Data Acquisition System Solutions from Measurement Computing
A data acquisition system is a combination of measurement and control functions
integrated into a single data acquisition board, card or external box. A data
acquisition system is not just the acquisition of data, but rather, it is both
the acquisition and control of data, both in analog and digital form.
A data acquisition system can convert analog signals into a digital output
form, which can be manipulated with software. Using software in conjunction
with a personal computer, analog data can be displayed, logged, charted,
graphed, or stored in memory as needed.
Stored data can later be used and compared with a set of established limits.
Control decisions are made if the stored data is at the limit, above or below
the limit. With repetitive measurement made by a data acquisition system,
continuous monitoring and control can be performed.
Based on matching, meeting, or exceeding the set limits, a digital control
signal (in the form of single-bit output signal) can be used to turn on or turn
off a relay. This in turn can be used to turn on various control elements like
fans, pumps, motors, etc.
Based on the degree of meeting or exceeding the established limits, a precise
analog output signal can be generated. This signal can be used to provide a
complete closed loop control patch providing continuous control of a process.
A data acquisition system does not need to stop with just an analog-to-digital
and a digital-to-analog function. More complex systems can and do included
timers, abundant digital input and digital output control lines, signal
conditioning, and multiplexing.
Advanced systems such as offered by Measurement Computing
Corporation, offer data acquisition system boards, cards or external devices
with multiple analog-to-digital and a digital-to-analog functions. Systems are
available for simple measurement and control applications to highly complex
measurement and control applications requiring 100s of analog and digital
inputs and outputs.
Measurement Computing Corporation offers the largest selection of PC-based data
acquisition and measurement products. Shop our online catalog by selecting a
category above. From PCI, USB, PC/104, ISA, and PCMCIA bus to RS-232, RS-422,
RS-485, and GPIB interfaces; Measurement Computing has everything you need for
your PC-based data acquisition and control applications.
PCI-Based Data Acquisition System
USB-Based Data Acquisition System
Ethernet-Based Data Acquisition System
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