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DE581879C - Electrical remote measuring device with suppression of the lower part of the measuring range - Google Patents

Electrical remote measuring device with suppression of the lower part of the measuring range

Info

Publication number
DE581879C
DE581879C DE1930581879D DE581879DD DE581879C DE 581879 C DE581879 C DE 581879C DE 1930581879 D DE1930581879 D DE 1930581879D DE 581879D D DE581879D D DE 581879DD DE 581879 C DE581879 C DE 581879C
Authority
DE
Germany
Prior art keywords
suppression
measuring
measuring range
measuring device
over
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.)
Expired
Application number
DE1930581879D
Other languages
German (de)
Inventor
Dr-Ing Manfred Schleicher
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.)
Siemens and Halske AG
Siemens Corp
Original Assignee
Siemens and Halske AG
Siemens Corp
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 Siemens and Halske AG, Siemens Corp filed Critical Siemens and Halske AG
Application granted granted Critical
Publication of DE581879C publication Critical patent/DE581879C/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
    • G08C19/00—Electric signal transmission systems
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B19/00—Alarms responsive to two or more different undesired or abnormal conditions, e.g. burglary and fire, abnormal temperature and abnormal rate of flow
    • 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
    • G08C19/26—Electric signal transmission systems in which transmission is by pulses by varying pulse repetition frequency

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Arrangements For Transmission Of Measured Signals (AREA)

Description

Elektrische Fernmeßeinrichtung mit Unterdrückung des unteren Teils des Meßbereiches Bei Anlagen, bei denen der Momentanwert der Meß.größe in die Ferne übertragen wird, läßt es sich nur schwer vermeiden, daß bei sehr kleinen Meßwerten, also am unteren Ende des Meßbereiches, die Anzeige unsicher wird. Bei der Verwendung von Fernmeßgeräten, die nach dem Tachometerprinzip arbeiten, ist die erwähnte Unsicherheit darauf zurückzuführen, daß die Spannung der Tachometerdynamo sehr gering ist und deshalb Störspannungen das Meßergebnis leicht fälschen können. Bei Fernmeßanlagen, die nach einem Impulsverfahren arbeiten, wird die Impulslücke bei kleinen Meßwerten verhältnismäßig groß, so daß der Zeiger des Meßinstrumentes beunruhigt wird. Es hat sich aus den erwähnten Gründen als vorteilhaft erwiesen, den unteren Teil des Meß-Bereiches überhaupt zu unterdrücken.Electric telemetry equipment with lower part suppression of the measuring range In systems where the instantaneous value of the measured variable is in the distance is transmitted, it is difficult to avoid that with very small measured values, so at the lower end of the measuring range, the display becomes uncertain. When using of telemetry devices that work according to the tachometer principle is the mentioned uncertainty due to the fact that the voltage of the speedometer dynamo is very low and therefore interference voltages can easily falsify the measurement result. For telemetry systems, which work according to an impulse method, the impulse gap becomes with small measured values relatively large, so that the pointer of the measuring instrument is concerned. It has proven advantageous for the reasons mentioned, the lower part of the To suppress the measuring range at all.

Zu diesem Zweck wird gemäß der Erfindung als Fernmeßgeber ein überverbrauchszähler verwendet, der erst beim Überschreiten einer bestimmten, über der normalen Anlaufgrenze liegenden Belastung anläuft, dessen Drehzahl aber nach dem Anlaufen der Belastung proportional ist. Der Überverbrauchszähler kann entweder die Tachometerdynamo oder einen Impulsgeber antreiben. Um die Skala des Anzeigeinstrumentes möglichst auszunutzen, empfiehlt es sich, auch an der Empfä4gerseite ein Meßinstrument mit unterdrücktem Nullpunkt zu verwenden, bei welchem der Beginn des Meßbereiches etwa ebenso hoch liegt wie beim überverbrauchszähler.For this purpose, an over-consumption meter is used as a remote meter according to the invention used, which is only used when a certain, above the normal start-up limit is exceeded load starts up, but its speed after the load has started is proportional. The over-consumption meter can either be the tachometer dynamo or drive a pulse generator. In order to use the scale of the display instrument as much as possible, It is recommended to use a measuring instrument with suppressed Use the zero point at which the start of the measuring range is about as high lies as with the over-consumption meter.

Claims (1)

PATENTANSPRÜCHE: r. Elektrische Fernmeßeinrichtung zur Fernanzeige des Momentanwertes der Meßgröße mit Unterdrückung des unteren Teils des Meßbereiches, dadurch gekennzeichnet, daß als Fernmeßsender ein überverbrauchszähler dient, der erst beim überschreiten. einer bestimmten, über der normalen Anlaufgrenze liegenden Belastung anläuft, dessen Drehzahl aber nach dem Anlaufen der Belastung proportional ist. z. Einrichtung nach Anspruch i, dadurch gekennzeichnet, daß der überverbrauchszähler in an sich bekannter Weise als Impulsgeber ausgebildet ist. 3. Einrichtung nach Anspruch i oder a, dadurch gekennzeichnet, daß als Empfänger ein Meßinstrument mit unterdrücktem Nullpunkt verwendet wird.PATENT CLAIMS: r. Electric remote measuring device for remote display the instantaneous value of the measurand with suppression of the lower part of the measuring range, characterized in that an over-consumption meter serves as a remote measuring transmitter, the only when exceeded. a certain, above the normal start-up limit Load starts, but its speed is proportional after the start of the load is. z. Device according to Claim i, characterized in that the over-consumption counter is designed in a manner known per se as a pulse generator. 3. Set up after Claim i or a, characterized in that a measuring instrument is used as the receiver suppressed zero point is used.
DE1930581879D 1930-04-13 1930-04-13 Electrical remote measuring device with suppression of the lower part of the measuring range Expired DE581879C (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE581879T 1930-04-13

Publications (1)

Publication Number Publication Date
DE581879C true DE581879C (en) 1933-08-04

Family

ID=6571145

Family Applications (1)

Application Number Title Priority Date Filing Date
DE1930581879D Expired DE581879C (en) 1930-04-13 1930-04-13 Electrical remote measuring device with suppression of the lower part of the measuring range

Country Status (1)

Country Link
DE (1) DE581879C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4904095A (en) * 1987-12-23 1990-02-27 Societe Europeenne De Propulsion Mounting arrangement for bearings

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4904095A (en) * 1987-12-23 1990-02-27 Societe Europeenne De Propulsion Mounting arrangement for bearings

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