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Analog-to-digital converters (ADC) sample an analog signal and convert it to a series of digital values to represent the signal to a computer processor.
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Data acquisition is the digitizing and processing of multiple sensor or signal inputs for the purpose of monitoring, analyzing and/or controlling systems and processes. Signal conditioning includes the amplification, filtering, converting, and other processes required to make sensor output suitable for rereading by computer boards.
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Data acquisition computer boards are self-contained printed circuit boards that typically plug into the backplane, motherboard, or otherwise interface directly with the computer bus.
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Data acquisition input modules accept sensor and other signal output for data acquisition systems. They may include signal conditioning prior to the analog-to-digital conversion stage.
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Digital-to-analog converters (DAC) transform a digital number into a corresponding analog voltage or current.
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Encoder and resolver signal conditioners accept encoder and resolver measurements and convert or condition these signals into digital data or suitable levels.
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Digital LED displays are segmented or dot matrix displays allowing for numeric only and alphanumeric character representation.
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Linear variable differential transformer (LVDT) and rotary variable differential transformer (RVDT) signal conditioners are devices that translate the linear or rotary movement of a ferromagnetic armature into an AC voltage that is proportional to the armature position.
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PC/104 modules are tied to the integrated system architecture (ISA) bus standard that is used mainly in embedded systems. Modules are 3.6" x 3.8" and can be self-stacked to save space.
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Absolute rotary encoders use optical, mechanical, or magnetic indexing for angular measurement. They do not lose their position after power-down, but instead provide absolute position upon power-up without requiring a home cycle or any shaft rotation.
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Incremental rotary encoders are multi-turn sensors that use optical, mechanical, or magnetic index-counting for angular measurement. They contain no absolute reference, but instead count relative to the turn-on position.
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Rotary limit switches use physically-actuated levers to rotate a shaft and operate the contacts in a switch, making them change state.
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Rotary position sensors include potentiometers, resolvers and a variety of magnetic and capacitive technologies. Sensors are designed for angular displacement less than one turn or for multiturn displacement.
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Signal conditioning products provide amplification, filtering, converting, and other processes required to make sensor output suitable for reading by computer boards.
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Signal converters contain inputs for one type of signal and outputs of another. Features can also include filtering and amplification or attenuation.
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VME and VXI products is a general search form that covers peripherals for the VersaModle Eurocard (VME) bus and VME extensions for instrumentation (VXI), an electrical and mechanical standard used mainly with automatic test equipment (ATE). VME and VXI products include switches, extenders, controllers, processors, and interface adapters. More detailed search forms are available for individual areas.
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