Method for determining error sources in a wheel balancer
US4338818A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 28, 1980 |
| Grant date | Jul 13, 1982 |
| Priority date | — |
| Expiry date | Jul 28, 2000 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01M1/225
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Force transducers are coupled to the shaft of a wheel unbalance measuring device to provide periodic electrical signals indicative of unbalance forces. Operation of the system while a known unbalance is mounted on the shaft provides data from which calibration constants for the system are calculated. The measuring system is adaptable to implement certain system self diagnostic processes. The system may continuously drive the shaft and display the force transducer output peak values so that the transducers may be monitored for excessive noise and for normal operation. The balancer shaft may also be run continuously and two plane unbalance displayed so that the stability of the system may be monitored. In each of the latter two diagnostic capabilities readings are taken by the system over a predetermined number of shaft revolutions so that noise frequencies imparted to the data by the drive components may be substantially eliminated.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.