Switching circuit for radiosonde
US4214207A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 11, 1978 |
| Grant date | Jul 22, 1980 |
| Priority date | — |
| Expiry date | Sep 11, 1998 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01W1/08
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A radiosonde comprising a transmitter, a modulating oscillator, a control circuit for the oscillator and sensing elements to be switched into and out of said control circuit, characterized in that a solid state switching circuit is utilized for switching the sensing elements into and out of said control circuit to produce atmospheric information signals and with the sensing elements out of the control circuit there is produced a reference signal which reflects essentially the same impedance from the solid state switching circuit as is reflected in the atmospheric information signals thereby providing for evaluation of the information signals.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.