In measurement technology, data acquisition (DAQ) is the area responsible for recording and processing a physical quantity (e.g. voltage, temperature, speed).
The field of PC-based data acquisition uses the computer as a tool to start scans, save and analyze signal values. In this case, physical quantities are recorded directly as voltages or by means of a sensor and are conducted to a data acquisition system connected to the PC. In the data acquisition unit, the recorded signals are digitized by the analog-to-digital converter (ADC), allowing for the recorded signals to be readable and utilizable by the PC.
Since measurement tasks have extremely different requirements for a measurement system, a large variety is available. When choosing a suitable data acquisition system, it is advisable to consider the following aspects:
• type of signal to be recorded
• required mobility
• environmental conditions
• PC interface
• price – performance – quality
Therefore, the “DATA ACQUISITION” catalog from BMC Messsysteme GmbH (bmcm) presents a wide range of internal and external measurement systems using different PC interfaces (USB, LAN, PCI, ISA, PC/104, CAN, RS232).
The bmcm measuring cards integrated in the PC guarantee high noise suppression and – because of short latencies – are particularly suitable for controlling.
External measurement systems, on the other side, feature great flexibility and mobility – ideal for connecting to a laptop.
With the LAN data acquisition systems from bmcm remote measurements across great distances can easily be realized.
Unrivaled in the field of USB measurement technology concerning price-performance ratio is the new 16-bit data acquisition system USB-AD16f recording signals with 250kHz total sampling rate galvanically isolated.
A special type in data acquisition are data loggers providing an integrated memory. As the PC is only necessary to read out and analyze measuring data, they are especially suitable for mobile data acquisition and long-term supervision.
A highlight in this category is the 2. generation of the data logger ePCII-LOG in ETX technology, particularly recommended for mobile use in the automotive area or in harsh environment.
The high-density amplifier measurement systems of the AMS series represent an absolutely new group in the product range of BMC Messsysteme GmbH (bmcm). They are available with integrated LAN- or USB data acquisition system designed as a tabletop unit (42TE) or 19– rack system (84TE). Decisive is the modular concept allowing the user to choose the single components (e.g. 5B amplifiers, connection technology) to create an individual complete system.
The revised edition of the “DATA ACQUISITION” catalog represents a clear and comprehensive impression of the available bmcm data acquisition systems inclusively all mentioned new products. It can be ordered for free at bmcm (–> helpdesk@bmcm.de ) or be downloaded as PDF file from the website (–> http://www.bmcm.de/us/ho-home.html ).
In addition, further product brochures (“AMPLIFIERS”, “SOFTWARE”, “PC-SYSTEMS”) as well as a company profile (“PRESENTATION”) are provided.
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