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Analog I/O (113 companies)
- Analog I/O devices process analog signals (e.g., output of transducers) and output the results in analog format.
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Analog-to-Digital Converter (ADC) Chips (86 companies)
- Analog-to-digital converter (ADC) chips transform information from analog to digital form.
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Analog-to-Digital Converters (225 companies)
- 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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Bridge Conditioners (101 companies)
- Bridge conditioners are instruments that provide excitation and support for strain gages, Wheatstone bridges, load cells, and sensors. They also include circuitry for signal conditioning, amplification, and processing.
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Charge Amplifiers and Charge Converters (33 companies)
- Charge converters and charge amplifiers convert the charge output from a piezoelectric, capacitive or other charge-producing sensor to a signal such as analog voltage or current.
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Charge and Capacitive Signal Conditioners (14 companies)
- Charge and capacitive signal conditioning modules or systems amplify, attenuate, filter and/or convert a charge signal from an accelerometer, load cell, pressure transducer, displacement transducer or other type of capacitive sensor.
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Chart Recorders and Strip Charts (244 companies)
- Chart recorders and strip charts are data acquisition tools used to generate a plot, graph or other visualization of data versus time.
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Chart Recording Paper and Consumables (26 companies)
- Paper recording charts and consumables consist of circular charts, strip charts, markers, fanfolds, sheets, pens, and pen arms used in chart and strip recording instruments.
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Counter and Timer Boards (68 companies)
- Counter and timer boards are computer cards that perform digital counting and/or timing functions.
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Current Loop Converters (87 companies)
- Current loop converters convert an analog or digital signal to a current loop output such as 4-20 mA or 0-20 mA.
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Current-to-Voltage Converters (56 companies)
- Current-to-voltage converters scale and convert current signal input to the desired output voltage range.
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Data Acquisition (1528 companies)
- 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 I/O Modules (313 companies)
- Data acquisition I/O modules or cards have both input and output functionality. Digital or discrete I/O modules include on-off signals used in communication, user interface, or control.
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Data Acquisition Computer Boards (171 companies)
- 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 (214 companies)
- 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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Data Acquisition Systems and Instruments (490 companies)
- Data acquisition systems and instruments collect, digitize and process multiple sensor or signal inputs for the purpose of monitoring, analyzing and/or controlling systems and processes.
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Data Acquisition Output Modules (151 companies)
- Data acquisition output modules or cards transfer amplified, conditioned, or digitized signals.
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Data Collection Terminals (121 companies)
- Data collection terminals are portable or handheld devices that are used to input, read, and/or log data. They often have barcode and wireless data transmission capability.
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Data Input Devices
(1093 companies)
- Devices such as a keyboard or mouse, used to interact with other devices or computers for the purpose of inputting data.
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Data Loggers and Data Recorders (748 companies)
- Data loggers and data recorders acquire digital data from sensors and other signals. They are primarily used to store data for subsequent downloads to a host PC, but may also include real-time features such as monitors and alarms.
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Digital I/O (139 companies)
- Digital I/O devices process digital signals (e.g., outputs from a controller) and output the results in digital format.
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Digital-to-Analog Converter (DAC) Chips (82 companies)
- Digital-to-analog converter (DAC) chips convert digital signals that represent binary numbers into proportional analog voltages.
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Digital-to-Analog Converters (143 companies)
- 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 (99 companies)
- 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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Frequency and Pulse Signal Conditioners (17 companies)
- Frequency and pulse signal conditioners accept the output of devices that are specifically designed for frequency measurement and convert or condition these signals to digital data or suitable levels for digitization.
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Frequency Converters and Translators (51 companies)
- Frequency converters and translators scale and/or filter frequency inputs to produce outputs signals with frequencies that are a function of the inputs.
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Frequency-to-Current Converters (13 companies)
- Frequency-to-current converters accept a frequency (an AC signal) and produce an output current whose value is a function of the input frequency.
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Frequency-to-Voltage Converters (74 companies)
- Frequency-to-voltage converters accept a signal and convert its frequency to a corresponding analog voltage level.
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Instrumentation Amplifiers (125 companies)
- Instrumentation amplifiers are differential amplifiers that have been optimized for use with DC signals. They are characterized by high gain, high common mode rejection ratio (CMRR), and high input impedance.
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LVDT and RVDT Signal Conditioners (56 companies)
- 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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Optical Character Recognition (OCR) Products (18 companies)
- Optical character recognition (OCR) products are used to read text from paper and translate it into data that can be manipulated by computers.
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Remote Terminal Units (RTUs) (154 companies)
- Remote terminal units (RTUs) connect directly to sensors, meters, dataloggers or process plants, and collect and transmit data automatically.
