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VXP - Vibration eXPert
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The VXP is the most powerful system available for vibration
based maintenance. VXP performs helicopter rotor track and balance, component
balancing, engine analysis and complex vibration surveys with ease. VXP uses
the Windows™ operating system to simplify operation and provide seamless
integration with application software.
The VXP is designed to support all aircraft vibration test and
balancing requirements, present and future. The digital signal processor in
the acquisition unit supports spectrum analysis, multi-plane balance,
narrow-band tracking and broadband vibration tasks. |
VXP Features
- Crisp, sunlight readable,
active-matrix color display
- Easy to use touch screen interface
- Fast six channel simultaneous
data acquisition
- Expanded Smart Chart™
capabilities for balancing and analysis procedures
- Comprehensive input
capabilities with 48 vibration, 6 photo cell/mag, 2 FasTrak™, and
accessory channels
- Portable, On-Board,
Commercial and Military configurations available
- Performance of 75 KHz
frequency range, resolution to 51,200 lines and >90 dB dynamic range
- Instant feedback of
maintenance actions with on-aircraft printer
- Clear on-screen help with
graphics and troubleshooting procedures
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System Components
The VXP System has two main components - the hand held computer
and the acquisition unit. The VXP meets MIL Specs for environment and EMI. The
fully ruggedized design means greater reliability and trouble free operation in
the harshest flight-line conditions. Additional EMI hardening for shipboard
operation is available as an option. |
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Acquisition Unit
The VXP Acquisition Unit acquires and processes signals from a wide range of
sensor types. The acquisition unit uses the latest signal conditioning, digital
signal processing (DSP), data conversion, and memory technologies. An expansion
connector allows a quick single cable connection to pre-wired aircraft. |
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Display Unit
The display unit is a ruggedized, portable Pentium™ computer. It displays
menu selection, acquired data calculated solutions and other information. The
internal disk drive provides vast data storage capacity. Bright clear displays
and graphics are presented on an active-matrix display. The computer works with
Windows application program and standard PC peripherals.
The heart of the VXP is a rugged laptop, with all the
software necessary to acquire data, perform vibration analysis, and store the
results. |
Touch screens speed data entry |
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Accessories
The VXP kit uses the FasTrak Optical Blade Tracker, Velocimeter,
and other Chadwick sensors, cables and accessories. The VXP also interfaces
directly to a wide range of tother sensors used in the industry.
For application where the use of carry-on equipment is not
practical, the panel mounted Cockpit Control Unit becomes the user interface.
Smart Chart™ Software
As with Chadwick's previous generation (the 8500 series), VXP's
data acquisition is straightforward and maintenance solutions are clear and
unambiguous. The VSP adds flexibility to data acquisition and solution editing
while VXP's graphics give excellent Track Trend Plots, Polar Plots and
solution/option displays. All vibration limit exceedances are displayed
instantly.
Routes and Spectrum
An aircraft "Route" program in the VXP automates the
vibration survey process and saves precious flight time. Go/No-Go limit checking
is performed automatically and out of limit components are displayed to speed
aircraft troubleshooting. With VXP's 75KHz frequency range and high resolution
FFT's, gear and bearing vibrations can be analyzed to detect problems before
costly failures occur. Complex aircraft surveys with multiple sensors are
performed accurately and quickly.
Monitor: The Invisible Crewman
Using its Monitor function, VXP acquires, processes and records
data from sensors at prescribed intervals, all without user intervention. The
recorded and processed data can be used for real-time flight crew information
or downloaded for post-flight analysis. The VXP's large internal memory and
optional PCMCIA memory card stores several days of typical flight data.
VXP Specifications
Acquisition Unit Balance Measurements
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Amplitude accuracy
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± 2%
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Phase resolution
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1 degree
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Frequency range
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180 to 60,000 RPM
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Harmonics
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1 to 5
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Simultaneous channels
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4 vib., 1 azimuth, 1 FasTrak
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Vector operations
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A, (A+B)/2, (A-B)/2
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Track Measurements with FasTrak
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Track height accuracy
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± 2 mm
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Lead lag accuracy
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± 0.5 mm
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Spectrum
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Frequency ranges
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0 - 20 Hz to 0 - 75 KHz
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Frequency resolution
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400 to 51,200 Lines
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Zoom
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Yes
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Window types
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Flat-top, Hanning, Kaiser-Bessel, Uniform
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Simultaneous channels
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4 vib., 1 azimuth
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Dynamic
Range
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>90 dB
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Averaging
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Linear, Peak hold
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Interfaces
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Magnetic Pickup / Photocell
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4 ea
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Tachometer
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4 ea
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Photoprobe ( high speed)
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2 ea
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Velocimeter
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16 ea
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Accelerometer (ICP)
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26 ea
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Accelerometer (HTA)
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6 ea
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Discrete Signal I/O
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6 ea
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Strobex
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1 ea
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FasTrak
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2 ea
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Serial Interface
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3 ea
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Cockpit Control Unit
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1 ea
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PCMCIA Type 2 Card Slot
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1 ea
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USB
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1 ea
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Internal aircraft databus interface slot
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Processing
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32 Bit Microprocessor (CPU)
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Digital Signal Processor (DSP)
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RISC based Time Processor (TSP)
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Physical
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Dimensions
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7.1 W x 4.6 H x 10.2 D (inches)
180 W x 117 H x 259 D (mm)
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Weight
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6.5 Lbs, 2.95 Kg
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Power Requirement
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18 to 32 VDC
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Operating temperature
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-30° to +60° C
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Storage temperature
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-55° to +85° C
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VXP Display Unit
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Dimensions
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9 W x 1.7 H x 7.4 D (inches)
229 W x 43 H x 188 D (mm)
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Weight
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3.8 Lbs, 1.7 Kg
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Power Requirement
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15 VDC (supplied by AU)
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Processing
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Intel Celeron™, 300 Mhz
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Display
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Color Active Matrix, Sunlight readable
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Pointing Devices
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Touch pad and touch screen
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Disk drive capacity
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4.3 GB
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Memory
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64 MB
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Interfaces
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RS-232, USB, PCMCIA Type 1, 2
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Chadwick-Helmuth reserves the right to change specifications
without notice. Celeron and Pentium are trademarks of the Intel Corp., Windows
is a trademark of Microsoft Corp.
Warranty
New equipment comes with a 1 year limited warranty
from the date of purchase.
Please note that the terms and conditions of these
warranties are subject to change without notice.
Current Stock
Serviceable kits in stock, new available upon request. Please contact us for a quote.
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Turbine
Traders
offers sales, calibration and repair for Chadwick-Helmuth VXP acquisition unit, display unit and peripherals. |
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