Global patent index - EP 0970381 A1

EP 0970381 A1 2000-01-12 - METHOD AND DEVICE FOR DETECTING GAS AND LIQUID VOLUMES USING VOLUMETERS

Title (en)

METHOD AND DEVICE FOR DETECTING GAS AND LIQUID VOLUMES USING VOLUMETERS

Title (de)

VERFAHREN UND VORRICHTUNG ZUM ERFASSEN VON GAS- UND FLÜSSIGKEITSVOLUMINA MIT VOLUMENZÄHLERN

Title (fr)

PROCEDE ET DISPOSITIF DE DETECTION DE VOLUMES DE GAZ ET DE LIQUIDE AVEC COMPTEURS DE VOLUME

Publication

EP 0970381 A1 (DE)

Application

EP 98919074 A

Priority

  • DE 9800889 W
  • DE 19714351 A

Abstract (en)

[origin: DE19714351A1] The invention relates to a method and a device for detecting gas and liquid volumes using volumeters, wherein voltage pulses are produced by magnetic reversal of stationary pulse wire sensors during contactless displacement thereon of a permanent magnet secured to the shaft of a measuring apparatus. Said pulses enable volumes determined by the measuring apparatus to be picked up by a pulse processing device and to be displayed by an electronic meter. Voltage pulses (S1; S2) acting as metering pulses moving in the same direction are generated in rapid succession by two pulse wire sensors (5; 6) having the same polarity. Said pulses are metered by forward-backward counters and are allocated a common voltage pulse (S3) acting as a directional pulse by a pulse wire sensor (17) having an opposite polarity in comparison with the other identical polarity pulse wire sensors. Said pulse is converted into a directional bit enabling the meters to recognize metering direction, and the indicated meter count is used to perform a redundancy check. Meters (35) such as up-down counters (23) or those used for microcontrollers (14) or hardware counters (26) are used as metering devices. Three or even two pulse wire sensors (5; 6; 17) are tightly grouped into a bundle which is arranged vertically in relation to the magnet axis. Said sensors supply voltage pulses which are processed by a corresponding logical unit.

IPC 1-7 (main, further and additional classification)

G01P 13/04; G01F 1/075; G01F 1/115; G01F 3/08; G01F 3/10; G01F 15/06; G01P 3/487

IPC 8 full level (invention and additional information)

G01F 1/075 (2006.01); G01F 1/115 (2006.01); G01F 3/08 (2006.01); G01F 3/10 (2006.01); G01F 15/06 (2006.01); G01P 3/487 (2006.01); G01P 13/04 (2006.01)

CPC (invention and additional information)

G01F 1/075 (2013.01); G01F 1/115 (2013.01); G01F 3/08 (2013.01); G01F 3/10 (2013.01); G01F 15/066 (2013.01); G01P 3/487 (2013.01); G01P 13/045 (2013.01)

Citation (search report)

See references of WO 9843098A1

Designated contracting state (EPC)

AT BE CH DE DK ES FI FR GB GR IE IT LI LU NL PT SE

EPO simple patent family

DE 19714351 A1 19981001; DE 19714351 C2 19990128; EP 0970381 A1 20000112; WO 9843098 A1 19981001

INPADOC legal status

2001-08-08 [18D] DEEMED TO BE WITHDRAWN

- Ref Legal Event Code: 18D

- Effective date: 20010208

2000-11-22 [17Q] FIRST EXAMINATION REPORT

- Ref Legal Event Code: 17Q

- Effective date: 20001006

2000-10-18 [RTI1] TITLE (CORRECTION)

- Ref Legal Event Code: RTI1

- Free Format Text: METHODS AND DEVICES FOR DETECTING GAS AND LIQUID VOLUMES USING VOLUMETERS

2000-01-12 [17P] REQUEST FOR EXAMINATION FILED

- Ref Legal Event Code: 17P

- Effective date: 19981125

2000-01-12 [AK] DESIGNATED CONTRACTING STATES:

- Ref Legal Event Code: AK

- Designated State(s): AT BE CH DE DK ES FI FR GB GR IE IT LI LU NL PT SE