Wind speed and wind direction signal generator
US5038607A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jan 4, 1990 |
| Grant date | Aug 13, 1991 |
| Priority date | — |
| Expiry date | Jan 4, 2010 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01P5/07
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A wind speed and wind direction signal generator includes first and second pulse signal generators each with a respective stator and rotor. The stator for each pulse generator has at least two stator coils mounted at a radial angle relative to each other in the direction of rotation of a rotor so that pulse signals excited on the stationary output lines of the two stator coils are phase shifted relative to each other at a phase detectable angle. The rotor has at least one permanent magnet with two poles spaced from each other for rotation relative to the respective stator coils and for exciting the pulse signals on the stator coil stationary output lines. First and second wind propellers are secured to the respective rotors and are oriented to compass directions at approximately 90.degree. defining a quadrant of a compass coordinate system. The wind propellers cause rotation of the respective rotors at respective frequencies proportional to first and second wind speed components. Phase detectors detect the direction of phase shift of pulse signals from each pair of stator coils from the first and second pulse signal generators. Counters count the pulses from the respective signals …
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.