Sensor arrangement and method for creating an output signal
First Claim
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1. A sensor arrangement, comprising:
- a sensor for a mechanical quantity or a thermal quantity of a machine;
the sensor having an input and an output, the sensor configured and arranged to be attached to the machine;
a processing circuit having an input end and an output end, the input end of the processing circuit connected to the output of the sensor and providing an output signal through the output end, which is processed for a wireless transmission; and
a transmitter coupled to the processing circuit and including a modulator for modulating the output signal; and
a cable, which is coupled to the processing circuit and transmitter;
the cable having a lead configured and arranged to feed a power supply from an external power supply source to the processing circuit;
the processing circuit configured to supply the output signal or a signal derived from the output signal, which is processed for wireless transmission, to the lead of the cable for wired transmission through the cable; and
wherein the output signal is modulated by the modulator of the transmitter according to at least one modulation process from a group comprising amplitude modulation, frequency modulation, and phase modulation.
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Abstract
A sensor arrangement (10) includes a sensor (11) for a mechanical quantity or a thermal quantity, a processing circuit (12), which is connected at the input end to the sensor (11) and provides an output signal (SRF), which is processed for wireless transmission, and a cable (13), which is coupled to the processing circuit (12), to which the output signal (SRF) or a signal derived from the output signal (SRF) is supplied and which delivers a power supply to the processing circuit.
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Citations
12 Claims
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1. A sensor arrangement, comprising:
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a sensor for a mechanical quantity or a thermal quantity of a machine;
the sensor having an input and an output, the sensor configured and arranged to be attached to the machine;a processing circuit having an input end and an output end, the input end of the processing circuit connected to the output of the sensor and providing an output signal through the output end, which is processed for a wireless transmission; and a transmitter coupled to the processing circuit and including a modulator for modulating the output signal; and a cable, which is coupled to the processing circuit and transmitter; the cable having a lead configured and arranged to feed a power supply from an external power supply source to the processing circuit; the processing circuit configured to supply the output signal or a signal derived from the output signal, which is processed for wireless transmission, to the lead of the cable for wired transmission through the cable; and wherein the output signal is modulated by the modulator of the transmitter according to at least one modulation process from a group comprising amplitude modulation, frequency modulation, and phase modulation. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A method for producing an output signal for transmission via a cable, the method comprising the steps of:
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attaching a sensor to a machine; emitting a sensor signal by the sensor for mechanical or thermal quantities of the machine, producing an output signal from the sensor signal by means of a processing circuit, wherein the processing circuit processes the output signal for a wireless transmission, and emitting the output signal or a signal derived from the output signal to a lead of a cable, wherein the output signal has a carrier frequency modulated corresponding to the data of the processed sensor signal; transmitting the output signal, which is processed for wireless transmission, through the lead of the cable for wired transmission through the cable; and introducing a power supply from an external power supply source to the processing circuit via the lead of the cable.
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Specification