. Electronic apparatus for biological research. Electronic apparatus and appliances; Biology -- Research. PHOTOELECTRIC DETECTORS The spectral response of the P50A is shown in Figure It can be seen that the response fits well the spectral output of a tungsten source, so that good transfer of energy from source to detector may be expected. m 2A ^ 22 20 ^ 18 f 16 ° 1^ § 12 10 8 6 4 2 0 -2 u > Sensitivity at 1-6 microns=10|jLA/mW/cm^ , \ > y \ y / \ y / \ / / 0-5 07 0-9 11 13 15 Wavelengh 1-7 1-9 21 microns Figure Spectral response curve of a typical P50A Standard Telephones an
. Electronic apparatus for biological research. Electronic apparatus and appliances; Biology -- Research. PHOTOELECTRIC DETECTORS The spectral response of the P50A is shown in Figure It can be seen that the response fits well the spectral output of a tungsten source, so that good transfer of energy from source to detector may be expected. m 2A ^ 22 20 ^ 18 f 16 ° 1^ § 12 10 8 6 4 2 0 -2 u > Sensitivity at 1-6 microns=10|jLA/mW/cm^ , \ > y \ y / \ y / \ / / 0-5 07 0-9 11 13 15 Wavelengh 1-7 1-9 21 microns Figure Spectral response curve of a typical P50A Standard Telephones and Cables germanium diffusion-junction photodetector. AGO 600 800 1,000 1,200 1^400 1,600 Current through cell uA Figure Performance data of an average P50A germanium phototransistor The cell must be used with an electrical power source of the correct polarity. Figure shows the current versus applied voltage characteris- tics for an average cell at various light levels at a temperature of 20°C. At least 1 V must be applied before the cell will function. The effect of a 100 kilohm load is also shown. Due to the small area of the active photosensitive element (0-15 mm^) the sensitivity of the device to unfocused illumination is 379. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Donaldson, Peter Eden Kirwan. New York, Academic Press
Size: 1912px × 1308px
Photo credit: © The Book Worm / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookcollectionbiodiversity, bookleafnumber407
