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a sensor

A sensor and pressure sensing technology, applied in the field of sensors, can solve problems such as noise and other environmental factors that cannot be effectively eliminated, and achieve the effect of reducing the signal

Active Publication Date: 2020-06-09
SHANDONG GETTOP ACOUSTIC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In traditional radio devices (such as microphone devices), when the sound and pressure sensors are used in noisy environments, the influence of environmental factors such as noise cannot be effectively ruled out

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0053] figure 1 A schematic structural diagram of the sensor provided in Example 1.

[0054] figure 2 A schematic diagram of the working principle of the sensor provided in Embodiment 1.

[0055] see figure 1 with figure 2 , the pressure sensing component 30 is set separately from the pressure generating unit 20, the pressure generating unit 20 is preferably a flexible structure 21, one end of which is extended and connected to the inner wall of the housing 10, and the other end is a cantilever end, the pressure generating unit 20 is a cantilever The conduction strut 40 is connected between the outer cover 13 of the casing 10 and the pressure generating unit 20 .

[0056] The double arrow line in the figure indicates that the flexible structure 21 can vibrate up and down, and the dotted line indicates the range of the flexible structure 21 vibrating up and down.

[0057] see figure 2 , in this embodiment, when the external signal to be measured, such as external vibra...

Embodiment 2

[0059] image 3 Schematic diagram of the structure of the sensor provided in Example 2.

[0060] see image 3 As shown, the difference between Embodiment 2 and Embodiment 1 is that both ends of the pressure generating unit 20 such as the flexible structure 21 are extended and connected to the inner wall of the housing 10. In this embodiment, the external signal to be measured passes through the housing 10 and the conduction strut 40 are transmitted to the pressure generating unit 20, the pressure generating unit 20 thus produces reciprocating motion, causing the surrounding medium of the pressure generating unit 20 such as air disturbance, the disturbance concentrator 60 concentrates the change of the air disturbance around the pressure sensing component 30, and then The pressure change is received by the pressure sensing component 30 .

Embodiment 3

[0062] Figure 4 Schematic diagram of the structure of the sensor provided in Example 3.

[0063] Figure 5 for Figure 4 Schematic diagram of the structure of the pressure generating unit of the sensor shown.

[0064] see Figure 4 with Figure 5 The difference between the third embodiment and the second embodiment is that the structure of the pressure generating unit 20 is different. The pressure generating unit 20 includes a mounting portion 22 disposed in the accommodating cavity 11, two fixing portions 23 both connected to the inner side wall of the housing 10, and at least two elastically connected to the two fixing portions 23 and the The elastic connection part 24 between the installation parts 22 , the disturbance concentrator 60 is disposed on the installation part 22 , and the conductive strut 40 abuts on the installation part 22 .

[0065] The pressure sensing assembly 30 of the first to third embodiments described above is provided separately from the pressu...

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Abstract

The invention discloses a sensor, which comprises a housing with an accommodation chamber, a pressure generating unit which is arranged in the accommodation chamber and can cause pressure changes in the medium in the accommodation chamber due to its movement, and a pressure sensor for sensing pressure changes. The component and the conduction pillar arranged in the accommodating cavity are used to transmit the external signal to be measured to the pressure generating unit. In the sensor of the present invention, the external signal to be measured is transmitted to the pressure generating unit through the conductive pillar, the pressure generating unit generates movement to cause air disturbance, and then the pressure sensing component receives the pressure change of the air disturbance and performs signal sensing. Compared with the traditional sound sensor, the sensor of the present invention mainly relies on the conduction pillar to transmit the signal to be measured, which can avoid the influence of foreign objects, noise and other environmental factors on the sensor, and effectively reduce the signal generated by non-test objects.

Description

technical field [0001] The invention relates to a sensor. Background technique [0002] In a traditional sound receiving device (such as a microphone device), when the sound and pressure sensors are used to collect sound in a noisy environment, the influence of environmental factors such as noise cannot be effectively eliminated. Contents of the invention [0003] In order to overcome the deficiencies of the prior art, the purpose of the present invention is to provide a sensor, which can effectively reduce the impact of noise and other environmental factors on the sensor. [0004] The present invention adopts following technical scheme to realize: [0005] The present invention provides a sensor, comprising a housing with a containing cavity, a pressure generating unit disposed in the containing cavity and capable of causing a pressure change in the medium in the containing cavity due to its movement, and used for sensing the pressure A variable pressure sensing compone...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01D5/12G01D11/24G01L9/00G01L19/14H04R19/04
CPCG01D5/12G01D11/245G01L9/0041G01L19/14H04R19/04H04R2201/003G01L19/0609G01L19/0038H04R2410/07H04R1/04
Inventor 谢冠宏邱士嘉罗松成游博丞詹竣凯方维伦
Owner SHANDONG GETTOP ACOUSTIC
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