Measuring and testing – Instrument proving or calibrating – Volume of flow – speed of flow – volume rate of flow – or mass...
Patent
1978-02-16
1980-01-08
Kreitman, Stephen A.
Measuring and testing
Instrument proving or calibrating
Volume of flow, speed of flow, volume rate of flow, or mass...
367 13, G01N 2900
Patent
active
041821548
ABSTRACT:
A tubular sleeve with reflector body, water ingress and venting openings is used to produce specific echoes of a test signal launched by an inserted transducer. Amplitude and transit times of the element serve as a transferable standard.
REFERENCES:
patent: 2490452 (1949-12-01), Mason
patent: 3014198 (1961-12-01), Harris
patent: 3665379 (1972-05-01), Trott
patent: 4038629 (1977-07-01), van der Burgt et al.
Hannoschock Kurt
Lather Dieter
Ries Karl
Simoneit Gunter
Terschuren Wolfgang
Kreitman Stephen A.
Mannesmann Aktiengesellschaft
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