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photocell

NOUN
  1. a transducer used to detect and measure light and other radiations

How To Use photocell In A Sentence

  • We used a battery of twenty photocells and lasers, enough to register an object as small a fly passing by.
  • The receiver uses a photocell or photodiode to detect the light.
  • The production method of four - quadrant photocell and the relevant circuit and its working principles were introduced.
  • R2 and R4 are chosen to minimize errors due to input offset current as outlined in the section describing the photocell amplifier.
  • Second, to measure the number of moles of photons or einsteins absorbed by the actinometer, a calibrated system must be used, which can be either another actinometric solution or a calibrated radiometer, photocell or photodiode.
  • Single flies were loaded into glass tubes and each glass tube was clamped between the diodes of the photocells.
  • Its photovoltaic and photoconductive actions make it useful in photocells, photographic exposure meters, and solar cells.
  • In the presence of a magnetic field, the amount of laser light that is absorbed by the atoms changes and this is detected by a photocell.
  • It has proven faster than the Hornet, he says, adding that the use of a photocell to find the butt on each new log has helped pick up extra production.
  • Photocells capable of seeing things in a physical sense, advanced photography which can record what is seen or even what is not, thermionic tubes capable of controlling potent forces under the guidance of less power than a mosquito uses to vibrate his wings, cathode ray tubes rendering visible an occurrence so brief that by comparison a microsecond is a long time, relay combinations which will carry out involved sequences of movements more reliably than any human operator and thousands of times as fast — there are plenty of mechanical aids with which to effect a transformation in scientific records. As We May Think
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