Sensor assembly, device and method for determining vibrations of a measurement object, and measurement object having at least one such sensor assembly
First Claim
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1. A sensor assembly for determining vibrations of a measurement object, the sensor assembly comprising:
- an RFID transponder,an acceleration sensor unit connected to the RFID transponder, anda storage capacitor connected between the RFID transponder and the acceleration sensor unit, for capacitively storing electrical energy for a short, temporary period,a surge capacitor, isolated from the storage capacitor, connected between the RFID transponder and the acceleration sensor unit, for isolating the RFID transponder from the acceleration sensor unit,wherein sensor data of the acceleration sensor unit are to be transmitted via the RFID transponder, andwherein the acceleration sensor unit is supplied with electrical energy via the storage capacitor.
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Abstract
A sensor assembly for determining vibrations of a measurement object, which sensor assembly is or can be fastened to the measurement object in a bonded, form-closed, and/or force-closed manner, an RFID transponder and an acceleration sensor unit coupled to the RFID transponder, wherein sensor data of the acceleration sensor unit are to be sent by means of the RFID transponder. Also disclosed is a device for determining vibrations of a measurement object, to a measurement object having at least one sensor assembly, and to a method for determining vibrations of a measurement object.
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Citations
16 Claims
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1. A sensor assembly for determining vibrations of a measurement object, the sensor assembly comprising:
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an RFID transponder, an acceleration sensor unit connected to the RFID transponder, and a storage capacitor connected between the RFID transponder and the acceleration sensor unit, for capacitively storing electrical energy for a short, temporary period, a surge capacitor, isolated from the storage capacitor, connected between the RFID transponder and the acceleration sensor unit, for isolating the RFID transponder from the acceleration sensor unit, wherein sensor data of the acceleration sensor unit are to be transmitted via the RFID transponder, and wherein the acceleration sensor unit is supplied with electrical energy via the storage capacitor. - View Dependent Claims (2, 3, 4, 5, 8, 10, 11, 12, 13)
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6. A device for determining vibrations of a measurement object, comprising:
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at least one sensor assembly including; an RFID transponder, an acceleration sensor unit connected to the RFID transponder, and a storage capacitor connected between the RFID transponder and the acceleration sensor unit, for capacitively storing electrical energy for a short, temporary period, a surge capacitor, isolated from the storage capacitor, connected between the RFID transponder and the acceleration sensor unit, for isolating the RFID transponder from the acceleration sensor unit, wherein sensor data of the acceleration sensor unit are to be transmitted via the RFID transponder, and wherein the acceleration sensor unit is supplied with electrical energy via the storage capacitor; and at least one evaluation unit configured to read out sensor data of the sensor assembly when the evaluation unit is connected to an RFID reading device. - View Dependent Claims (7, 15, 16)
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9. A method for determining vibrations of a measurement object using a device having a sensor assembly including:
- an RFID transponder, an acceleration sensor unit connected to the RFID transponder, and a storage capacitor connected between the RFID transponder and the acceleration sensor unit, for capacitively storing electrical energy for a short, temporary period, a surge capacitor, isolated from the storage capacitor, connected between the RFID transponder and the acceleration sensor unit, for isolating the RFID transponder from the acceleration sensor unit, and an evaluation unit configured to read out sensor data of the sensor assembly when the evaluation unit is connected to an RFID reading device, the method comprising;
touchlessly reading out by means of an RFID reading device a sensor data of the sensor assembly attached to the measurement object; touchlessly communicating with an RFID transponder of the sensor assembly using an RFID reading device of the evaluation unit; supplying the RFID transponder by the RFID reading device with electrical energy; storing the electrical energy in the RFID transponder; interrupting the communication between the RFID reading device and the RFID transponder; carrying out a vibration determination by the sensor assembly; supplying the acceleration sensor unit of the sensor assembly with electrical energy via the RFID transponder; and re-establishing the communication between the RFID reading device and the RFID transponder following the vibration determination, in order to transmit the sensor data determined by the sensor assembly by means of the RFID transponder to the RFID reading device of the evaluation unit. - View Dependent Claims (14)
- an RFID transponder, an acceleration sensor unit connected to the RFID transponder, and a storage capacitor connected between the RFID transponder and the acceleration sensor unit, for capacitively storing electrical energy for a short, temporary period, a surge capacitor, isolated from the storage capacitor, connected between the RFID transponder and the acceleration sensor unit, for isolating the RFID transponder from the acceleration sensor unit, and an evaluation unit configured to read out sensor data of the sensor assembly when the evaluation unit is connected to an RFID reading device, the method comprising;
Specification