Title:
ROTOR METER FOR MEASURING AN AMOUNT OF GAS
Document Type and Number:
WIPO Patent Application WO/2012/112030
Kind Code:
A3
Abstract:
A rotor meter comprises a housing that accommodates two rotatable rotors. Gas flowing through the housing causes the rotors to rotate. One of the rotors 11 accommodates a coil 25 and a transmitter (formed by a coil 27 with a ferromegnetic core 29) connected to this coil 25, which transmitter sends a signal the moment a current starts flowing through the coil. The latter occurs if the rotor meter 1 is manipulated by holding a strong permanent magnet against the housing 3. This strong permanent magnet restrains the rotation of the rotors, but at the same time a current starts flowing through the coil. A magnetic sensor 31 switches when a certain field strength of the magnetic field generated by the transmitter is monitored. The signal from the magnetic sensor 31 is subsequently processed by a microprocessor 33 and then recorded in a time-related manner in a memory 37. Based on this recording it is possible to demonstrate manipulatory activity.
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Inventors:
HOEKS PAULUS JOSEPHUS ADRIANUS PETRUS (NL)
Application Number:
PCT/NL2012/050019
Publication Date:
January 16, 2014
Filing Date:
January 12, 2012
Export Citation:
Assignee:
FLOW METER GROUP B V (NL)
HOEKS PAULUS JOSEPHUS ADRIANUS PETRUS (NL)
HOEKS PAULUS JOSEPHUS ADRIANUS PETRUS (NL)
International Classes:
G01D4/02; G01F1/06
Domestic Patent References:
WO2005043091A1 | 2005-05-12 | |||
WO1996003721A1 | 1996-02-08 |
Foreign References:
DE20216283U1 | 2003-01-16 | |||
US20100085186A1 | 2010-04-08 |
Attorney, Agent or Firm:
VERHEES, Godefridus Josephus Maria (CC Nuenen, NL)
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