Eddy current measurement of tube element spacing

Details Eddy current measurement of tube element spacing Eddy current measurement of tube element spacing

1997-02-25

1998-04-28

Strecker, Gerard R.

Electricity: measuring and testing

Magnetic

Displacement

165 112, 324202, 32420722, 324220, 324229, G01B 714, G01B 706, G01N 2772

Patent

active

057449520

ABSTRACT:
A method of electromagnetically measuring the distance between adjacent tube elements in a heat exchanger. A cylindrical, high magnetic permeability ferrite slug is placed in the tube adjacent the spacing to be measured. A bobbin or annular coil type probe operated in the absolute mode is inserted into a second tube adjacent the spacing to be measured. From prior calibrations on the response of the eddy current coil, the signals from the coil, when sensing the presence of the ferrite slug, are used to determine the spacing between the tubes.

REFERENCES:
patent: 3225294 (1965-12-01), McClung et al.
patent: 4418574 (1983-12-01), Flournoy
patent: 4645634 (1987-02-01), Roseveare
patent: 4704577 (1987-11-01), Junker et al.
patent: 4965040 (1990-10-01), Huston
patent: 5124641 (1992-06-01), Netter et al.
patent: 5140264 (1992-08-01), Metala et al.
patent: 5200704 (1993-04-01), Clark, Jr. et al.
patent: 5373235 (1994-12-01), Clark, Jr. et al.
patent: 5485089 (1996-01-01), Kuckes
patent: 5589775 (1996-12-01), Kuckes

Affiliated with

Also associated with

Rating

Eddy current measurement of tube element spacing does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Eddy current measurement of tube element spacing, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Eddy current measurement of tube element spacing will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1535604