Peranti tergandeng–muatan: Perbedaan antara revisi

[[Berkas:CCD.jpg|thumb|right|300px|CCD yang dikembangkan khusus untuk penggambaran [[ultraviolet]], dalam sebuag kemasan berikat kawat.]]

'''Alat muatan-berpasangan''' ([[bahasa Inggris]]: '''charge-coupled device''' atau '''CCD''') adalah sebuah sensor untuk merekam gambar, terdiri dari [[sirkuit terintegrasi]] berisi "array" [[kapasitor]] yang berhubungan, atau berpasangan. Di bawah kendali sirkuit luar, setiap kapasitor dapat menyalurkan [[muatan]] listriknya ke tetanggannya. CCD digunakan dalam [[fotografi digital]] dan [[astronomi]] (terutama dalam [[fotometri]]), optikal dan [[spektroskopi]] [[UV]] dan teknik kecepatan tinggi seperti [[penggambaran untung]].

== Operation ==

When a [[photon]] strikes an [[atom]], it can elevate an electron to a higher energy level, in some cases freeing the electron from the atom. When light strikes the CCD surface, it frees electrons to move around and they accumulate in the capacitors. Those electrons are shifted along the CCD by regular electronic pulses and "counted" by a circuit which dumps the electrons from each pixel in turn into a capacitor and measures and amplifies the voltage across it, then empties the capacitor. This gives an effective black & white image of how much light has fallen on each individual pixel.

 

Since a high-resolution CCD chip is very expensive, [[as of 2004]] even a professional photographer could hardly afford a 3CCD high-resolution still camera. There are some high-end still cameras that use a rotating color filter to achieve both color-fidelity and high-resolution. These multi-shot cameras are rare and can only photograph objects that are not moving.

 

== Teknologi saingan ==