Technical Notes
If you have a balance related topic you would like to see covered, contact us.
Technical Notes, Memorandums
Brief of AIAA recommended practice for terminology and calibration methods
Maximum Gage Excitation Voltage Limits for Task Balances. D. D. McMurchy, 1977
Lubrication of Balance and Sting Components, P.W. Laut, 1976
Wind Tunnel Balance Calibration Correlation. Willard Smith, 1972
Calibration and Storage of Task S/G Balances. Inder Chabra, 1963
Company Literature
Forms and Tools for balances:
- Balance Inspection Form
- Balance Constant Conversion Form
- Taper Pins and Installation Tools
- Rcal and Shunt Resistor Values and Calculated Outputs
- Shunt Value Creation
- Balance Pin Hole Location, standard format for Task/Able balances
- Conventional force and moment polarities for balances
- Typical wiring connections of Task/Able balances to Ames wind tunnel data system
Links
-
Task/Able balance purchases and repairs by
-
Aerophysics Research Instruments
1869 Pomona Road, Unit A
Corona, CA 92880
951-340-4694
aeroinstruments@sbcglobal.net
(Aerophysics acquired much of the intellectual property from Task/Able)
Interactive Guide to Strain Gage Technology by MicroMeasurements, Inc.
Triumph Aerospace Force Measurement Systems (Triumph acquired Allied)
Strain Gauge Balance Paper presented at the ISA 46th International Instrumentation Symposium (link pending)
Capabilities of NASA Ames’s Automated Balance Calibration Machine (link pending)
AIAA Ground Testing Technical Committee (GTTC) home page
GTTC New Member Orientation (Power Point doc)
Following sites are limited to Ames Research Center only
Definitions
-
Shunt Calibration: The production of a calibration signal by temporarily connecting a resistor in parallel with resistive components in the arm of a Wheatstone bridge to simulate a specific decrease in resistance of those components.
Shunt Calibration Resistor: Resistor temporarily installed in parallel with resistive components in a Wheatstone bridge arm to simulate a specific decrease in resistance of those components.
Wind Tunnel Related
Tri Models, Inc., wind tunnel models and test hardware.
NACA Report 1135 on Equations, tables, and charts for compressible flow
Download PDF of NACA-1135
Wind tunnel quiz by the NASA Observatorium, a public access site.
Webmaster:
Michael Wright michael.f.wright@nasa.gov
Last modified on 7.1.08