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An ultrasound sensor device for detecting and sending ultrasound

An ultrasonic sensor, ultrasonic technology, applied in the direction of sensors, sounding equipment, measuring devices, etc., to achieve the effect of improving resolution, avoiding surface ripples, and high sealing

Active Publication Date: 2013-01-23
ROBERT BOSCH GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Usually, ultrasonic parking devices only have a warning function for object detection in the acoustic space

Method used

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  • An ultrasound sensor device for detecting and sending ultrasound
  • An ultrasound sensor device for detecting and sending ultrasound
  • An ultrasound sensor device for detecting and sending ultrasound

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0075] figure 1 An ultrasound sensor device 1 for detecting and / or transmitting ultrasound 2 according to a first embodiment of the invention is shown. The ultrasonic sensor device 1 has a plurality of ultrasonic sensor elements, here two ultrasonic sensor elements 3a, 3b. Each ultrasonic sensor element 3 a , 3 b has a base body 4 with an opening 5 a , 5 b penetrating the base body 4 , which opening has a circular cross section. The base body 4 of the ultrasonic sensor elements 3 a , 3 b is designed in one piece and is identified below with the reference numeral 4 . Furthermore, each ultrasonic sensor element 3a, 3b has: a flexible bending element 6a, 6b, which is arranged in the opening 5a, 5b and is electrically conductive; a disc-shaped piezoelectric element 7a, 7b, which is arranged in the opening 5a, 5b In and connected with the flexible bending elements 6a, 6b; damping elements 8a, 8b, which are arranged in the openings 5a, 5b and cover the piezoelectric elements 7a, 7...

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PUM

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Abstract

The invention relates to an ultrasound sensor device for detecting and sending ultrasound. To improve the sensitivity of an ultrasound sensor device 1 used for detecting an object, the ultrasound sensor device 1 has a multiplicity of transmission sensor elements (3a-3f). Each ultrasound sensor element 3a, b comprises a basic body or substrate 4 with an opening 5a, b, a flexible bending element 6a, b, which closes a first end A of the opening 5a, b. The flexible bending element 6a, b may be a polymer, particularly a liquid crystal polymer, but metals or metal oxides are also proposed. The piezoelectric element 7a, b, is arranged in the opening 5a, b in contact with the flexible bending element 6a, b and a damping element 8a, b which is arranged in the opening 5a, b closes a second end B of the opening 5a, b.

Description

technical field [0001] The invention relates to an ultrasonic sensor element for detecting and / or transmitting ultrasound, an ultrasonic sensor device for detecting and / or transmitting ultrasound and a method for manufacturing an ultrasonic sensor device for detecting and / or transmitting ultrasound Methods. Background technique [0002] Ultrasonic parking devices are used to detect objects in the space in front and / or behind the vehicle by means of an ultrasonic field and for this purpose usually have 4 to 6 ultrasonic sensor devices which are respectively arranged on the rear bumper and / or in the front bumper. Each of the ultrasonic sensor devices here has an ultrasonic sensor element, which operates selectively in detection mode or transmission mode. The ultrasonic sensor devices are arranged relative to one another in the rear bumper and / or the front bumper in such a way that the ultrasonic sensor devices are aligned horizontally so that ground reflections of ultrasound...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01S7/521G10K9/122
CPCG01S15/93B06B1/06G01S7/521H04R17/00G01S2015/932B06B1/0629G01H11/08G10K11/004G10K9/122
Inventor G・格拉赫A・格拉赫
Owner ROBERT BOSCH GMBH
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