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DAQ systems, loggers and recorders show off
A roundup of products new to the market shows advances in data loggers, digital recorders and complete DAQ systems are making it easier for machine builders to use in distributed DAQ applications.
08/15/2006
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By Rick Pedraza, Managing Editor, Digital Media
THE MARKET for data acquisition (DAQ) boards, modules, and software is poised to expand to nearly $1 billion by 2009, according to analysis from Frost & Sullivan. The report examines current DAQ products used by OEMs and end users, and their likely requirements through 2009. It predicts sales to reach $823.3 million, with the data acquisition modules market alone expected to grow at an annual rate of 13.4% during this period.
On the Ethernet front, the market also has seen considerable growth in distributed DAQ applications. Market analysis provided by Venture Development Corp. shows revenues from distributed DAQ applications constituted approximately 20% of the total DAQ market’s revenues in 2005, and they continue to find increased acceptance.
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While demand for data acquisition systems, data loggers, and recorders continues to grow at an accelerated pace, our rundown of new systems and devices for industrial machinery applications shows technological advances are keeping up with how DAQ is being used by controls engineers.
For example, systems and devices used to measure acoustics, vibration, shock and other signals are being introduced with thousands of I/O channels. Also, many new devices presented in this roundup now can be mixed and matched in combination, mostly for applications that demand a variety of industrial measurements with full isolation.
Advances in data recorders include adoption of wider bandwidths for data-collection applications. Several of the new data loggers presented have gone ultra-compact and include internal sensors as a second temperature channel. Portable DAQs shown here provide high-resolution recording to a hard drive, eliminating the need for tape recording.
USB-based, Ethernet-based, and data-logging DAQ devices with out-of-the-box functionality are the latest in PC-based data acquisition. Many new devices support Modbus and TCP protocols, enabling communication with third-party software drivers and HMI/SCADA packages. Network-enabled data logging and alarming systems provide remote monitoring and recording of instrument data.
In addition, distributed I/O is being used more often to collect data from remote sensors and other instrumentation, and provide process control and distributed I/O capabilities. Other advances include DAQ devices that provide connectivity and remote monitoring, converting numerous protocols simultaneously.
Product Roundup:
DAQ systems, loggers and recorders
Backpack Expander With Isolation
DI-78B expansion backpack accepts up to 16 8B-style modules for bench top or portable data acquisition connections. Measurement types include thermocouple, voltage, strain, frequency, process current (4-20 mA), RTD, and potentiometer. Modules can be mixed and matched for a variety of industrial measurements with the convenience and safety of full isolation. Dataq Instruments; 330/668-1444; www.dataq.com
Hard-Disk Data-Recording
Teac DS-Series hard-disk instrumentation data recorder provides digital acquisition, storage, and data file retrieval for wide-bandwidth data-collection applications. Features include internal RAID storage as the recording media, high-capacity, easily accessible data storage, and sampling rates from 20 kHz to 1 MHz per channel for a usable frequency bandwidth of 8 kHz to 400 kHz. Data is recorded in digital file format and can be transferred from the internal hard drive to a networked PC via a Gigabit Ethernet connection. R.C. Electronics; 805/685-7770; www.rcelectronics.com
Data Logger With Thermocouple Input
Micro T/C temperature logger stores up to 16,383 temperature readings from a variety of thermocouples. The ultra-compact (0.6x1.4x2.15 in) unit automatically performs cold-junction compensation and linearization, and provides logged temperature data from its internal sensor as a second temperature channel. The lithium battery-powered unit records the time and date stamped temperature readings in °C, °F, °K, or °R at user-definable recording intervals from 2 sec to 12 hours. Telatemp; 800/321-5160; www.telatemp.com
PC-Based DAQ Catalog
DAQ catalog introduces the latest USB-based, Ethernet-based, and data logging DAQ devices. It presents more than 50 different PCI boards, and summarizes DAQ products for popular PC buses, including ISA, PC/104, PCMCIA, serial I/O, GPIB, plus signal conditioning. It presents a range of software, including TracerDAQ for out-of-the-box functionality; SoftWire and DasyLab for creating applications without writing code; and Universal Library for high-level functions and drivers for Windows-based languages. Measurement Computing Corp.; 508/946-5100; www.mccdaq.com
Process Control and Distributed I/O Network
Net Concentrator system collects data from remote sensors and other instrumentation, and provides process control and distributed I/O capabilities. It stores up to 64,000 points of time-stamped data, and can be configured to store data from one or all of its input channels. Sampling rate is user-selectable between once per second to once every 24 hours. Features include 20-bit measurement resolution, high signal-conditioning capabilities, and data rates up to 100 megabits per second. Moore Industries; 818/894-7111; www.miinet.com
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