For a given film speed, exposure value is directly related to luminance, although the relationship depends on the reflected-light meter calibration constant K.
2.
The 360-degree coverage is pretty good and I suspect by changing the calibration constant you might be able to get somewhat accurate readings in air.
3.
Where " T " 0 is ambient temperature and " ? " 0 is a calibration constant depending on the configuration of the experiment.
4.
The sensor requires no flight crew involvement; it operates automatically and sampling rates and calibration constants can be adjusted by remote command from a US-based operations center.
5.
The relationship between B _ { \ mathrm { v } } and luminance depends on both the speed scaling constant N and the reflected-light meter calibration constant K:
6.
For example, a thermometer could be calibrated so the error of indication or the correction is determined, and adjusted ( e . g . via calibration constants ) so that it shows the true temperature in Celsius at specific points on the scale.
7.
Specifically, if no significant thermal gradients exist in the specimen, then P = e C [ U + t ( dU / dt ) ], where P is heat flow ( i . e . ? W ), ? C is the calibration constant, U the measured potential difference across the thermopile, and t the time constant.
मोबाइल