Measuring and testing – Fluid pressure gauge – Vibration type
Patent
1986-01-31
1987-07-21
Woodiel, Donald O.
Measuring and testing
Fluid pressure gauge
Vibration type
73723, G01L 1100
Patent
active
046809708
ABSTRACT:
A pressure measuring apparatus comprising a diaphragm to which pressure to be measured is applied and a resilient vibrator connected to the diaphragm, which acts to produce a signal based on its natural frequency relative to the pressure, wherein the diaphragm comprises a peripheral circumferential portion, a central fixing portion and a non-planar intermediate portion therebetween, with the central portion being connected to the vibrator and having its edge disposed at a non-perpendicular angle with respect to the vibrator area to which it is connected. The apparatus eliminates adverse influences due to initial distortion, hysteresis of the diaphragm and produces accurate measurements.
REFERENCES:
patent: 2447817 (1948-08-01), Rieber
patent: 4382385 (1983-05-01), Paros
Akazawa Hideo
Kohsaka Fusao
Ueda Toshitsugu
Yamazaki Daisuke
Kojima Moonray
Woodiel Donald O.
Yokogawa Hokushin Electric Corporation
LandOfFree
Apparatus for measuring pressure 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 measuring pressure, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Apparatus for measuring pressure will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-200683