An integrated mobile object electric quantity detection sensor

Abstract

The application belongs to the technical field of testing, and discloses an integrated mobile object electric quantity detection sensor, which comprises a center probe, a hard interlayer, a filler or a primary circuit, a split shell and a lead wire, can detect the electric quantity of a charged object passing through the sensor, and the obtained response signal amplitude is positively correlated with the electric quantity. The center probe is made of a high-conductivity material and is connected with the lead wire; the center probe is wrapped with a high-resistivity hard interlayer; the hard interlayer is provided with a split shell, the lead wire is led out from the split shell, the lead wire is provided with a shielding shell and is connected with the split shell, the space part in the hard interlayer and the split shell is filled with the filler, and the primary circuit can also be placed in the space to convert and amplify the signal. The application realizes the detection of the electric quantity of a mobile object, and improves the reliability, temperature resistance and shielding property of the connection between the sensor and the cable.

Description

TECHNICAL FIELD

[0001] The electric quantity of the application belongs to the technical field of testing, and particularly relates to an integrated mobile object electric quantity detection sensor. BACKGROUND

[0002] During the movement of objects, especially tiny solid particles, in air or other fluids, the objects will carry a certain amount of electric quantity due to friction, high temperature, etc. By detecting the change of electric quantity in a space, it can be determined whether there are particles in the space, how many particles, the moving speed, and even the particle concentration. Since the state of particles can represent the working condition of a gas or mechanical system to some extent, electric quantity monitoring of the system can assist in determining the state of the system to some extent.

[0003] At present, in the field of object electric quantity detection, some scientific research institutes and colleges in China are engaged in related research and have achieved certain results, and some relatively mature products have also been produced. For example, the combination of an electrometer and a Faraday cylinder can accurately measure the electric quantity of an object falling into the Faraday cylinder, but the object needs to be enclosed in the cylinder, which destroys the original charged state of the object and has a limited measurement range. In addition, the installation is complex and is not suitable for larger pipelines or systems. In addition, other electric quantity detection sensors also have the problems of complex structure, heavy weight, easy cable loosening, poor stability, etc., which greatly affect the detection effect of the sensor and reduce the applicability of the sensor. SUMMARY

[0004] In view of the above problems, the application provides an integrated mobile object electric quantity detection sensor, which solves the problems of the prior art and provides support for electric quantity detection and state monitoring in various complex systems. The application can be extended to any field that needs to monitor the presence or absence of particles, the moving speed, etc. in a system.

[0005] To achieve the above purpose, the application adopts the following technical scheme.

[0006] An integrated mobile object electric quantity detection sensor, the sensor comprising: a center probe 1, a lead wire 3, a hard interlayer 4, a shell, a filler 7;

[0007] One end of the center probe 1 is connected to one end of the lead wire 3, the center probe 1 is wrapped with the hard interlayer 4, the hard interlayer 4 is provided with the shell, the lead wire 3 is led out of the shell and connected and fixed with the shell, and the space part in the hard interlayer 4 is filled with the filler or a primary circuit, the primary circuit is used for converting and amplifying the signal output by the center probe.

[0008] The features and further improvements of the technical scheme of the application are as follows.

[0009] (1) the shell cover comprises a split shell front end 5 and a split shell rear end 6;

[0010] The split shell front end 5 and the split shell rear end 6 are connected and fixed by welding or bonding after the sensor is assembled.

[0011] (2) An extension tube structure is added at the tail of the split shell rear end 6 to realize fixation with the lead wire 3.

[0012] (3) The lead wire 3 is composed of a lead wire shell, a lead wire filler and a lead wire inner core. The lead wire 3 is deeply fixed in the filler. The lead wire shell is made of high-temperature-resistant shielding material and is connected and fixed with the split shell rear end 6 by welding or bonding. The lead wire filler is made of high-resistivity insulating material. The lead wire 3 is bendable. The lead wire 3 can be directly connected with the connector 11 or connected with the ordinary cable 10 for extension.

