The QUADdaq is
a self contained 4 scanner acquisition
system based on the successful Chell CANdaq. It
provides a total solution to in-model acquisition
acquiring accurate pressure data from the PSI
pressure scanners, voltages and currents from
the Chell I-Daq, and
temperature from the Chell T-Daq.
Pressure Scanners
The QUADdaq takes full advantage of the DTC
pressure scanner technology and makes interfacing
with them straightforward.
The DTC pressure scanners contain all their coefficients in an
EEPROM inside the scanner. They also compenaste for temperature by measuring
the temperature of every transducer. The DTC scanners also contain
a
3X
deranging option and shuttle valve position sense and
all these functions can be accessed by the supplied
software.
With standard scanners, temperature compensation
is also available through the single temperature output
offered by the scanners.
The QUADdaq can also be used with the QD-VP
valve driver which gives sofware control over the pressure
scanner shuttle valve.
Voltage, Current and Temperature
Scanners
The QUADdaq will acquire voltages and currents from the Chell
I-Daq and temperatures from the Chell T-Daq.
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The QUADdaq senses what scanner type is
connected to, either a DTC scanner, a conventional scanner, an I-Daq or a T-Daq.
The appropriate calibration coefficient and algorithms are then employed. This
enables DTC scanners, I-Daqs and T-Daqs to become ‘ plug and play’.
Hardware Trigger
The QUADdaq also has the
option of a hardware trigger. This can be used to synchronise the four
units and to deduce timing information for the measurements taken.
The QUADdaq, like the CANdaq
will operate a high
accuracy and unparalleled high speed making it
suitable for a variety of applications.
These range
from wind tunnels, to education and on-car race
applications.
Software
The software supplied with the QUADdaq allows the
user to configure the acquisition in terms of speed,
averaging and thermal compensation method used.
It also provides a calibration interface, real time
data window and data logging facilities. The
QUADdaq is supplied with a DDE interface so data
can be directly acquired into third party software
such as Excel.
Easy to use wizards are also available to help
configure the QUADdaq to the application. |
