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Data Acquisition System
Data Acquistion
DAQ or DAC – abbreviations for Data Acquisition.
DAQ is a means of inputting and outputing electronic signals to and from the real world, this is why it is also called I/O – Input and Output.
Systems that use DAQ data are automated or programmed devices like PCs, PLCs, PACs, Tablets, Embedded Micros, Industrial Computers, even Win 8, Android & Apple Smart Phones and iPods now.
Many of these instruments can be interfaced directly to programmable devices like Computers, Smart Phones, Tablets etc using various interfacing methods – RS-232/485, Canbus, GPIB, USB, Ethernet & Wifi and Bluetooth Wireless
Instrumentation like DVM, DMM, Scopes, Generators etc are special types of DAQ devices, either converting real world signals or generating real world electronic signals. See Instruments
Many of these instruments can be interfaced directly to programmable devices like Computers, Smart Phones, Tablets etc using various interfacing methods – RS-232/485, Canbus, GPIB, USB, Ethernet & Wifi and Bluetooth Wireless
Some examples of real world signals (data) :-
- Analog in and out – 0-10VDC, +/-10VDC, 230VAC, +/-10 Amps DC or AC and 4-20mA
- Digital out – DC Levels such as TTL/CMOS, Higher voltage DC using Open Collector or FET, AC or DC voltages using Relay, SSR etc
- Digital in – TTL/CMOS, Isolated volts or current DC or AC, Dry contacts
Digital timing I/O, on/off, pulse stream, PWM - Digital timing I/O, on/off, counting, period or frequency
- Digital quadrature for encoders giving distance and direction.
- Analog Conditioning for transducers and sensors like strain gauges, RTDs, TCs, Thermistors etc
DAQ systems take Input signals and convert them into bits (numbers) and store them into memory inside the programmable device.
or
Take digital data inside a programmable device and generate Output signals represented by the data.
There are four main types of converters for DAQ.
SAR =Successive Approximation, used for general purpose applications, can be accurate and fast.
Flash – Used for ultra high speed measurement
Integration – Used in high accuracy devices -DMMs.
Sigma Delta as used in PC sound systems and almost all audio equipment. Very accurate, low noise.
Various interfacing means are used to connect DAQ devices to PCs, PLCs, PACs, Micros, Industrial Computing etc.
The most common methods to connect DAQ devices or boards are:-
- Sockets – ISA, PCI, PCIe, PXI, cPCI, VXI, PCMCIA, Cardbus
- Embedded Sockets – PC-104, PC-104+, ITX, and many more
- UART Ports – RS-232, 422, 485, CanBUS, ModBus
- HDR – High Data Rate Ports – USB, Ethernet
- T&M Instruments – IEEE-488 – GPIB
- Local Wireless – WiFi, Bluetooth, Zigbee.
- Remote Wireless DAQ – GSM and 3/4G
Sensoray
Multifunction analog/digital I/O | Model 826
Our Range of DAQ
MasTec has the largest range of DAQ you will find anywhere in the world. No other company has such a broad range or brands and product.
The DAQ companies have been listed below, however, when searching for DAQ, there is no substitute for asking for your specific needs or doing research on the all the web pages we have using the links.
Sourcing DAQ
If you want MasTec to source a special DAQ/DAS product for you, just email and we will act as your sourcing agent.
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Trends in DAQ
It was very common a few years back to have one converter and a MUX or multiplexer feeding that one converter to make multichannel systems.
Now that the cost is low for ADC or DAC converters, many DAQ units have converter s on each channel, allowing for simultaneous channel sampling, and it removes a layer of in accuracy the MUX added.
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A very complete range of high quality Socket based, USB, Ethernet DAQ units for PCs and many many Embedded form factors
Sockets PCI, PCIe, PXI +Embedded Sockets
UART Ports
Embeeded Forma factors
High Data Rate Ports = USB and Ethernet
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A very complete range of high quality Socket based DAQ units for PCs and Embedded work. New releases on USB DAQ, plus a broad range of UART 485 DAQ DIN Rail modules for industry and laboratory work.
