Carl Schenck Ag

Firma Carl Schenck Ag

Martin Mueller

Volker Guyot

Otfrid Maus

Paul Holdinghausen

Harald Schoenfeld

A wheel balancing machine is started by operating a timing switch to transmit reset signals to a synchronous counter, revolution counter, a divider and an average value counter. The reset signals are then terminated concurrently with the first zero crossing of the imbalance value signal derived from the body to be balanced. The synchronous counter is provided with incremental pulses containing angular information corresponding to the imbalance. After a first pulse sequence corresponding to a 180.degree. angle of revolution of the body to be balanced and further pulses at angles of 360.degree. at the output of the synchronous counter, 180.degree. pulses are supplied to a revolution counter and also are conducted by means of a differentiating member to the reset input of a flip-flop, whose set input is affected via a further differentiating member by unbalance representing pulses.

Method and apparatus for determining the angle of imbalance of a

The invention relates to a process and a device for the digital indication of the extent of unbalance of a part to be balanced in at least one plane when measuring its unbalance in balancing machines. An alternating voltage corresponding to the extent of unbalance is supplied to an integrator. A reference voltage is supplied to cancel out the output voltage of the integrator. While the integrator is being returned to zero, pulses are supplied to a counter which is thereby actuated to display the extent of the unbalance in digital form.

Process and a device for the indication of the extent of unbalance of a

A method and apparatus for deriving mean value signals is disclosed, wherein input signals are compared with signals stored in a first storage device to produce difference signals. These difference signals are added to the signals stored in the first storage device, to produce corrected means value signals, which are in turn stored in a second storage device. The output of the second storage device is transferred to the first storage device, to update the mean value stored in the first storage device.

Method and apparatus for monitoring and/or correcting of a physical

The present circuit arrangement is, for example, useful for producing reference signals in response to the rotation of a body such as a wheel or rotor to be balanced. Source signals are produced in response to the rotation of said body. Circuit means are provided for handling and comparing the source signals in such a manner that the reference signals are provided at an output terminal in response to the occurrence of the center of a source signal or in response to the maximum of a source signal. The transmittal may also be controlled in response to the center and the maximum of a source signal.

Method and circuit arrangement for producing and transmitting electrical

The present circuit arrangement is, for example, useful for producing reference signals in response to the rotation of a body such as a wheel or rotor to be balanced. Source signals are produced in response to the rotation of said body. Circuit means are provided for handling and comparing the source signals in such a manner that the reference signals are provided at an output terminal in response to the occurrence of the center of a source signal or in response to the maximum of a source signal. The production of pulses may also be controlled in response to (i.e., at) the center and the maximum of a source signal.

Method and circuit arrangement for producing electrical reference pulses

In a method and apparatus for processing a pair of d.c. signals representing information having angular and amplitude components, in particular, information relating to the unbalance of a body to be balanced, coordinate transformation means are provided in order to transform the coordinates of the two d.c. signals in response to a control signal, the control signal being continually adjusted in a direction dependent upon the polarity of the outputs of the coordinate transformation means, until one of the outputs of the coordinate transformation means becomes 0. In this case, the control signal corresponds to the angular information of the two d.c. voltages, and the output on the other output terminal of the coordinate transformation means corresponds to the amplitude information. Means are also provided for stopping the adjustment of the control signal, whereby a source of d.c. signals corresponding to angular information may be applied to the inputs of the coordinate transformation means, in order to enable adjustment of the d.c. signals so that they correspond to the same angle as the signal applied to the control input of the coordinate transformation means. The two d.c. signals may correspond to the angular position of a body to be balanced.

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Bickenbach, Germany

Martin Mueller