| Patent Number |
Title Of Patent |
Date Issued |
| 5996412 |
Method and apparatus for measuring acceleration or mechanical forces |
December 7, 1999 |
| A method for measuring acceleration or mechanical forces, the acceleration causing inertial forces, uses a transducer or accelerometer in which at least one piezoelectric element is influenced by a shearing force substantially parallel to the polarization axis of the piezoelectric el |
| 5677487 |
Method and apparatus for measuring acceleration or mechanical forces |
October 14, 1997 |
| A method for measuring acceleration or mechanical forces, the acceleration causing inertial forces, uses a transducer or accelerometer in which at least one piezoelectric element is influenced by a shearing force substantially parallel to the polarization axis of the piezoelectric el |
| 5525900 |
Method for determining the displacement of an object of an electrically conducting material |
June 11, 1996 |
| A method for determining a displacement of an object of an electrically conductive material. The method includes the step of using a transducer to establish an electromagnetic field for creating eddy currents in the object. This results in a first electrical signal representing the i |
| 5400297 |
Method and a system for testing capacitive, acoustic transducers |
March 21, 1995 |
| A method and a system for testing one or more transducers, preferably acoustic transducers, from a central control unit. The transducers are individually connected to the inlet of a preamplifier (4) having a relatively high input resistance (6). A test conduit extends from the centra |
| 4323903 |
Strip chart recorder with a differential capacitor serving as position sensor in a position serv |
April 6, 1982 |
| Strip chart recorders in which the curve is recorded by means of a rotatable pen (11) which traces the curve in a line of contact (14) being a generatrix of a supporting roller (15), suffer from a plotting error originating from the fact that the ordinate of the curve, which should be |
