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Sensitive element, sensor and vibration monitoring device

A technology of sensitive components and installation parts, applied to measurement devices, vibration measurement in solids, measurement of vibration and other directions, can solve the problems of discount of core parameters of breeze vibration monitoring products, difficult installation process, and not enough attention, etc. Improve the displacement range and frequency range, reduce the difficulty of installation process, and reduce the effect of mechanical performance requirements

Pending Publication Date: 2021-01-12
合肥本构智能科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Unfortunately, in the prior art, the cantilever beam elastic body used in the sensitive element of the vibration sensor has not attracted enough attention, resulting in a discount on the core parameters of Breeze vibration monitoring products
[0008] Due to many key factors such as the amplitude range and frequency range of the vibration sensor, the vibration monitoring device is also difficult to install.

Method used

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  • Sensitive element, sensor and vibration monitoring device
  • Sensitive element, sensor and vibration monitoring device
  • Sensitive element, sensor and vibration monitoring device

Examples

Experimental program
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Effect test

Embodiment 1

[0049] Such as figure 1 with figure 2 As shown, the present invention provides a sensitive element, which can be used on devices such as vibration sensors. The sensitive element includes a mounting part 1, an elastic deformation part 3 and a contact part 5 connected in sequence, and the mounting part 1 is used for connecting with the monitoring device. Other external devices 10 are connected, and the external devices 10 are connected with the wires and other parts of the monitoring device, so as to fix the position of the sensitive element relative to the wires to be tested and other parts of the monitoring device. The elastic deformation part 3 is the core part of the sensitive element, and it is also the main deformation (strain) concentration area of ​​the sensitive element, and it is also the measurement area. No matter whether the strain gauge or the fiber grating is used as the conversion element, it is arranged in this area. The contact part 5 is in direct contact wit...

Embodiment 2

[0053] Such as Image 6 , Figure 7 with Figure 8 As shown, the present embodiment provides a sensitive element, which includes an upper pressing plate 101, a lower pressing plate 102, and a sheet elastic body 103; The point part 5 and the elastic deformation part 3 are located between the mounting part 1 and the contact part 5; the main part of the sheet elastic body 103 can be designed and manufactured using ready-made plates, and the thickness of some parts can be kept consistent, and the structure is simple And the processing process is relatively easy, especially when using high-strength and high-elastic materials for production, this processing performance advantage is more obvious. On the other hand, except that the main part of the sheet-shaped elastic body 103 is made of high-elasticity and high-strength materials, other components can be made of conventional materials, reducing material and processing costs. The elastic deformation part 3 of the sheet-shaped elas...

Embodiment 3

[0057] Such as figure 1 , image 3 , Figure 4 , Figure 5 with Image 6 As shown, this embodiment provides a sensitive element whose structure is basically the same as that of Embodiment 1 and Embodiment 2, the difference is that a first transition section 2 is provided between the installation part 1 and the elastic deformation part 3 ; A second transition section 4 is provided between the elastic deformation part 3 and the contact part 5, and the first transition section 2 and the second transition section 4 are smooth transition areas, respectively allowing the elastic deformation part 3 and the installation part 1 and The transition between the contact parts 5 is smooth, and the first transition section 2 and the second transition section 4 are generally provided with rounded corners, curved surfaces and other gradual changes to achieve a natural transition between different shapes and sections, eliminating stress concentration at the connection.

[0058] Such as Fi...

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Abstract

The invention discloses a sensitive element, a sensor and a vibration monitoring device, belongs to the technical field of vibration monitoring, and particularly relates to a sensitive element which comprises a mounting part, an elastic deformation part and a contact part which are connected in sequence. The elastic deformation part is located between the mounting part and the contact part; or thesensitive element comprises an upper pressing plate, a lower pressing plate and a sheet-shaped elastic body, and the sheet-shaped elastic body comprises a mounting part, an elastic deformation part and a contact part which are connected in sequence. Meanwhile, the invention further provides a sensor comprising the sensitive element and a vibration monitoring device. The elastic deformation part of the sensitive element of the vibration sensor adopts an equal-strength beam structure or an approximate equal-strength beam structure, the stress concentration of the elastic deformation part can bereduced, the measurement range and the frequency range are increased, the measurement precision is improved, and the service lives of the sensitive element, the vibration sensor and the vibration monitoring device can be prolonged.

Description

technical field [0001] The invention belongs to the technical field of vibration monitoring, and in particular relates to a sensitive element, a sensor and a vibration monitoring device. Background technique [0002] Under the action of wind, ice and other factors, overhead transmission lines have different characteristics of motion phenomena, that is, various types of vibrations are generated, and the main types include breeze vibration, galloping, and sub-gap vibration. Among them, wind vibration occurs most frequently, and long-term accumulation of vibration is extremely harmful to the line. It is an important content that must be considered in the design and operation monitoring of overhead transmission lines. Breeze vibration is high-frequency and low-amplitude vertical vibration generated by overhead transmission lines under the action of breeze. The frequency range is generally 5-120Hz, and the peak amplitude is generally less than 3 times the diameter of the overhead...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01H1/00
CPCG01H1/00
Inventor 张科李广龙张红亮高筱培
Owner 合肥本构智能科技有限公司
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