Sockets PCI, PCIe, PXI +Embedded Sockets
UART Ports
High Data Rate Ports = USB and Ethernet
A very complete range of high quality Socket based DAQ units for PCs and Embedded work. New releases on USB DAQ, plus a broad range of UART 485 DAQ DIN Rail modules for industry and laboratory work. Plus speciality DAQ for PAC and distributed IO systems using 485 or ethernet.
Sockets PCI, PCIe, +Embedded Sockets
UART Ports
High Data Rate Ports = USB and Ethernet
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RS-232/485 and USB DAQ
UART Ports
High Data Rate Ports = USB and Ethernet
High Galvanic Isolation with Transducer and Sensor direct inputs, TCs, RTDs, Strain, mV, V, mA, A, ptoentiometer, LVDT, and more.
UART Ports
High Data Rate Ports = USB and Ethernet
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High Voltage AC & DCDAQ
Galvanic Isolation
Transducer and Sensor direct DAQ
UART Ports
High Data Rate Ports = USB and Ethernet
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Wireless Zigbee and Digi Mesh DAQ Endpoints
Wireless Mesh
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A very complete range of high quality Socket based DAQ units for PCs and Embedded work. New releases on USB DAQ, plus a broad range of UART 485 DAQ DIN Rail modules for industry and laboratory work plus wireless DAQ
Very broad range
Sockets PCI, PCIe, +Embedded Sockets
High Data Rate Ports = USB and Ethernet
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A large range or RS-485, Ethernet and GPIB speciality DAQ units and IO.
Sockets – UART Ports – Software Driven Ports – GPIB
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A large range or RS-485, Ethernet and speciality DAQ units and IO. FRnet and Magic cable devices plus Modbus and Profibus DAQ
Sockets PCI, PCIe, ISA
Modbus, RS-485, USB, Profibus and Ethernet
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High Channel Count DAQ
Transducer and Sensor direct DAQ
Plus an excellent range of Loggers & Recorders
Sockets PCI, PCIe
High Data Rate Ports = USB and Ethernet
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Sockets PCI, PCIe, ISA
Modbus, RS-485, USB, Profibus and Ethernet
Sockets PCI, PCIe, ISA
Modbus, RS-485, USB, Profibus and Ethernet
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A very complete range of high quality Socket based DAQ units for PCs and Embedded work. New releases on USB DAQ, plus a broad range of UART 485 and ethernet DAQ DIN Rail modules for industry and laboratory work.
Sockets PCI, PCIe, +Embedded Sockets
UART Ports
High Data Rate Ports = USB and Ethernet
Transducer ready input boards
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Industrial and Lab Grade
PAMUX Parallel
OPTOMUX RS-485
SNAP Ethernet
The leader inPAC DAQ with modules to build complete low to super high channel count industrial and laboratory systems.
UART Ports
High Data Rate Ports = USB and Ethernet
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The complete solution
PAC DAQ high channel count expansion modulkes
Socket PC and embedded DAQ
USB DAQ
Modbus DAQ
Ethernet DAQ
Sockets PCI, PCIe, +Embedded Sockets
UART Ports
High Data Rate Ports = USB and Ethernet
Transducer ready input boards
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Extremely powerful solutions
PCI, PCI-e, PC-104
Ethernet DAQ plus a range of conditioning ethernet modules
Sockets PCI, PCIe, + PC-104
High Data Rate Ports = Ethernet
Transducer ready input boards
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A world leader in high speed DAQ and DSP
Real Time DSP with DAQand Signal filters.
1800 MFLOP DSP
Sockets PCI, PCIe, +Embedded Sockets
Ports = USB and Ethernet
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Wireless DAQ for Rotating Devices
Universal Data Acquisition System (UDAS/USB2250)
UPC2100 Data Acquisition PCI Card
USB2251 Pressure Sensor Interface
Vehicle Data Acquisition System (VDAS)
Vehicle Pressure Acquisition System (VPAS)
Wireless DAQ
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DAQ Used in Climatic Wind Tunnel for Vehicle Testing
A new model automobile must be thoroughly tested in climate extremes before it is put into production. Will the heater keep the passengers warm in a blizzard? Will the cabin be cool enough in the desert summer? Can the engine cope with temperature extremes? Auto manufacturers now answer all of these questions by placing a new prototype automobile in a climatic wind tunnel
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