Unlock instant, AI-driven research and patent intelligence for your innovation.

Sensor device for contactless detection of rotational properties of rotatable objects

A sensor device, sensor technology, applied to devices using electric/magnetic methods, measuring devices, electric devices, etc.

Inactive Publication Date: 2016-08-24
ROBERT BOSCH GMBH
View PDF7 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Although the rotational speed detection device disclosed in the prior art has many advantages, there is still potential for further improvement

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Sensor device for contactless detection of rotational properties of rotatable objects
  • Sensor device for contactless detection of rotational properties of rotatable objects
  • Sensor device for contactless detection of rotational properties of rotatable objects

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0030] exist figure 1 shows a first embodiment of a sensor device 10 according to the invention for contactless detection of a rotatable object 12 ( figure 2 ) at least one rotation property. like figure 2 and image 3 As shown in , the rotatable object 12 is in the exemplary embodiment a compressor wheel 14 of a compressor 16 of an exhaust gas turbocharger 18 , which rotates, in particular rotates, about an axis of rotation 20 . For example, the sensor device 10 is designed as a rotational speed sensor which detects the rotational speed of the compressor impeller. In principle, however, other fields of use and applications are also possible.

[0031] The sensor device 10 includes a sensor housing 22 , which can be produced at least partially from plastic and has a sensor section 24 , which can be produced at least partially from stainless steel. In particular, the sensor section 24 is designed as a non-magnetic sleeve 25 . A total of: at least one magnetic field gener...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention proposes a sensor device (10) for contactless detection of the rotational speed of a rotatable object (12), in particular of a compressor wheel (14) of a turbocharger (18). The sensor device (10) includes a sensor housing (22). The sensor device (10) further comprises: at least one magnetic field generator (26) for generating a magnetic field at the position of the rotatable object (12); at least one magnetic field sensor (28) for detecting (12) The magnetic field generated by the eddy current. The sensor device (10) also has at least one connecting element (58, 60, 62), wherein the connecting element (41, 58, 60, 62) is provided to make the sensor device (10) connected to a device (40) comprising a rotatable object (12), in particular a turbocharger (18), such that said magnetic field generator (26) and said magnetic field sensor (28) are at least partly co-located in a sensor housing A sensor section (24) of a body (22), and said sensor housing (22) is spaced at least in sections from a device (40) including a rotatable object (12).

Description

Background technique [0001] Numerous sensors are known from the prior art which detect at least one rotational property of a rotatable, in particular rotatable, object. A rotation characteristic is to be understood here as a general characteristic which at least partially describes the rotation of the rotatable object. This can be, for example, angular velocity, rotational speed, angular acceleration, rotational angle, angular position or other properties which can characterize the continuous or discontinuous, uniform or non-uniform rotation or rotation of the rotatable object. [0002] Such sensors are disclosed, for example, in Konrad Reif (ed.): Sensors in Motor Vehicles (Sensorenim Kraftfahrzeug), first edition 2010, pp. 63-73. A particular focus of the invention, although in principle the invention is not restricted thereto, is the rotational speed detection, in particular of a charging device, especially in an exhaust gas turbocharger. The rotational speed detection ca...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): F01D17/06F02C6/12G01P3/488G01P3/49
CPCF01D17/06F02C6/12F05D2220/40G01P3/495G01P3/44G01D11/245G01B7/30G01P3/49
Inventor M·莱纳K·莱兴米勒
Owner ROBERT BOSCH GMBH