[0013] (4) The hard interlayer 4 is made of high-resistivity insulating material. The shell cover is made of shielding material. The filler is made of high-resistivity insulating material.

[0014] (5) The center probe 1, the hard interlayer 4, the split shell front end 5 and the split shell rear end 6 should be tightly matched without gaps. The filler fills the entire cavity to fix the position of the lead wire 3 and prevent the lead wire 3 from contacting the shell cover. If a primary circuit is placed in the cavity, the primary circuit should be fixed.

[0015] (6) The sensor further comprises a fixing nut 2.

[0016] The center probe 1 is a structure of two coaxial cylinders with different diameters. The rear end surface of the center probe 1 is provided with a threaded column which cooperates with the fixing nut 2. The threaded column is provided with a radial fine hole. The inner core of the lead wire 3 is inserted into the fine hole and fixed through the fixing nut 2, so as to realize the connection of the center probe 1 and the lead wire 3.

[0017] (7) The hard interlayer 4 is a hollow cylindrical structure with a boss. The boss tightly cooperates with the center probe 1. The cavity part of the hard interlayer 4 is filled with the filler 7 to preliminarily fix the lead wire 3, so that the lead wire 3 does not contact the hard interlayer 4. The filler is a two-component insulating glue.

[0018] (8) The split shell rear end 6 is provided with a boss structure which is fixed on the measured pipeline wall 12 by welding.

[0019] The sensor is installed on the measured pipeline wall 12 to detect the solid particles flowing in the pipeline. The detection end surface of the sensor is a plane and is in the same plane as the inner side of the measured pipeline wall 12.

[0020] Compared with the prior art, the sensor has the following advantages:

[0021] This invention proposes an integrated mobile object power detection sensor that employs a non-contact detection method, thus not affecting the object's motion or physical state. The integrated design and filling scheme of the probe and cable avoid problems associated with traditional connection methods, such as cable loosening, connector interference, and poor temperature resistance, significantly increasing the sensor's vibration resistance and reliability. Furthermore, its small size, light weight, and simple structure facilitate installation on systems of varying structures and sizes. Fixing the primary circuitry within the cavity effectively improves the sensor's anti-interference characteristics, providing a novel solution for power detection and status monitoring in various complex systems. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the sensor structure described in this invention;

[0023] Figure 2 This is a schematic diagram of the overall appearance of the sensor described in this invention;

[0024] Figure 3 This is a schematic diagram of the sensor installation scheme described in this invention;

[0025] Wherein: 1-Center probe; 2-Fixing nut; 3-Lead wire; 4-Rigid interlayer; 5-Front end of split shell; 6-Rear end of split shell; 7-Fill material; 8-Weld; 9-Crimp terminal; 10-Ordinary cable; 11-Connector; 12-Tested pipe wall. Detailed Implementation

[0026] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. In the drawings, the shapes and proportions may be exaggerated for simplification and convenience. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0027] This invention provides an integrated mobile object power detection sensor, comprising a central probe, a rigid interlayer, filler or primary circuitry, a separate housing, and leads. The central probe is connected to the leads, and the central probe is encased in a rigid interlayer. The rigid interlayer is further encased in a separate housing, from which the leads extend. The space within the rigid interlayer is filled with filler, which can also house the primary circuitry.

[0028] The central probe proposed according to the present invention is made of a high conductivity material, the rigid interlayer is made of a high resistivity insulating material, the split shell is made of a shielding material, and the filler is made of a high resistivity insulating material.

[0029] The split housing proposed in this invention consists of two parts: a front end and a rear end. After the sensor is assembled, they are connected and fixed by welding or bonding. The shape of the split housing can be changed according to installation requirements, and an extension tube can be added to the rear end to protect the leads.