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Sensor Multiplexers (50 companies)
- Sensor multiplexers allow the signal delivered to an instrument to be scanned or switched between multiple sensors. The multi-channel testing of multiple sensors/samples increases sample throughput and the productivity of costly instrumentation.
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Sensor Transmitters
(874 companies)
- Standardized measurement packages consisting of a transducer, its power supply, and a signal conditioner / retransmitter that converts the transducer signal into a standardized output.
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Signal Amplifiers (229 companies)
- Signal amplifiers accept signals from sensors and other devices and amplify them to levels suitable for further processing or digitization by computer elements.
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Signal Conditioners (771 companies)
- 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 (522 companies)
- 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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Signal Filters (128 companies)
- Signal filters block or decrease (attenuate) unwanted frequencies or signal wave characteristics.
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Signal Isolators (46 companies)
- Signal isolators must be used when connecting grounded signal sources to grounded signal followers. If the speed control input of an adjustable frequency drive is grounded, any input signal must be ungrounded.
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Signals Intelligence Systems (10 companies)
- Signals intelligence (SIGNT) systems intercept technical and other intelligence-rated information from foreign electronic emissions.
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Spectrum Analyzers and Signal Analyzers (187 companies)
- Spectrum analyzers and signal analyzers display raw, unprocessed signal information such as voltage, power, period, wave shape, sidebands, and frequency. They can provide the user with a clear and precise window into the frequency spectrum.
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Telemetry Receivers and Telemetry Transmitters (295 companies)
- Telemetry receivers and telemetry transmitters are data acquisition components used to gather information from remote locations via wireless communication.
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Temperature Signal Conditioners (200 companies)
- Temperature signal conditioners accept outputs from temperature measurement devices such as resistance temperature detectors (RTDs), thermocouples, and thermistors. They then filter, amplify, and/or convert these outputs to digital signals, or to levels suitable for digitization.
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Voltage and Current Signal Conditioners (26 companies)
- Voltage and current signal conditioners amplify or modulate AC or DC current or voltage and process signals to improve transmission.
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Voltage Converters and Voltage Inverters (109 companies)
- Voltage converters and voltage inverters accept voltage input and provide a scaled voltage output. Conversion types include scaling up a low-level signal, voltage doubling, and inversion (converting a positive voltage to negative and vice versa).
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Voltage-to-Frequency Converter Chips (8 companies)
- Voltage-to-frequency converter chips provide a signal frequency output as a function of an analog input voltage.
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Voltage-to-Frequency Converters (39 companies)
- Voltage-to-frequency converters accept a voltage signal and convert its analog level to a signal with a corresponding frequency.
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Data acquisition and signal conditioning is the processing of multiple electrical or electronic inputs from devices such as sensors, timers, relays, and solid state circuits for the purpose of monitoring, analyzing and/or controlling systems and processes. Major technologies and related instruments of signal generation and transmission include voltage and current signals (conditioned transducers), concentration measurement (high impedance probes), power signals from power supplies, temperature measurement (thermocouples), resistance, strain measurement (strain gauge bridges), excitation, angular position measurement (encoders), speed and flow measurement (count-timers) and digital signals. Major families of data acquisition and signal conditioning are: data acquisition (high level), signal converters, recorders and loggers, and signal conditioning.
Data acquisition devices (DAQ) are a high-level family that essentially covers all of the product areas within this category. Unlike the rest of the data acquisition and signal condition families, the subdivisions within this family are based upon the function of the devices used for data collection and/or analysis. It includes: data acquisition computer boards, input modules, output modules, input/output modules, and instruments and systems.
The family of signal converters includes various data acquisition devices that accept a signal, then filter and output the signal in a different fashion. Mostly, the signal frequency is changed, although some converters may change frequency to voltage and vice versa. Major instruments within this family include: analog-to-digital converters (ADC, A/D), charge converters / amplifiers, current loop converters, current-to-voltage converters, digital-to-analog converters (DAC), frequency converters / translators, frequency-to-voltage converters, signal converters, voltage converters / inverters, and voltage-to-frequency converters.
Recorders and loggers are devices that acquire digital data from sensors and other signaling instruments. They are primarily used to store this data for future download (to a PC) although some styles do have real-time features including monitors and alarms. Others are used to generate charts or graphs, either on a screen, or as continuous printouts for tracking or monitoring. This family includes data loggers and recorders, and chart recorders and strip charts.
Signal conditioners are devices that receive sensor output, then refine, and out put the signal (generally as digital or digitized data) so that a data acquisition computer board can read it. These include bridge conditioners (for Wheatstone bridge style sensors, such as quarter, half, or full bridge strain gauges and accelerometers), instrumentation and signal amplifiers, signal filters, and temperature signal conditioning units.
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