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PCIe cards promise cost-effective data acquisition

Posted: 13 May 2014     Print Version  Bookmark and Share

Keywords:Elsys Instruments  data acquisition  PCIe card  digitiser  LAN 

Elsys Instruments has expanded its line-up of LAN controlled transient recorders with the release of what it describes as a cost-effective series of high resolution PCIe data acquisition cards. According to the company, the TPCE-LE PCIe data acquisition waveform digitising products provide excellent performance in various applications where the acquisition of high speed, high resolution and high precision waveform data is required.

A number of applications benefit from this line of lower cost products, such as education and research programs in schools, universities and laboratories as well as in application fields such as ballistics and explosive tests, acoustic emissions, ultrasonic testing and structural soundness testing.

TPCE-LE modules

Additional uses include power conversion, renewable power research and variable frequency drives as well as electrical traction, engine control, fluorescence and phosphorescence decay studies and particle accelerator control.

The high-precision, high-resolution digitisers claim to offer sophisticated features such as advanced trigger modes, continuous data acquisition mode, single ended and differential inputs, digital input lines and ICP coupling for powering piezo sensors. They enable the development of scalable systems that can be expanded to meet growing data acquisition needs.

Free with each board purchase is the TranAX-LE operating and analysis software as well as LabVIEW Instrument driver, C++/C# and IVI scope class driver.

As with Elsys' existing TPCX and TPCE platforms, the TPCE-LE modules can be housed in any existing TraNET system: TraNET FE transient recorders that hold four to 32 single-ended channels or two to 16 differential channels; TraNET EPC industrial computer frame with 16 slots for a total of 64 channels; and TraNET PPC ruggedized portable computer system with six slots for a total of 24 channels.

All Elsys recorders feature input channels with the unique ability to be individually triggered. For example, four full trigger circuits are available on a four-channel recorder to obtain logic triggering such as "AND" and "OR".

Synchronisation can be established with many as

sociated channels, as well. Advanced trigger modes include slew rate, pulse width, pulse pause, period, missing event, window-in and window-out as well as the usual edge pos/neg triggering with trigger hysteresis values set by the user.

A sophisticated data acquisition mode, ideal for troubleshooting applications, available for the TPCE-LE platform is event controlled recording (ECR) mode. ECR requires a trigger event, but eliminates the dead time between triggers using an overlapping technique of adjacent acquisitions.

The 4- or 8-channel single ended and differential PCIe data acquisition cards boast sampling rate of up to 240MS/s per channel, up to 1GB of memory (128MS per channel) and precision of 0.03 per cent of FSR (typical). The devices also feature 14bit and 16bit vertical resolution, and have very low input noise, added the company.

Pricing for individual TPCE-LE modules starts at $3,400. Pricing for a LAN transient recorder system equipped with TPCE-LE modules is dependent upon recorder and number of channels selected. Delivery is four to six weeks ARO.

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