SENSOR ASSEMBLY, DEVICE AND METHOD FOR DETERMINING VIBRATIONS OF A MEASUREMENT OBJECT, AND MEASUREMENT OBJECT HAVING AT LEAST ONE SUCH SENSOR ASSEMBLY

• US 20150254484A1
• Filed: 02/22/2013
• Published: 09/10/2015
• Est. Priority Date: 02/23/2012
• Status: Active Grant

• Current Assignee: Micro-Sensys GmbH
• Original Assignee: Micro-Sensys GmbH
• Inventors: Peitsch, Peter, Jurisch, Reinhard
• Granted Patent: US 9,589,163 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: G01H 1/003 of rotating machines G01H1/10 takes precedence
• CPC Class Codes: G01H 1/12 of longitudinal or not specified vibrations
• CPC Class Codes: G06K 7/10158 methods and means used by the interrogation device for reliably powering the wireless record carriers using an electromagnetic interrogation field
• CPC Class Codes: G06K 7/10415 the interrogation device being fixed in its position, such as an access control device for reading wireless access cards, or a wireless ATM banking machines in general G07F19/00
• CPC Class Codes: H02J 50/001 Energy harvesting or scavenging
• CPC Class Codes: H02J 50/10 using inductive coupling
• CPC Class Codes: H02J 50/20 using microwaves or radio frequency waves
• CPC Class Codes: H02J 50/27 characterised by the type of receiving antennas, e.g. rectennas
• CPC Class Codes: H02K 11/20 for measuring, monitoring, testing, protecting or switching rectifiers H02K11/04; power electronics H02K11/33

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.

Claims

1. A sensor assembly for determining vibrations of a measurement object which is or can be attached in a firmly bonded, form-fitted and/or force-fitted manner to the measurement object, comprising an RFID transponder and an acceleration sensor unit coupled with the latter, wherein sensor data of the acceleration unit are to be transmitted via the RFID transponder.

2. The sensor assembly as claimed in claim 1, wherein the acceleration sensor unit can be supplied with electrical energy via the RFID transponder.

3. The sensor assembly as claimed in claim 1, wherein the RFID transponder is designed as a passive RFID transponder.

4. The sensor assembly as claimed in claim 1, wherein the acceleration sensor unit is designed in such a way that accelerations in one dimension or in a plurality of dimensions of the spatial coordinate system can be measured with it.

5. The sensor assembly as claimed in claim 1, comprising a shield in relation to the measurement object made from a magnetically permeable material.

6. A device for determining vibrations of a measurement object, comprising at least one sensor assembly according to claim 1 and at least one evaluation unit for controlling and/or regulating the sensor assembly and/or for reading out sensor data of the sensor assembly, wherein the evaluation unit is coupled with an RFID reading device or wherein the RFID reading device is integrated into the evaluation unit.

7. The device as claimed in claim 6, wherein the evaluation unit has at least one input unit, at least one output unit and/or at least one processing unit to process and evaluate received sensor data of the sensor assembly.

8. A measurement object having at least one sensor assembly as claimed in claim 1, wherein the sensor assembly is attached in a firmly bonded, form-fitted and/or force-fitted manner to the measurement object.

9. A method for determining vibrations of a measurement object using a device as claimed in claim 6, wherein sensor data of a sensor assembly attached in a firmly bonded, form-fitted and/or force-fitted manner to a measurement object are read out touchlessly by means of an RFID reading device.

10. The method as claimed in claim 9, wherein contact is established touchlessly with an RFID transponder of the sensor assembly by means of an RFID reading device of an evaluation unit, wherein the RFID transponder is supplied by the RFID reading device with electrical energy which is stored in the RFID transponder, the contact between the RFID reading device and the RFID transponder is then interrupted and a vibration determination is carried out by means of the sensor assembly, wherein an acceleration sensor unit of the sensor assembly is supplied with electrical energy via the RFID transponder and, following the vibration determination, the contact between the RFID reading device and the RFID transponder is re-established 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.