Data Translation expands USB data acquisition.
Data Translation's DT9857 series expands its range of USB data acquisition modules for vibration measurements with 24-bit resolution. The modules provide eight or sixteen analog inputs for IEPE/ICP sensors, such as measurement microphones or accelerometers.
Features include two 32-bit analog outputs, digital I/Os, a 32-bit tachometer input and three counters, supporting a wide variety of acoustic and vibration measurement applications. Using the sync port, up to four modules can be easily connected to build a high-performance vibration measurement system with up to 64 synchronous inputs.
The analog input channels each have a 24-bit Delta-Sigma A/D converter and integrated anti-aliasing filters to ensure high-accuracy data acquisition at a sampling rate of up to 105.4kHz per channel. The 4mA current source for the IEPE/ICP sensor, AC or DC coupling and gains of 1 and 10 are all individually programmable for each input. Two analog outputs with 32-bit resolution and 216 kHz output rate provide a high-precision signal source for any waveform, for very low distortion (THD) sine waves, and for a wide variety of noise signals.
In addition to a 32-bit tachometer input (ffI30 V) for measuring rotational speed, the USB modules also provide two counters for phase measurements, one general-purpose counter/timer and 16 digital I/O channels. The analog and digital inputs and outputs can be run simultaneously and synchronously.
Many hardware trigger functions, such as pre- and post-triggers as well as threshold triggers for any analog input channel, are software programmable and easy to configure.