| Flexible,
Accurate, and Powerful Lifecycle Testing Software
Highly flexible
and customizable, the DTS
provides proven and
dependable performance
for a wide range of
product durability and
lifecycle testing
requirements.
Development time is reduced and quality
is
increased with an
application that’s proven
in over a dozen durability
test applications.
Facilitates unattended testing that
accelerates
test cycles, reduces
time to market and lowers
development costs.
Programmed conditions or alarm events
can
generate operator emails,
numeric pages,
audible alerts or trigger
automated responses.
The Durability Test Scheduler (DTS) is a highly
flexible robust, real-time data acquisition and
control application that can be easily integrated
with a wide variety of instrumentation options.
A proven component in many of V I Engineering’s
custom built dynamometer and lifecycle test systems,
the DTS includes advanced mathematical algorithms
to accurately convert actual data channels into
user defined analysis channels (for more detail
on these functions see chart below). With the addition
of several key performance upgrades and a new, easy
to use GUI, it is the perfect software application
for all the commonly required product validation
functions including:
Test Scheduling
Control
Test schedule execution may be in
predefined steps, groups of steps in nested loops,
or dynamically determined by event processing. Output
channels may be determined using a wide variety
of internal variables including iteration counts,
sequence timing or time spent in a specific step.
Outputs can also be controlled in an open-loop manner
(pattern generation) or by specifying a feedback
channel, control parameters, and a set point (PID
control).
Data Acquisition
The DTS supports a host of National
Instruments (NI) I/O and signal conditioning modules
(see recommended hardware
list below).
Modular design facilitates customer
specified instrumentation including GPIB, RS-232
instruments, or CAN
bus communication.
Up to 256 channels available.
Sampling rate at 2 KHz per channel.
Alarms and Events
The DTS Engine features an extensive
alarm and event detection and processing capability.
Single or multiple actions may be specified
in response to alarm conditions.
Alarm or event conditions can trigger
user specified data logging ranges, update of a
user-interface object, altering
of a control output, or the steps in the test sequence.
Data Logging
(three methods supported)
An automatically triggered data file
which logs selected channels to disk at separately
defined rates with
user-defined duration.
A history file, which can log any real
or analysis channel at user-defined intervals.
An event log or action detected or
processed by the DTS can be logged to disk with
a descriptive message and
time stamp.
 Recommended
Hardware
PXI/SCXI Combination Chassis - PXI
1052 with
20 GHz Embedded Controller
- NI 8196
PC Workstation or Laptop with
MXI 4 PXI Controller - NI PXI-PCI8331
kit
DAQ Card - PXI 6250 M
FPGA Programmable I/O - PXI 7830 R
Signal Conditioning
8 Channel Analog Input - SCXI 1125/TB
1313
8 Channel Thermocouple - SCXI 1125/TB
1328
8 Channel Strain Gage - SCXI 1520/TB
1314
8 Channel Accelerometer - SCXI 1531
6 Channel Digital to Analog Converter
-
SCXI 1124/TB 1325
32 Channel Solid-state Relays - SCXI
1163R/TB 1326
32 Channel Digital Input - SCXI 1162HV/TB
1326
8 Channel Frequency Input - SCXI 1126/TB
1327
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