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Device for sending and/or receiving acoustic signals in the main direction

An acoustic signal, main direction technology, used in the measurement of ultrasonic/sonic/infrasonic waves, sound-generating equipment, re-radiation of sound waves, etc., can solve problems such as inability to obtain reflection characteristics

Active Publication Date: 2021-06-01
ROBERT BOSCH GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, it is not possible to derive the reflective properties from this
[0005] Problems often arise when measuring the environment with the aid of ultrasonic sensors, especially at close range

Method used

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  • Device for sending and/or receiving acoustic signals in the main direction
  • Device for sending and/or receiving acoustic signals in the main direction
  • Device for sending and/or receiving acoustic signals in the main direction

Examples

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Embodiment Construction

[0027] figure 1 A device 1 for transmitting and / or receiving acoustic signals in a main direction 2 is shown. Device 1 is an ultrasonic sensor. Device 1 is in figure 1 Shown in cross section. In this first embodiment, the housing 17 of the device 1 has the shape of a tank, which is figure 1 Shown in cross section. The housing has a bottom 15 and side walls, which in this first embodiment form the membrane carrier 14 . A diaphragm 9 is arranged on the opening of the housing opposite the bottom 15 of the housing, which covers (überspannen) the figure 1 above the opening of the tank or housing 17 . For this purpose, the membrane 9 is welded on its outer circumference to the membrane carrier 14 . The electroacoustic transducer 3 is arranged in the center of the diaphragm 9 . The electroacoustic transducer 3 is arranged on the side of the diaphragm 9 that is opposite to or facing away from the main direction 2 . The electroacoustic transducer 3 has, for example, a disk sha...

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PUM

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Abstract

The invention relates to a device (1) for transmitting and / or receiving acoustic signals in a main direction (2), in particular for detecting the surroundings of a vehicle, the device comprising Electroacoustic transducer (3) and deflection element (4). The electroacoustic transducer (3) is arranged to transmit acoustic signals in said main direction (2) and in the reverse direction (5) in the case of transmitting acoustic signals and / or in the case of receiving acoustic signals by Acoustic signal excitation from said main direction (2) and from said reverse direction (5). The deflection element (4) is provided for deflecting the output acoustic signal in the reverse direction (5) via the first acoustic path (6) into the main direction ( 2) such that the acoustic signal passes laterally through the electro-acoustic transducer (3), and / or in the case of receiving acoustic signals, the signal arriving from the main direction (2) passes laterally through the electro-acoustic transducer (3). The acoustic signal of the acoustic transducer (3) is deflected via the first acoustic path (6) in such a way that it reaches the electroacoustic transducer (3) from the reverse direction (5).

Description

technical field [0001] The present invention relates to a device for A device for transmitting acoustic signals and / or receiving acoustic signals from a main direction, in particular for detecting the surroundings of a vehicle. Background technique [0002] The current structure of ultrasonic sensors is complex. In such an ultrasonic sensor, at least two wires are in each case electrically contacted on the one hand at the contacts of the contact carrier and on the other hand at corresponding contacts of piezoceramic disks (so-called electroacoustic transducers) electrical contact. Here, the lines are welded to the electroacoustic transducer, preferably by means of a thermocompression welding process. The electroacoustic transducer is bonded to a can-shaped The bottom of the structure is tapered to the diaphragm. For switching on, the connection carrier is placed in the housing of the ultrasonic sensor. A printed circuit board of the control electronics and, in struct...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01S15/931G01S7/521G10K11/22G10K9/12H04R1/32
CPCG01H3/00G01H11/08G01S15/931G01S7/521G10K9/121G10K11/22
Inventor M·卡尔
Owner ROBERT BOSCH GMBH