text |
Show 169 precision potentiometer to measure recorder, Honeywell Electronic 19 used. was The recorder impedance, but the the or voltage, an oscilloscope, Tektronik 502 determined to have was effectively oscilloscope input impedance Separate calibrations Calibration of the were made for each of photo detectors is strip chart a 1 was infinite Meg ohmn. these types of recorders. described in the following section. In and a order the to to total time-of-rise the to flux, was a calibration scheme calorimeter, neutral screens. total thermal radiant flux and each F-l. A total behind the radiation calorimeter quartz window, the same such that the effective view was the the detector. sequency of geletin transmittance, with the most way it to was aso There and the opaque one photo the point prevent wrattin placed were possible measure was To screen to over devised which detector. cloth attenuated correspondance between screen is reported placed in the detector port position as the photo diode, same in Table for the calorimeter and driving between the the photo detector, a quartz window and the detector also used to decrease the flux. measure common It was wire employed filters, neutral density 0.60, 25.1% the flux light intensity in The was in photo light intensity density filters and sequency of wire cloth a the The beam of radiation from the furnace screens. using relate the detector output as entering In this the view port and sensed by the photo detector. between the total radiation calorimeter corresponded to about 0.027 cal/cm2sec. |
