The proprietary technology
utilizes a unique sensor mounting technique to enable accurate measurement
of bridge resistance for use in real-time correction of thermal errors using
personalized compensation algorithms embedded within the scanners. The
result is an electronic pressure scanning system that provides
state-of-the-art accuracy over the entire scanner operating temperature
after only an initial rezero.The Ethernet-based system directly connects
any combination of up to eight 32 or 64 port DTC scanners to facilitate as
many as 512 channels of pressure measurements. Multiple systems can be
networked for larger channel requirements. The DTC Initium supports software
and hardware triggering of data sets, data packet ID stamping for time
correlation, and data throughput to the host computer at rates as high as
1200 Hz per channel in engineering units. The system also supports other
sophisticated DTC scanner features including programmable deranging
capability and internal manifold position sensing. The system operates from
a single 18-36 VDC unregulated supply.
Windows® based utility software written in Visual Basic is
supplied with the DTC Initium system allowing the user to configure
acquisition parameters such as sample rates, averaging, and thermal update
rates. It also provides diagnostic tools such as accuracy, channel
crosstalk, and leak check routines. The utility software also facilitates
firmware upgrades downloaded to the system via Ethernet, which are made
available at no charge via PSI's website.
