Gebruder Junghans Gmbh

Immobiliengesellschaft Helmut Fischer Gmbh Co. Kg

Helmut Fischer Gmbh Institut Fuer Elektronik Und Messtechnik

Immebiliengesellschaft Helmut Fischer Gmbh & Co. Kg

Helmut Fischer Gmbh Institut Fur Elektronik Und Messtechnik

Bernhard Scherzinger

Hans Flaig

Helmut Fischer

Thomas Wolf

Friedrich Assmus

Hans-Peter Vollmar

Wolfgang Kindler

Frieder Kuppers

The invention relates to an apparatus and a method for measuring mechanical properties of materials using an indenter which has a predetermined geometry, a device for generating force permitting the indenter to penetrate into a material sample surface of an object of measurement, and a device for measuring the penetration depth, wherein, arranged between a force application portion on which the device for generating force is applied and a shaft with an indenter tip facing towards the material surface of the object of measurement, the indenter has at least one micro-mechanical motion actuator by which at least one radial deflection of the shaft with respect to the force absorption portion of the indenter is capable of being activated or detected.

Device and method for measuring mechanical properties of materials

An apparatus for non-destructive measurement of the thickness of thin layers, has a housing and a probe which is connected to an evaluation unit and to which signals are emitted during a measurement for determining the layer thickness, and having a display apparatus which indicates at least the measurement data from the evaluation unit. At least one further display apparatus is positioned on the housing away from the plane of the first display apparatus.

Hand-held device for non-destructive thickness measurement

The invention relates to a measurement probe, in particular for an apparatus for measurement of the thickness of thin layers, having a housing which has at least one printed circuit board and at least one sensor element which is associated with the printed circuit board, and having a contact cup which is arranged at the lower end of the housing, characterized in that a flexible strip, which has at least one connecting line, is provided on the at least one printed circuit board, and which is passed out of the housing.

Measurement probe, in particular for an apparatus for measurement of the thickness of thin layers

In a circuit for the actuation of a stepping motor for battery-operated instruments, in particular watches, the length of motor drive pulses is altered for the purpose of saving energy. In the process, different loads on the stepping motor and variable battery voltages are taken into consideration. This feature is accomplished by measuring a signal proportional to the current flowing through the field coil of the stepping motor and interrupting the drive pulse to the motor when a predetermined change occurs in the signal. The drive pulses are further limited as to both minimum and maximum length. Advantageously, the stepping motor is actuated and the signal processed by means of a digital circuit technology, in order to provide for complete integration of the circuit.

Control circuit for a stepping motor in battery-operated instruments

An electronic clock with a chime system has exclusively electronic processing for production of a variety of tone signal sequences consisting of known melodies or portions thereof and time-identifying sequences of strokes. The characteristic values of these tone signal sequences are loaded into a ROM memory and can be recalled, as required, by electronic control and release circuits at each quarter, half, three quarter or full hour. The amplitude of the audio output signals is automatically controlled in accordance with the time of day.

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Esslingen, Germany

Bernhard Scherzinger