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- etimologia
O que (quem) é mechanical modulator - definição
DEVICE THAT MULTIPLIES TWO ANALOG SIGNALS
Product Modulator
Reuptake modulator
Transporter modulator; Transporter ligand; Uptake modulator
A reuptake modulator, or transporter modulator, is a type of drug which modulates the reuptake of one or more neurotransmitters via their respective neurotransmitter transporters. Examples of reuptake modulators include reuptake inhibitors (transporter blockers) and reuptake enhancers.
Mechanical counter
.jpg?width=200 "Mechanical counter wheels showing both sides. The bump on the wheel shown at the top engages the ratchet on the wheel below every turn.")
DIGITAL COUNTERS BUILT USING MECHANICAL COMPONENTS
Counter (mechanical); Mechanical counters; Veeder-Root Counter; Veeder-Root counter
Mechanical counters are digital counters built using mechanical components. Long before electronics became common, mechanical devices were used to count events.
Mechanical television
![A color televisor. A test card (the famous [[test card F]]) can just be seen through the lens on the right.](https://commons.wikimedia.org/wiki/Special:FilePath/Colour Televisor.JPG?width=200 "A color televisor. A test card (the famous [[test card F]]) can just be seen through the lens on the right.")
![Ernst Ruhmer demonstrating his experimental television system, which was capable of transmitting 5×5 [[pixel]] images of simple shapes over telephone lines, using a 25-element selenium cell receiver (1909)<ref>[https://babel.hathitrust.org/cgi/pt?id=mdp.39015031441952;view=1up;seq=489 "Another Electric Distance-Seer"], ''Literary Digest'', September 11, 1909, page 384.</ref>](https://commons.wikimedia.org/wiki/Special:FilePath/Ernst Ruhmer demonstrating simple television system (1909).jpg?width=200 "Ernst Ruhmer demonstrating his experimental television system, which was capable of transmitting 5×5 [[pixel]] images of simple shapes over telephone lines, using a 25-element selenium cell receiver (1909)<ref>[https://babel.hathitrust.org/cgi/pt?id=mdp.39015031441952;view=1up;seq=489 \"Another Electric Distance-Seer\"], ''Literary Digest'', September 11, 1909, page 384.</ref>")
![Flying spot scanner in a television studio in 1931. This type was used for "head shots" of performers speaking, singing or playing instruments. A bright spot of light projected from the lens at center scanned the subject's face, and the light reflected at each point was picked up by the 8 [[phototube]]s in the dish-shaped mirrors.](https://commons.wikimedia.org/wiki/Special:FilePath/Flying spot scanner 1931.jpg?width=200 "Flying spot scanner in a television studio in 1931. This type was used for \"head shots\" of performers speaking, singing or playing instruments. A bright spot of light projected from the lens at center scanned the subject's face, and the light reflected at each point was picked up by the 8 [[phototube]]s in the dish-shaped mirrors.")
![The [[Nipkow disk]]. This schematic shows the circular paths traced by the holes, that may also be square for greater precision. The area of the disk outlined in black shows the region scanned.](https://commons.wikimedia.org/wiki/Special:FilePath/Nipkow disk.svg?width=200 "The [[Nipkow disk]]. This schematic shows the circular paths traced by the holes, that may also be square for greater precision. The area of the disk outlined in black shows the region scanned.")
A TELEVISION SYSTEM THAT RELIES ON A MECHANICAL SCANNING DEVICE, TO BOTH SCAN AND REPRODUCE THE VIDEO SIGNAL.
Mechanical Television; Electromechanical television; Mechanical TV; Televisor; Baird Televisor; Televisors; Televisory; Mechanical televisions; Baird system; Mechanical scan television
Mechanical television or mechanical scan television is a television system that relies on a mechanical scanning device, such as a rotating disk with holes in it or a rotating mirror drum, to scan the scene and generate the video signal, and a similar mechanical device at the receiver to display the picture. This contrasts with vacuum tube electronic television technology, using electron beam scanning methods, for example in cathode ray tube (CRT) televisions.
Wikipédia
Analog multiplier
In electronics, an analog multiplier is a device that takes two analog signals and produces an output which is their product. Such circuits can be used to implement related functions such as squares (apply same signal to both inputs), and square roots.
An electronic analog multiplier can be called by several names, depending on the function it is used to serve (see analog multiplier applications).
