DE3517781A1 - RC Oscillator with X-measuring capacitors - Google Patents

RC Oscillator with X-measuring capacitors

Info

Publication number
DE3517781A1
DE3517781A1 DE19853517781 DE3517781A DE3517781A1 DE 3517781 A1 DE3517781 A1 DE 3517781A1 DE 19853517781 DE19853517781 DE 19853517781 DE 3517781 A DE3517781 A DE 3517781A DE 3517781 A1 DE3517781 A1 DE 3517781A1
Authority
DE
Germany
Prior art keywords
oscillator
measuring capacitors
measuring
capacitors
capacitor
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Withdrawn
Application number
DE19853517781
Other languages
German (de)
Inventor
Des Erfinders Auf Nennung Verzicht
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
WUEST HEINRICH KG
Original Assignee
WUEST HEINRICH KG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by WUEST HEINRICH KG filed Critical WUEST HEINRICH KG
Priority to DE19853517781 priority Critical patent/DE3517781A1/en
Publication of DE3517781A1 publication Critical patent/DE3517781A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
    • G01D5/12—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means
    • G01D5/14—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage
    • G01D5/24—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage by varying capacitance

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Measurement Of Resistance Or Impedance (AREA)

Abstract

Publised without abstract.

Description

RC - OSZILLATOR FUR X - MESSKONDENSATORENRC - OSCILLATOR FOR X - MEASURING CAPACITORS

In Ö1- und Statorräumen 1 von Pumpen und Getrieben herrschen Temperaturen bis zu +130 Grad Celsius. Der Einsatz von herkömmlichen kapazitiven Näherungsschalter zur Kontrolle einer Leckage scheidet wegen der eingeschränkten Arbeitstemperatur und den zu großen Abmessungen aus. Dies gilt inbesondere für die als Patent DE 1673841 C 3 veröffentliche Ausführung, die es erfordert, den Oszillator ganz oder teilweise in den Kondensator zu integrieren.Temperatures prevail in the oil and stator chambers 1 of pumps and gears up to +130 degrees Celsius. The use of conventional capacitive proximity switches to control a leakage because of the limited working temperature and the too large dimensions. This applies in particular to patent DE 1673841 C 3 published execution that requires the oscillator in whole or in part to be integrated into the capacitor.

Die Lösung dieses Problems erforderte die Entwicklung eines Kondensators 2 , der über eine abgeschirmte PTFE-Leitung 3 mit einem RC-Oszillator 4 verbunden werden konnte. Der besondere Aufbau ermöglicht es nun bei Pumpen und Getrieben im Unter-und Überwasserbetrieb einen oder mehrere Öl- und Statorräume gleichzeitig mit einem RC-Oszillator 4 zu überwachen.Solving this problem required the development of a capacitor 2, which is connected to an RC oscillator 4 via a shielded PTFE line 3 could be. The special structure now makes it possible for pumps and gears in the Underwater and overwater operation one or more oil and stator rooms at the same time with an RC oscillator 4 to monitor.

Der besondere Aufbau des RC-Oszillators ermöglicht es über ein herkömmliches zweiadriges PTFE-Kabel (als Meßkondensator) das Niveau einer Flüssigkeit zu erfassen.The special design of the RC oscillator enables it to be done using a conventional one two-core PTFE cable (as a measuring capacitor) to record the level of a liquid.

Das Niveau oder der Emilsionsgrad können durch ein der Kapazitätsänderung entsprechendes Meßsignal linear oder digital 6 angezeigt werden, oder direkt ein Schaltgerät 7 ansteuern.The level or the degree of emission can be changed by a change in capacity corresponding measurement signal can be displayed linearly or digitally 6, or directly Activate switching device 7.

- Leereite -- void -

Claims (3)

