charge-coupled device (CCD)
dastgâh-e jafsari-ye bâr, sisidi
Fr.: dispositif à transfert de charge
A solid-state detector that stores the electrons, produced by incident photons, in potential wells at the surface of a semiconductor. The packages of charge are moved about the surface by being transferred to similar adjacent potential wells. The wells are controlled by the manipulation of voltage applied to surface electrodes.
charge-injection device (CID)
dastrgâh-e daršâneš-e bâr
Fr.: dispositif à injection de charge
A charge-transfer device that passes along stored charges positioned at predetermined locations; it is used as an image sensor in which the image points are accessed by reference to their horizontal and vertical coordinates.
dastgâh-e tarâvaž-e bâr
Fr.: dispositif de transfert de charge
A semi-conductor device that relays stored charges positioned at predetermined locations, such as charge-coupled or charge-injection devices.
Fr.: appareil, dispositif
Something, thought out, invented, or adapted, for a special purpose.
From O.Fr. devis "division, separation, disposition, wish," from L. divisus, p.p. of dividere "to divide," → divide.
Dastgâh "means, implement, apparatus," originally "wealth, splendour," from dast "strength, superiority," originally "hand" (Mid.Pers. dast, O.Pers. dasta-, Av. zasta-, cf. Skt. hásta-, Gk. kheir, L. praesto "at hand," Arm. jern "hand," Lith. pa-žastis "arm-pit;" PIE *ghes-to-) + gâh "place, time," O.Pers. gāθu-, Av. gātav-, gātu- "place, throne, spot" (Skt. gâtu- "going, motion; free space for moving; place of abode," PIE *gwem- "to go, come").
Fr.: dispositif non-linéaire
An electronic device whose output is not directly proportional to its input. For example, in a → diode the current is a nonlinear function of the voltage; its voltage-current characteristics do not obey → Ohm's law.