Sensor device for a test stand and test stands, prefereably for engines

• US 8,428,912 B2
• Filed: 03/01/2007
• Issued: 04/23/2013
• Est. Priority Date: 03/02/2006
• Status: Active Grant

• Current Assignee: AVL List GmbH (List Privatstiftung)
• Original Assignee: AVL List GmbH (List Privatstiftung)
• Inventors: Neuwirth, Werner
• Primary Examiner(s): COSIMANO, EDWARD R
• Application Number:
  US12/224,610
• Publication Number:
  US 20120065938A1
• Time in Patent Office: 2,245 Days
• Field of Search: 731/140.1, 731/160.1, 731/160.2, 734/321, 738/658, 738/659, 340/500, 340/540, 340/679, 340/870.01, 340/870.07, 340/870.16, 340/870.28, 340/870.29, 340/870.3, 340/870.31, 340/870.37, 702/1, 702/33, 702/108, 702/113, 702/127, 702/182, 702/187, 702/188
• US Class Current: 702/187
• CPC Class Codes: G01M 15/02 Details or accessories of testing apparatus

Abstract

A test stand sensor apparatus includes a sensor for acquiring data from the item under test and/or the environment, a power supply unit for converting electromagnetic radiation into electrical energy, and a unit for the wire-free transmission of sensor data and of a code which is characteristic of the sensor.

Claims

1. A test stand, comprising

at least one test cell with at least one sensor apparatus for acquiring data from an item under test and/or the environment, a sensor apparatus comprising a sensor system, a power supply unit for converting electromagnetic radiation into electrical energy, and a unit for wire-free transmission of charge state messages, sensor data and code which is characteristic of the sensor apparatus,

at least one evaluation and/or memory unit for the data, and

devices for substantially continuously generating electromagnetic fields for supplying the at least one sensor apparatus , said devices including control circuits operating in dependence on the charge state messages of the at least one sensor apparatus for adjusting the electromagnetic fields.

2. The test stand as claimed in claim 1, wherein the devices for substantially continuously generating electromagnetic fields comprise lighting devices and the power supply unit of the sensor apparatus comprises photovoltaic cells.

3. The test stand as claimed in claim 1, including a transmission unit for control signals for the sensor apparatus, integrated in the evaluation and/or memory unit or connected to it.

4. The test stand as claimed in claim 1, wherein an interrogation routine which monitors the sensor apparatus and registers or signals an inadequate charge state and/or failure is implemented in the evaluation and memory unit.

5. The test stand as claimed in claim 1, including a plurality of sensor apparatuses, and wherein a routine which identifies and assigns the sensor apparatuses to specific measurement channels is implemented in the evaluation and memory unit.

6. The test stand as claimed in claim 1, including a transmission unit for control signals for the sensor apparatus and an evaluation unit in a preparation area, with an interrogation routine which monitors the sensor apparatus and registers or signals an inadequate charge state and/or failure being implemented.

7. The test stand as claimed in claim 6, including a plurality of sensor apparatuses, and wherein a routine which identifies and assigns the sensor apparatuses to specific measurement channels of the evaluation and memory unit of the test stand is implemented in the transmission unit or the evaluation unit in the preparation area.