Sensor system for detecting movements
First Claim
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1. Sensor assembly, comprising:
- an active sensor for sensing a signal voltage and producing an analog signal in response to an air slot between said active sensor and an encoder;
a signal processing device operatively connected to said active sensor for converting the analog signal to a digital signal having a bit sequence comprising an 8-bit word;
a slide register operatively connected to said signal processing device for receiving and intermediately storing the digital signal from said signal processing device;
a state generator operatively connected to said signal processing device and said slide register; and
a current source operatively connected to said state generator for generating an output signal comprising a first current pulse representing motion information and a second current pulse representing additional information, the first and second current pulses separated by a first pause interval, wherein the second current pulse is comprised of an 8-bit sequence having four bits followed by three bits and a parity bit, the three bits representing a numerical value of a field strength of the air slot between the active sensor and the encoder.
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Abstract
The present invention describes a sensor assembly for detecting movements, wherein a sensor signal is produced in an active sensor (1) by an encoder (E) acted upon by the movement, and which includes a first device (2, 3, 4, 5) that permits converting the sensor signal, along with at least one additional information, into an output signal which can be transmitted to an evaluating device, and which is in particular characterized in that a second device (1a) is provided by which a signal voltage that depends on an air slot (d) between the active sensor (1) and the encoder (E) is detected and sent to the first device (2, 3, 4, 5) for transmission as additional information.
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Citations
8 Claims
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1. Sensor assembly, comprising:
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an active sensor for sensing a signal voltage and producing an analog signal in response to an air slot between said active sensor and an encoder;
a signal processing device operatively connected to said active sensor for converting the analog signal to a digital signal having a bit sequence comprising an 8-bit word;
a slide register operatively connected to said signal processing device for receiving and intermediately storing the digital signal from said signal processing device;
a state generator operatively connected to said signal processing device and said slide register; and
a current source operatively connected to said state generator for generating an output signal comprising a first current pulse representing motion information and a second current pulse representing additional information, the first and second current pulses separated by a first pause interval, wherein the second current pulse is comprised of an 8-bit sequence having four bits followed by three bits and a parity bit, the three bits representing a numerical value of a field strength of the air slot between the active sensor and the encoder. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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Specification