PATENTANSPRÜCllE 1.PATENT CLAIMS 1. Der RC-Oszillator für X-Meßkondensatoren ist dadurch gekennzeichnet, daß an einen RC-Oszillator 4 in C-MOS Technik ein oder mehrere Kabel 3 mit einem oder mehreren Meßkondensatoren 2 angechlossen werden können.The RC oscillator for X measuring capacitors is characterized by that to an RC oscillator 4 in C-MOS technology one or more cables 3 with a or several measuring capacitors 2 can be connected. 2.2. Der RC-Oszillator nach Anspruch 1 ist dadurch gekennzeichnet, daß für die Meßkondensatoren 2 keine besonderen Bauformen erforderlich sind.The RC oscillator according to claim 1 is characterized in that for the measuring capacitors 2 no special designs are required. 3.3. Der RC-Oszillator nach Anspruch 1 ist dadurch gekennzeichnet, daß für eine Niveauregelung ein Meßkondensator, bestehend aus einem zweiadrigem PTFE - Kabel verwendet wird.The RC oscillator according to claim 1 is characterized in that a measuring capacitor for level control, consisting of a two-wire PTFE - Cable is used.
DE19853517781 1985-05-17 1985-05-17 RC Oscillator with X-measuring capacitors Withdrawn DE3517781A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19853517781 DE3517781A1 (en) 1985-05-17 1985-05-17 RC Oscillator with X-measuring capacitors

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19853517781 DE3517781A1 (en) 1985-05-17 1985-05-17 RC Oscillator with X-measuring capacitors

Publications (1)

Publication Number Publication Date
DE3517781A1 true DE3517781A1 (en) 1986-10-16

Family

ID=6270973

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19853517781 Withdrawn DE3517781A1 (en) 1985-05-17 1985-05-17 RC Oscillator with X-measuring capacitors

Country Status (1)

Country Link
DE (1) DE3517781A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0481272A1 (en) * 1990-10-18 1992-04-22 Hottinger Baldwin Messtechnik Gmbh Acquisition and transmission arrangement for measured values

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE956629C (en) * 1954-04-21 1957-01-24 Peters Ag Claudius Device for evaluating a change in status, in particular for displaying the filling level of storage containers of all kinds
US3230519A (en) * 1964-02-13 1966-01-18 Tamar Electronics Ind Inc Capacitive sensing device
CH460370A (en) * 1967-02-15 1968-07-31 Endress Hauser Gmbh Co Arrangement for capacitive measurement of the fill level of a container
DE1275777B (en) * 1965-05-11 1968-08-22 Buna Chem Werke Veb Measuring method, especially for level measurement
GB1213128A (en) * 1967-01-24 1970-11-18 Christopher Ian Arthur Ellis Improvements in or relating to fluid level detecting devices
DE2254808A1 (en) * 1972-11-09 1974-06-06 Grieshaber Vega Kg ELECTRODE INSERT FOR CAPACITIVE LEVEL MEASUREMENT
DE1673841C3 (en) * 1968-03-18 1978-04-20 Werner Dipl.-Ing. 6840 Lampertheim Schaller Non-contact capacitive
DE2521687B2 (en) * 1975-05-15 1979-08-16 Endress U. Hauser Gmbh U. Co, 7867 Maulburg Measuring transducer for capacitive level measurement

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE956629C (en) * 1954-04-21 1957-01-24 Peters Ag Claudius Device for evaluating a change in status, in particular for displaying the filling level of storage containers of all kinds
US3230519A (en) * 1964-02-13 1966-01-18 Tamar Electronics Ind Inc Capacitive sensing device
DE1275777B (en) * 1965-05-11 1968-08-22 Buna Chem Werke Veb Measuring method, especially for level measurement
GB1213128A (en) * 1967-01-24 1970-11-18 Christopher Ian Arthur Ellis Improvements in or relating to fluid level detecting devices
CH460370A (en) * 1967-02-15 1968-07-31 Endress Hauser Gmbh Co Arrangement for capacitive measurement of the fill level of a container
DE1673841C3 (en) * 1968-03-18 1978-04-20 Werner Dipl.-Ing. 6840 Lampertheim Schaller Non-contact capacitive
DE2254808A1 (en) * 1972-11-09 1974-06-06 Grieshaber Vega Kg ELECTRODE INSERT FOR CAPACITIVE LEVEL MEASUREMENT
DE2521687B2 (en) * 1975-05-15 1979-08-16 Endress U. Hauser Gmbh U. Co, 7867 Maulburg Measuring transducer for capacitive level measurement

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0481272A1 (en) * 1990-10-18 1992-04-22 Hottinger Baldwin Messtechnik Gmbh Acquisition and transmission arrangement for measured values

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Legal Events

Date Code Title Description
OAV Publication of unexamined application with consent of applicant
OR8 Request for search as to paragraph 43 lit. 1 sentence 1 patent law
8105 Search report available
8139 Disposal/non-payment of the annual fee