Electricity: measuring and testing – Measuring – testing – or sensing electricity – per se – Frequency of cyclic current or voltage
Patent
1980-03-28
1983-04-12
Karlsen, Ernest F.
Electricity: measuring and testing
Measuring, testing, or sensing electricity, per se
Frequency of cyclic current or voltage
73149, G01R 2704, G01F 1700
Patent
active
043799914
ABSTRACT:
Apparatus and method are disclosed for measuring the volume of a chamber of a meter prover. The meter prover includes a piston adapted for rectilinear movement within said cylinder between a first position and a second position. The volume measuring apparatus comprises an antenna disposed within the chamber and a generator coupled to apply electromagnetic energy to the antenna whereby electromagnetic waves are emanated into the chamber. A detector is coupled to the antenna to detect electromagnetic energy reflected from the chamber and is in turn coupled to a resonant detector in the form of a cathode ray tube, whereby a minimum of the level of the electromagnetic energy may be determined. Further, a frequency detector in the form of a counter, is connected to the output of the generator to detect the frequencies of the generator output at which the minimum level occurs as observed upon a display device corresponding to the establishment of a resonant standing wave within the chamber of the meter prover. The frequency(ies) at which the resonant standing waves are established within the chamber, in turn determine the volume of the meter prover chamber. The electromagnetic field(s) are generated within the chamber of a mode selected so that at a resonant condition within the chamber, the electric and magnetic component fields of the electromagnetic field have a defined relation to the dimensions of the chamber of regular geometry, illustratively, a right circular cylinder.
REFERENCES:
patent: 2491418 (1949-12-01), Schlesman
patent: 3312107 (1967-04-01), Burns et al.
Hall William F.
Ho William W.
Karlsen Ernest F.
Rockwell International Corporation
LandOfFree
Apparatus for accurately measuring the volume of a meter prover does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Apparatus for accurately measuring the volume of a meter prover, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Apparatus for accurately measuring the volume of a meter prover will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-940217