Exempel på photoelectric cell

• The same spindle supports the photoelectric cell or "eye" so this rotates too; it is always "looking" in the direction in which the model is moving.

• These amplify the response of the photoelectric cell to light so that, when a moderate light is seen, the relay in the plate circuit of the second tube closes.

• It determines the density of a sample placed between the light source and the photoelectric cell from differences in the readings.

• The densitometer is basically a light source aimed at a photoelectric cell.

• Each globule is very active photoelectrically and constitutes, to all intents and purposes, a minute individual photoelectric cell.

• The detector, which is located at a fixed distance from the projector, uses a photoelectric cell pointing vertically.

• The light pen itself had a small photoelectric cell in its tip.

• A photoelectric cell collects the light which passes through the cuvette.

• It is a form of photoelectric cell, defined as a device whose electrical characteristicse.g. current, voltage, or resistancevary when exposed to light.

• An alternative power source with functionally similar results is a photoelectric cell (solar watch).

• On both sides of the opening, photoelectric cells emitted infrared beams directed towards the top of the platform.

• Baird achieved this, where other inventors had failed, by obtaining a better photoelectric cell and improving the signal conditioning from the photocell and the video amplifier.

• The projector used a steady light and a photoelectric cell to convert these variations back into an electrical signal which was amplified and sent to loudspeakers behind the screen.

• It worked by shining a beam of light onto a photoelectric cell, but the cell did not distinguish between light from the remote and light from other sources.

• They were all powered by a score of car batteries connected to a bank of photoelectric cells the size of a door.