FR2316581A1 - METHOD FOR MEASURING PHYSICAL QUANTITIES AND REMOTE TRANSMISSION OF THE MEASUREMENT VALUE - Google Patents
METHOD FOR MEASURING PHYSICAL QUANTITIES AND REMOTE TRANSMISSION OF THE MEASUREMENT VALUEInfo
- Publication number
- FR2316581A1 FR2316581A1 FR7618451A FR7618451A FR2316581A1 FR 2316581 A1 FR2316581 A1 FR 2316581A1 FR 7618451 A FR7618451 A FR 7618451A FR 7618451 A FR7618451 A FR 7618451A FR 2316581 A1 FR2316581 A1 FR 2316581A1
- Authority
- FR
- France
- Prior art keywords
- transmitter
- line
- short
- receiving circuit
- circuiting
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Classifications
-
- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C19/00—Electric signal transmission systems
- G08C19/16—Electric signal transmission systems in which transmission is by pulses
- G08C19/22—Electric signal transmission systems in which transmission is by pulses by varying the duration of individual pulses
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Arrangements For Transmission Of Measured Signals (AREA)
Abstract
In the method, the measured value is transmitted from a transmitter (3) via a transmission line (2) to a receiving circuit (1). Through the transmission of a feed pulse from the receiving circuit to the transmitter, the measurement is initiated in the latter, the transmitter (3) acknowledging the measured value by short-circuiting the transmission line to the receiving circuit (1). The time period from the activation of the feed pulse until the short-circuiting of the line (2) by the transmitter is defined by the measured value of the physical quantity. When the short-circuit occurs on the line, the receiving circuit once more de-activates the feed power fed to the line, whereby the transmitter is returned to the initial condition. The method makes do with a two-wire transmission line and requires little power due to the respective short-circuiting of the line. The method is suitable e.g. for remote temperature measurement in water heating systems.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AT469775A AT346962B (en) | 1975-06-18 | 1975-06-18 | DEVICE FOR REQUESTING, GENERATING AND REMOTE TRANSMISSION OF MEASURED VALUES IN PULSE LENGTH MODULATED FORM |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR2316581A1 true FR2316581A1 (en) | 1977-01-28 |
Family
ID=3567257
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR7618451A Withdrawn FR2316581A1 (en) | 1975-06-18 | 1976-06-17 | METHOD FOR MEASURING PHYSICAL QUANTITIES AND REMOTE TRANSMISSION OF THE MEASUREMENT VALUE |
Country Status (5)
| Country | Link |
|---|---|
| AT (1) | AT346962B (en) |
| CH (1) | CH608608A5 (en) |
| DE (1) | DE2625714A1 (en) |
| FR (1) | FR2316581A1 (en) |
| SE (1) | SE405764B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3013474A1 (en) * | 1980-04-08 | 1981-10-15 | Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt | SENSOR SYSTEM |
| DE3842484A1 (en) * | 1988-12-16 | 1990-06-21 | Bayerische Motoren Werke Ag | Communications device for motor vehicles |
| CN109765489B (en) * | 2019-01-22 | 2021-02-12 | 南京中感微电子有限公司 | Electric quantity and temperature detection circuit and earphone |
-
1975
- 1975-06-18 AT AT469775A patent/AT346962B/en not_active IP Right Cessation
-
1976
- 1976-05-26 CH CH663076A patent/CH608608A5/en unknown
- 1976-06-03 SE SE7606294A patent/SE405764B/en unknown
- 1976-06-09 DE DE19762625714 patent/DE2625714A1/en active Pending
- 1976-06-17 FR FR7618451A patent/FR2316581A1/en not_active Withdrawn
Also Published As
| Publication number | Publication date |
|---|---|
| AT346962B (en) | 1978-12-11 |
| ATA469775A (en) | 1978-04-15 |
| SE7606294L (en) | 1976-12-19 |
| CH608608A5 (en) | 1979-01-15 |
| SE405764B (en) | 1978-12-27 |
| DE2625714A1 (en) | 1977-01-20 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ST | Notification of lapse |