|
| |
 |
|
NOVA™ is a PC-based noise and vibration analyzer
designed for
Windows® XP, 2000, NT, 98. By combining the best signal conditioning and acquisition hardware with
HEM Data's software designed especially for noise and vibration analysis, NOVA offers a
powerful, yet compact,
lightweight, portable analyzer. This combination enables HEM Data to offer key functions
at an affordable price, that is significantly less than the cost of a dedicated analyzer.
NOVA combines the capabilities of a dynamic signal analyzer, spectrum analyzer, digital
storage oscilloscope, stripchart recorder, and data logger. By integrating all of these
components into a single system, the user only needs to learn a single user interface to
perform a variety of tests, reducing the training time in what has traditionally been an
area where expert personnel were required to perform the testing.
A major feature of NOVA that separates it from
the competition is that its powerful features are available in all
domains, including time, frequency, revolution (angular), and order
domains. This means that you have a spectrum analyzer that can also
do time synchronous averaging, digital filtering, integration,
differentiation, correlation, logic, and statistics.
Options to display your data include:
 | Plots:
Y vs. time, Y vs. another channels, Y vs. angle or revs, X,
amplitude vs. frequency, phase vs. frequency, histograms, bands
(octaves: 1/1, 1/3, 1/12), Bode, orbit, Nyquist, real vs.
imaginary, Hysteresis, Lissajous, waterfall, Campbell and
spectrogram. |
| Meters:
dial, bar, digital and indicator |
NOVA's users have three ways to efficiently start
acquiring and analyzing data:
1. One option uses
built-in Wizards
that leads a user through four dialogs to automatically
configure a test instrument. Wizards are oriented toward
specific functions such as FFTs, transfer functions, octave band
analysis, oscilloscope, logger, replay from disk, etc. as seen
in the row of Templates in the NOVA front panel.
NOVA Front Panel
2. A second option is the
pre-configured
instruments that are application specific and capitalize on the expertise and
knowledge designed into NOVA. The application instruments
include: dynamic stiffness, impact testing for modal analysis,
order tracking, noise analysis, etc.
3. After
starting with either of the first two options, the user has the
option to then customize the instrument
without any programming! This
is possible because NOVA is built on HEM Data's award winning
Snap-MasterTM
data acquisition and analysis software.
NOVA has a more powerful user interface as seen by the
front panel above and the dialog below which allows the user to define the
acquisition and frequency analysis with just three entries. The user only
needs to define the Frequency Range (bandwidth), number of spectral lines
and either the number of averages or total capture period. All other
parameters are calculated for the user. It is quite educational to see the
interaction of these various parameters. Specifically, knowing the
time and frequency resolution before initiating the test is an extremely
helpful and practical feature.
Dialog to Define Acquisition
and FFT Parameters
Also Show Related Parameters
NOVA Features
| Expert Technology for the Casual & Expert User - NOVA helps steer users of all
levels through the complexities of noise and vibration testing using its built-in
knowledge and Wizard-based test setup. NOVA even displays the interactions between the
test parameters in terms that are easy for the novice to understand. |
| Advanced Acquisition Hardware - NOVA works with the latest portable, integrated signal
conditioning and acquisition hardware designed for noise and vibration testing. Housed in
rugged enclosures with a footprint
smaller than a laptop, you can design a system
with channel counts ranging from 2 to 64 channels and bandwidth up to 25kHz per channel. |
| Powerful Data Analysis - Capitalize on the time and frequency analysis capabilities in
NOVA not only to analyze your data, but also to create smart instruments with
"Intelligent Processing" to help determine the quality of the data and derive
conclusions from the data such as pass / fail. |
| Customizable for the Expert User - NOVA is built upon Snap-Master™, HEM Data's
powerful data acquisition and analysis program. From customizable data displays to test
specific analysis routines and the unique Sensor Database, noise and vibration experts can
design specialized tests for any NOVA user. |
| To ensure quality data, NOVA incorporates automated calibration and ranging
routines to help match the best hardware settings for the data being analyzed.
|
| Combine NOVA with
DAWNTM
to acquire data from the in-vehicle network for noise and
vibration testing of a vehicle. DAWN supports the following
protocols: CAN, ISO15765, J1979, OBD-II, J1939, J1850 and ISO
9141. Combining NOVA and DAWN has the advantage of using the
production vehicle sensors to measure the vehicle's speed,
engine speed, various temperatures, and some accelerometers.
You, therefore, only need to add the missing sensors required
for your test. |
Target Applications
| Order tracking to analyze rotating machinery |
| Modal analysis, identifying resonant frequencies |
| Frequency response (transfer) functions |
| Power spectrum & power spectrum density |
| Predictive maintenance and diagnosis |
| Production line (pass/fail) testing |
| Product development |
| Identifying noise sources and material's noise absorption properties. |
| Field and in-vehicle testing. |
System Requirements
NOVA requires a Pentium with 128 MB RAM, 10 MB hard disk space a mouse,
and Windows® XP, 2000, NT or 98. NOVA pricing varies depending on the I/O hardware selected, with typical
prices ranging from $8,500 to $25,000. Special upgrade pricing is available for current
Snap-Master users.
Related NOVA Topics
Examples
Specs
Models
FAQs
Info by Mail
|
|
|
