VXP Balancer Analyzer

Zing Test Carry-On VXP
The Vibration Expert (VXP) is the most powerful system available designed to support all aircraft vibration test and balancing requirements present and future and performs helicopter rotor track and balance, component balancing, engine analysis and complex vibration surveys.
- High-Performance Track, Balance & Vibration Analysis System for helicopters and fixed-wing aircraft using an “Optical Tracker” and “Advanced Smart Chart”, for quick Track & Balance data collection and integrated Track & Balance solutions, saving flight time or single test flights.
- Calculated adjustments respect current rotor settings and given limits.
- Application Kits available for many different aircraft types.

VXP – Vibration eXPert
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.
System Components
The VXP System has two main components – the hand held computer (DU) and the acquisition unit (AU). 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.
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

Acquisition Unit (AU)
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.

Display Unit (DU)
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.

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 other 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 serie), VXP’s data acquisition is straightforward and maintenance solutions are clear and unambiguous. The DSP 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 |
|
Amplitude accuracy | ± 2% |
Phase resolution | 1 degree |
Frequency range | 180 to 60,000 RPM |
Harmonics | 1 to 5 |
Simultaneous channels | 4 vib., 1 azimuth, 1 FasTrak |
Vector operations | A, (A+B)/2, (A-B)/2 |
Track Measurements with FasTrak |
|
Track height accuracy | ± 2 mm |
Lead lag accuracy | ± 0.5 mm |
Spectrum |
|
Frequency ranges | 0 – 20 Hz to 0 – 75 KHz |
Frequency resolution | 400 to 51,200 Lines |
Zoom | Yes |
Window types | Flat-top, Hanning, Kaiser-Bessel, Uniform |
Simultaneous channels | 4 vib., 1 azimuth |
Dynamic Range | >90 dB |
Averaging | Linear, Peak hold |
Interfaces |
|
Magnetic Pickup / Photocell | 4 ea |
Tachometer | 4 ea |
Photoprobe ( high speed) | 2 ea |
Accelerometer (ICP) | 16 ea |
Accelerometer (HTA) | 26 ea |
Discrete Signal I/O | 6 ea |
Strobex | 6 ea |
FasTrak | 1 ea |
Serial Interface | 2 ea |
Cockpit Control Unit | 3 ea |
PCMCIA Type 2 Card Slot | 1 ea |
USB | 1 ea |
Internal aircraft databus interface slot |
|
Processing |
|
32 Bit Microprocessor (CPU) | |
Digital Signal Processor (DSP) | |
RISC based Time Processor (TSP) | |
Physical |
|
Dimensions | 7.1 W x 4.6 H x 10.2 D (inches) / 180 W x 117 H x 259 D (mm) |
Weight | 6.5 Lbs, 2.95 Kg |
Power Requirement | 18 to 32 VDC |
Operating temperature | -30° to +60° C |
Storage temperature | -55° to +85° C |
VXP Display Unit |
|
Dimensions | 9 W x 1.7 H x 7.4 D (inches) / 229 W x 43 H x 188 D (mm) |
Weight | 3.8 Lbs, 1.7 Kg |
Power Requirement | 15 VDC (supplied by AU) |
Processing | Intel Celeron™, 300 Mhz |
Display | Color Active Matrix, Sunlight readable |
Pointing Devices | Touch pad and touch screen |
Disk drive capacity | 4.3 GB |
Memory | 64 MB |
Interfaces | RS-232, USB, PCMCIA Type 1, 2 |
Honeywell reserves the right to change specifications without notice. Celeron and Pentium are trademarks of the Intel Corp., Windows is a trademark of Microsoft Corp. |
Visual Blade Tracker “Strobex 135M-12” P/N 8620


It requires “Tip Targets” on the blade tip which are usually part of the Application Kit for V2K(+), Carry-On VXP and 8500C(+).
Observed Track & Lead/Lag data are either recorded on a tracking record sheet or entered in the 8500C(+) “Smart Chart” to be respected in the calculated Track & Balance adjustments.
Optical Blade Tracker “FasTrak” P/N 11800-3


When used with Carry-On VXP the Track & Lead/Lag data are collected simultaneously while measuring the dynamic balance.
For use at night, a Retro Reflective self-adhesive tape is used at the trailing edge of the rotor blades to reflect the emitted IR light of the IR LCD ring below the cover glass.
Portable Printer “DPU-414-M”


This line printer makes it comfortable for the user, to get printouts at the aircraft, without the need of a PC Printer in an office.
Its rechargeable battery allows printing even without supply power from the aircraft. The rechargeable battery is charged via the Acquisition Unit of the Carry-On VXP.
Vibration Sensors


High Temp. Accelerometer used for vibration test and analysis on turbine engines.
Accelerometer 4177B, P/N 4109 used for the legacy VIBREX System with Balancer 177M-6.
Azimuth Sensors


Photo Probe , P/N 10200-1 typically used as RPM and azimuth reference for dynamic balance measurement of tail rotors, drive shafts and blowers, with 8500C(+) and Carry-On VXP.
Photo Probe , P/N 12900 typically used as RPM and azimuth reference for dynamic balance measurement of tail rotors, drive shafts and blowers, with V2K(+)
Sensor Cables


Magnetic Pickup Cables, P/N 10808-X available in different lengths, used for V2K(+), Carry-On VXP and 8500C(+).
Photo Probe Cables, P/N 10185-X available in different lengths, used for V2K(+), Carry-On VXP and 8500C(+).
Azimuth Reflectors and Tip Targets


The Reflector Set P/N 3300 is applicable as Azimuth Reflectors for the Photo Probe P/N 10200-1 as well as for the Tip Targets 3428-2/-4.
The full selection of retro reflective material for use as Tip Targets with out bracket or as spare for Tip Targets is shown and described under “Details”.
Basic Sensor Brackets

The Photocell Bracket P/N 10423(-1) is used for installation of the Photo Probe , P/N 12900.
Aircraft specific Brackets for Accelerometer 4177B and Velocimeter 7310 are offered as part of Application Kits, if needed.
Application Kits

The required Application Accessory is quoted specifically for the various “Portable Systems” and aircraft/engine type.
Brackets and Interrupters


Interrupters are aircraft specific parts made of magnetic Stainless Steel which generates an RPM and azimuth reference when passing the Magnetic Pickup.
Brackets and Interrupters are available for many helicopter and fixed-wing aircrafts, as part of the Application Kit for “Zing® Test” Systems.
Adapter Cables


Breakout Cables are used for aircrafts which have a partly or complete hardwiring for DC Supply power and sensors of the “Zing® Test” Systems.
Application Software


The “Advanced Smart Charts” of the Carry-On VXP allow simple/quick data collection of Track & Balance of one or multiple regimes and calculate rotor adjustments for Track and/or Balance respecting current settings and rotor limits.
For 8500C(+) Chart Sets are provided in form of a 3.5” Floppy Disk, containing “Smart Charts” available for almost any helicopter and turboprop aircraft type as well as for some turbofan engines.
Precision Tab Tools (optional)


Precision Tab Tools are available for many different helicopter types from Honeywell, supplied with calibration plates and instructions and partly with a specific carrying case.