Real-time DAQ board handles vibration application

Submitted by nestorb on Wed, 2006-06-28 09:55.

6/23/2006 -- Test & Measurement World -- The recently announced DT9841-VIB from Data Translation is a real-time DSP data-acquisition Sleek Box capable of accepting eight simultaneous IEPE sensor inputs. The latest addition to the company's Fulcrum II Series of DSP data-acquisition products for USB 2.0, the DT9841-VIB provides excitation, signal conditioning, and anti-aliasing filtering for real-time high accuracy IEPE sensor values.

"The DT9841-VIB is ideal for applications requiring piezoelectric accelerometer readings such as automotive test, acoustics, sonar, and rotating machinery," said Fred Molinari, president, founder and CEO of Data Translation."This system combines the real-time processing power of the 32-bit DSP chip with high-performance analog and digital functions, at an attractive price."

The DT9841-VIB board contains eight, simultaneous 24-bit sigma-delta analog input channels with a sampling rate of 100 kHz per channel. In addition, the board has two, 24-bit deglitched waveform analog output channels to control a shaker table, for example, and stimulate systems under test;16 digital I/O lines for control and monitoring; and three 32-bit counter/timers providing highly accurate timing functions. All subsystems can be run simultaneously and monitored in real-time with an onboard 32-bit floating point processor.

The DT9841-VIB Sleek Box supports the following software programmable IEPE functions for each of its eight analog inputs;

Current source—enable or disable the use of a 4 mA current source

AC/DC coupling—select whether AC coupling or DC coupling is used

Filtering—enable or disable the use of the two-pole, 10-kHz, Butterworth filter.

Price: $5690. www.datatranslation.com