| 5140860 |
Electrodynamic transducer head |
Roman Koch |
1992-08-25 |
| 4924181 |
Device having electromagnet for providing a magnetic field inclined with respect to the transportation direction of a ferromagnetic body for non-destructive, magnetic testing of the body |
— |
1990-05-08 |
| 4821204 |
Method and device for testing for flaws with the eddy-current principle |
— |
1989-04-11 |
| 4763070 |
Method and apparatus to compensate for lateral changes of a ferromagnetic body during magnetic testing |
— |
1988-08-09 |
| 4750134 |
Device for the non-destructive testing of ferromagnetic bodies and a process for producing values for adjusting the device into an initial state for testing determined by the respective test samples |
Herbert Diehl |
1988-06-07 |
| 4727321 |
Method and device for magnetic and ultrasonic testing of ferro-magnetic objects |
— |
1988-02-23 |
| 4692702 |
Device with two generators for measuring the gradients of magnetic fields |
Herbert Diehl |
1987-09-08 |
| 4689996 |
Method and device for testing electrically conducting objects by means of ultra-sonics |
— |
1987-09-01 |
| 4665752 |
Electrodynamic transducer |
Ewald Kowol |
1987-05-19 |
| 4665751 |
Method for measuring the wall thicknesses of bodies by means of ultrasonic pulses and devices for applying the method |
— |
1987-05-19 |
| 4628261 |
Method and apparatus for separating magnetic field attributable to flaws in a material from magnetic fields attributable to other phenomena |
Ursula Ruth |
1986-12-09 |
| 4596147 |
Electrodynamic transducer head |
Ekkehard Behl, Ewald Kowol |
1986-06-24 |
| 4578999 |
Instrument for testing materials |
Klaus Abend, Wolfgang Bottger, Heinz Schneider, Karl Laudenbach |
1986-04-01 |
| 4564809 |
Eddy current test method with degree of amplification selected in accordance with a compensation signal |
Klaus Abend, Ursula Orthen |
1986-01-14 |
| 4538108 |
Testing arrangement for ferromagnetic bodies including magnetic field detectors extending between two pairs of poles of magnetic field generators spaced longitudinally along the body |
Wilfried Lein |
1985-08-27 |
| 4480477 |
Electrodynamic instrument transformer head |
Ewald Kowol, Ursula Orthen |
1984-11-06 |
| 4452086 |
Electrodynamic ultrasonic transformer |
Karl Laudenbach |
1984-06-05 |