Differential pressure measuring apparatus

Details Differential pressure measuring apparatus Differential pressure measuring apparatus

1981-10-26

1984-01-31

Woodiel, Donald O.

Measuring and testing

Fluid pressure gauge

Photoelectric

356358, G01L 900

Patent

active

044282397

ABSTRACT:
A differential pressure transducer of the diaphragm displacement type uses optical techniques to measure disphragm displacement. White light from a source is conducted by optical fibres to the transducer and interference is produced between light reflected at a thickened region of the diaphragm and a partially reflecting end face of the light conductor which is lapped flat and parallel to the diaphragm surface. The interfering reflected light is conducted back to a prism where it is dispersed onto photo-arrays. The wavelengths of dark fringes in the spectrum are measured to determine the displacement of the diaphragm. Measurements can be made on both sides of the diaphragm and used to eliminate dependence on reflective index.

REFERENCES:
patent: 2591666 (1952-04-01), Barkas et al.

Affiliated with

Also associated with

Rating

Differential pressure measuring apparatus does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Differential pressure measuring apparatus, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Differential pressure measuring apparatus will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2340296