Title:
FREQUENCY GENERATOR
Document Type and Number:
Japanese Patent JPS5660316
Kind Code:
A
Abstract:
A frequency generator module has a first generator circuit and a second generator circuit, the frequencies of these circuits being variable by a physical parameter, especially a distance or angular value, with two coils arranged coaxially at a mutual spacing on linear or curved, tubular coil holders, the inductance of these coils being variable by a core displaceable in the coil holder. The combined generator module is connected by a control circuit to a changeover switch which alternately switches the output of one of the two coils to the input of the frequency generator module. A short-circuit ring is arranged in an axially normal plane between the two coils, for the duration of a specific number of pulses of the generator circuit formed from the coil and the generator module. A control and/or regulating device is provided which calculates from certain pulses of successive pulse sequences of the two generator circuits the frequencies (f1; f2) and their difference (f1-f2) and/or a correcting value which is the difference between the actual value and the desired value of the sum total (f1+f2) of the frequencies of the two generator circuits. The corrected frequency difference and/or the value of the physical variable derived therefrom is indicated, or a signal proportional thereto is transmitted.
Inventors:
HORUSUTO GUROSUNAA
GIYUNTAA WAIGAA
GIYUNTAA SHIYUUEKURAA
GIYUNTAA WAIGAA
GIYUNTAA SHIYUUEKURAA
Application Number:
JP13785680A
Publication Date:
May 25, 1981
Filing Date:
October 03, 1980
Export Citation:
Assignee:
DAIMLER BENZ AG
International Classes:
G01B7/00; G01D5/22; G01D5/243; G01D5/20; (IPC1-7): G01B7/00; G01D5/20; G01D5/243
Domestic Patent References:
| JPS3912362Y1 | ||||
| JPS5345547A | 1978-04-24 |
Foreign References:
| DE2532267A1 | 1977-01-13 |