Product specs for National Instruments Corporation 782718-01

National Instruments Combustion Analysis System (NI-CAS) software is a unique LabVIEW plug-in for performing sophisticated in-cylinder combustion analysis and logging for engine R&D; targeted to a wide variety of NI hardware. You can choose from two versions of the software: development and deployment. The first can be used to develop sophisticated PXI-based combustion analysis applications with real-time feedback control capabilities, and the second can be deployed to portable, low-cost NI CompactDAQ hardware.

With NI-CAS software, you can stream raw data to file continuously or by cycle count, time, or file size. Raw data files are stored in NIs popular Technical Data Management Streaming (TDMS) format and include all channel configurations, engine geometry, and custom test data to allow complete reconstruction of the test environment at a later date. Cycle-by-cycle summaries of analysis parameters can also be logged to TDMS files for later review. TDMS is an open file format that you can use to post-process files with a variety of tools, including the NI-CAS software post-processing tools or Microsoft Excel. NI-CASS acts as an ASAP3 slave and can talk to ASAP3 masters such as AVL Puma.

The Development License of NI-CAS software features a LabVIEW toolkit for integrating sophisticated combustion analysis and logging with engine control applications. The toolkit provides several analysis functions, front panel controls, and utilities including data streaming to disk, pre-processing, heat release, pressure metrics, knock analysis, noise analysis, raw data logging, summary data reporting, and post-processing. The Deployment License enables deployment to low-cost, easy-to-use, portable engine combustion analysis hardware bundles. NI-CAS Software for Deployment is a prebuilt LabVIEW executable for Microsoft Windows that targets stand-alone NI CompactDAQ chassis or NI CompactDAQ hardware over USB and Ethernet.

NI-CAS Software supports three timebases: high-speed engine synchronous, high-speed angular-window time domain, and medium-speed time domain. The Deployment License features all of the analysis functions included in the NI-CAS Software for Development except for next-cycle control and FPGA-based engine position tracking (EPT) functions. Engine-synchronous data sampling must take place using optical shaft encoders mounted to the crankshaft.