Pneumatic measurement apparatus

Details Pneumatic measurement apparatus Pneumatic measurement apparatus

1991-01-15

1992-08-25

Razavi, Michael

Measuring and testing

With fluid pressure

Dimension, shape, or size

G01B 1308

Patent

active

051408465

ABSTRACT:
The apparatus of the invention comprises a measurement chamber fed with gas under pressure by a feed nozzle, a measurement chamber having an outlet nozzle spaced apart from the feed nozzle and including a pressure take-off point disposed between the feed nozzle and the outlet nozzle. According to the invention, a separating partition extends inside the measurement chamber overlying the pressure take-off point and co-operates with the wall of the measurement chamber to determine a volume which is closed in airtight manner at its outlet nozzle end and which is open at its inlet nozzle end in the vicinity of the inlet nozzle.

REFERENCES:
patent: 2692498 (1954-10-01), Knobel
patent: 4059130 (1977-11-01), Cohen
patent: 4420972 (1983-12-01), Hitachi
patent: 4550592 (1985-11-01), Dechape
patent: 4607960 (1986-08-01), Wulff
patent: 4854156 (1989-08-01), Hoeffel et al.
Patent Abstracts of Japan, vol. 7, No. 245 (P-233) [1390], Oct. 29, 1983, & JP-A-58 132 618 (Hitachi Seisakusho) Aug. 8, 1983 *Abrege*.

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