Bar-code reader

Bar-code reader

A laser scanning device that recovers the data from a tag that contains a bar code. The laser beam moves across the tag. The beam is reflected from the white regions between the lines, but is absorbed by the dark lines themselves. This produces modulation of the reflected beam by the data contained in the tag.

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Industry/Domain: Engineering
Category: Electronic engineering
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bar-code reader

Engineering; Electronic engineering

A laser scanning device that recovers the data from a tag that contains a bar code. The laser beam moves across the tag. The beam is reflected from the white regions between the ...

adaptatcan bar code reader

Automation; Industrial automation

An Allen-Bradley bar code reader that combines an adjustable scanner and decoder in a compact NEMA type-4 enclosure.

Adaptatcan bar code reader

Automation; Industrial automation

An Allen-Bradley bar code reader that combines an adjustable scanner and decoder in a compact NEMA type-4 enclosure.

bar code reader

Software; Supply chain

A movable or fixed device that scans a bar code and interprets the combination of bars and spaces to record a transaction or a status.

bar code reader

Software; Operating systems

An optical device that uses a laser beam to read and interpret bar codes, such as the Universal Product Codes, found on grocery products and other retail items.

reader

Computer; Software; Software engineering

In an inspection (not a walkthrough), the individual that leads the inspection team through the software product in a comprehensive and logical fashion, interpreting sections of ...

Alexanderson

Engineering; Electronic engineering

American inventor who developed the first practical television system in 1930. He later improved upon his invention when he developed color television in 1955.

decibel (dB)

Engineering; Electronic engineering

A practical unit of relative gain. In terms of power, the relative gain in decibels is equal to: Gain (dB) = 10 log 10 ( P out /P in ), where P out is the output power and P ...

audio-frequency meter

Engineering; Electronic engineering

An instrument to measure frequencies in the audio-frequency spectrum (approximately 20 Hz to 20 kHz). Three types are commonly used: * Analog - Gives direct indications of ...

Boltzmann's principle

Engineering; Electronic engineering

A description of the statistical distribution of large numbers of tiny particles under the influence of a force, such as an electric or magnetic field. When the system is in ...

current-hogging injection logic (CHIL)

Engineering; Electronic engineering

A form of bipolar digital logic, similar to current hogging logic but having the greater density characteristic of injection logic.

current-limiting resistor

Engineering; Electronic engineering

A series resistor inserted into a circuit to limit the current to a prescribed value.

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