headphone:What It Does,How It Works,Audio Basics,Variants,Mechanical Design,Values,Intensity,Frequency Response,Distortion and Impedance.

headphone The term headphone is used here to include almost any device that fits into or over the ear for the purpose of sound reproduction. (Hearing aids are not included.) Because headphones are used in pairs, the term is usually pluralized. The term phones is fairly common as a colloquial diminution of headphones but is […]
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headphone:What It Does,How It Works,Audio Basics,Variants,Mechanical Design,Values,Intensity,Frequency Response,Distortion and Impedance.

headphone The term headphone is used here to include almost any device that fits into or over the ear for the purpose of sound reproduction. (Hearing aids are not included.) Because headphones are used in pairs, the term is usually pluralized. The term phones is fairly common as a colloquial diminution of headphones but is […]
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audio indicator:What It Does,Audio Frequency,History,Variants,Sound Patterns,Formats,Values,Voltage,Current and Frequency.

audio indicator An audio indicator is defined here as a noise-creation device that generates a simple tone or series of tones. Unlike a transducer, which requires an external source of AC to determine its audio frequency, an indicator contains its own electronics and requires only a DC power supply. Either of these components is often […]
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audio indicator:What It Does,Audio Frequency,History,Variants,Sound Patterns,Formats,Values,Voltage,Current and Frequency.

audio indicator An audio indicator is defined here as a noise-creation device that generates a simple tone or series of tones. Unlike a transducer, which requires an external source of AC to determine its audio frequency, an indicator contains its own electronics and requires only a DC power supply. Either of these components is often […]
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transducer:What It Does,How It Works,Variants,Electromagnetic,Piezoelectric,Ultrasonic Transducer,Measurement Location,Limitations,Voltage and Current.

transducer The term transducer is used here to describe a noise-creating device that is driven by external electronics. By comparison, an audio indicator (discussed in the next entry) contains its own internal electronics and only requires a DC power supply. Either of these components is often described as a beeper or buzzer. A speaker, more […]
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transducer:What It Does,How It Works,Variants,Electromagnetic,Piezoelectric,Ultrasonic Transducer,Measurement Location,Limitations,Voltage and Current.

transducer The term transducer is used here to describe a noise-creating device that is driven by external electronics. By comparison, an audio indicator (discussed in the next entry) contains its own internal electronics and only requires a DC power supply. Either of these components is often described as a beeper or buzzer. A speaker, more […]
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electroluminescence:What It Does,How It Works,Phosphors,Derivation,Variants,Panels,Flexible Ribbons,Rope Light and OLED.

electroluminescence The field of electroluminescent devices is sometimes referred to as EL. The same acronym can also be applied as an adjective to an individual electroluminescent device, as in, for example, “an EL panel.” An organic light-emitting diode, more commonly known by its acronym OLED, is included in this entry because it is technically an […]
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electroluminescence:What It Does,How It Works,Phosphors,Derivation,Variants,Panels,Flexible Ribbons,Rope Light and OLED.

electroluminescence The field of electroluminescent devices is sometimes referred to as EL. The same acronym can also be applied as an adjective to an individual electroluminescent device, as in, for example, “an EL panel.” An organic light-emitting diode, more commonly known by its acronym OLED, is included in this entry because it is technically an […]
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LED display:What It Does,How It Works,Variants,LCD comparisons,Seven-Segment Displays,Multiple Numerals,Additional Segments,Dot-Matrix Displays,Pixel Arrays,Multiple Bar Display and Single Light Bar.

LED display In this encyclopedia, a component consisting of multiple separately discernible light- emitting diodes, such as a seven-segment numeral, 14- or 16-segment alphanumeric character, a dot-matrix character, or a display module containing multiple characters, is categorized as an LED display. The term light-emitting diode is hardly ever used to de- scribe an LED display, […]
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LED display:What It Does,How It Works,Variants,LCD comparisons,Seven-Segment Displays,Multiple Numerals,Additional Segments,Dot-Matrix Displays,Pixel Arrays,Multiple Bar Display and Single Light Bar.

LED display In this encyclopedia, a component consisting of multiple separately discernible light- emitting diodes, such as a seven-segment numeral, 14- or 16-segment alphanumeric character, a dot-matrix character, or a display module containing multiple characters, is categorized as an LED display. The term light-emitting diode is hardly ever used to de- scribe an LED display, […]
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