Electrodynamic ultrasonic transformer

Details Electrodynamic ultrasonic transformer Electrodynamic ultrasonic transformer

1981-10-20

1984-06-05

Kreitman, Stephen A.

Measuring and testing

Vibration

By mechanical waves

174126R, G01N 2900

Patent

active

044520867

ABSTRACT:
An electrodynamic ultrasonic transformer, having at least one exciting coil and one receiving coil, for use in ultrasonic nondestructive material testing in order to reduce the dead times and to remove or, respectively, minimize negative influences occurring during the measuring of different test piece material and at distance variations without adversely affecting the signal
oise ratio. Those parts of the exciting coil and/or receiving coil designed for current conducting are preferably made of resistance material which is suitable for structural elements embodying electric resistors, and which material will not essentially obstruct the current flow during the exciting phase of the current, and after termination of the excitation will rapidly reduce the energy stored in stray and coupling fields.

REFERENCES:
patent: 811859 (1906-02-01), Marsh
patent: 4102207 (1978-07-01), Frost
F. M. Sebast et al., "Electrical resistances and Temperature Coef. of Nickel-Copper Chromium and Nickel-Copper Manganese Alloys", Transactions of AES, vol. 29, pp. 569-578, Apr. 1916.
H. D. Holler, "Observations on Failure of 80 Nickel 20 Chromium Alloy at Excessive Temperatures", The Electrochemical Society, Preprint 92-7, pp. 101-107, Oct. 1947.
K. O. Legg et al., "Flaw Detection in Metals Using Electromagnetic Sound Generation", J. Phys. D. Appl. Phys. (GB), vol. 3, No. 10, pp. 61-63, Oct. 1970.
Journal "Rev. Sci, Instrument", vol. 46, No. 7, Jul. 1975, pp. 931-932.

Affiliated with

Also associated with

Rating

Electrodynamic ultrasonic transformer does not yet have a rating. At this time, there are no reviews or comments for this patent.

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1491888