[0030] The lead wire proposed according to the present invention consists of a shell, a filler, and an inner core, with the lead wire inserted into the filler for initial fixation. The shell is made of high-temperature resistant shielding material and is connected and fixed to the separate shell by welding or bonding. The filler is made of high-resistivity insulating material. The lead wire is bendable and can be directly connected to a connector or extended by connecting to a regular cable.

[0031] According to the present invention, the center probe, rigid interlayer, and split shell should fit together tightly without any gaps. The filler should fill the entire cavity to fix the position of the lead wire and prevent it from contacting the split shell. If a primary circuit is placed in the cavity, the circuit should be fixed.

[0032] Example

[0033] This invention proposes an integrated mobile object charge detection sensor for detecting the charge level of charged objects passing through the sensor. For example... Figure 1 As shown, the sensor consists of a central probe 1, a fixing nut 2, a lead wire 3, a rigid interlayer 4, a split shell front end 5, a split shell rear end 6, and filler 7.

[0034] In this embodiment, such as Figure 1 , 2 As shown, the center probe 1 is machined into two coaxial cylindrical structures with different diameters. The smaller cylinder has a diameter of 5mm, and the larger cylinder has a diameter of 8mm. Both are made of nickel-based alloy conductor material, which is resistant to high temperatures and corrosion, making them suitable for complex and harsh detection environments and ensuring a long service life. The rear end face of the center probe 1 has a 3mm diameter threaded post that mates with the fixing nut 2. The threaded post has a radial fine hole, into which the inner core of the lead wire 3 is inserted and secured by the fixing nut 2, thus achieving a reliable connection between the center probe 1 and the lead wire 3.

[0035] The rigid interlayer 4 is machined into a hollow cylindrical structure with bosses, with a wall thickness of 1.5mm and a length of 20mm. It is made of high-temperature resistant insulating ceramic material, and the bosses can fit tightly with the center probe. After the rigid interlayer 4 is installed, the cavity is filled with filler 7, and the lead wires are initially fixed to ensure that the lead wires 3 do not contact the rigid interlayer 4. The filler is a two-component insulating adhesive. After the adhesive has cured, the separate shell is installed.

[0036] The split housing consists of two parts: a front end (5) and a rear end (6). Both parts have a wall thickness of 1.5mm and are made of easily machinable and economical stainless steel. The front end (5) features a boss structure that allows for a tight fit with the rigid interlayer (4). The rear end (6) is inserted from the other end of the lead wire (3) or before sensor assembly. It also provides a tight fit with the rigid interlayer (4). To protect the lead wire (3) and increase sensor reliability, the rear end (6) has an extended columnar structure with an inner diameter of 4mm and a length of 10mm. The front end (5) and rear end (6) are connected by welding, ensuring both a robust and reliable connection while maintaining effective shielding.

[0037] like Figure 3 As shown, the sensor is mounted on the wall 12 of the pipe being measured to detect solid particles flowing through the pipe. The sensor's detection end face is flat and flush with the inner side of the pipe wall 12, so it does not affect the movement of the medium or the particles themselves. For ease of installation, a boss structure is added to the rear end 6 of the split housing for positioning. The boss can be welded to the pipe wall 12. For large-scale systems, multiple sensors can be installed simultaneously for distributed detection.

[0038] This invention proposes an integrated mobile object power detection sensor that employs a non-contact detection method, thus not affecting the object's motion or physical state. The integrated design and filling scheme of the probe and cable avoid problems associated with traditional connection methods, such as cable loosening, connector interference, and poor temperature resistance, significantly increasing the sensor's vibration resistance and reliability. Furthermore, its small size, light weight, and simple structure facilitate installation on systems of varying structures and sizes. Fixing the primary circuitry within the cavity effectively improves the sensor's anti-interference characteristics, providing a novel solution for power detection and status monitoring in various complex systems.

[0039] Specific examples have been used in the embodiments of this invention to illustrate the principles and implementation methods of the invention. The descriptions of the above embodiments are only for the purpose of helping to understand the method and core ideas of this invention. At the same time, those skilled in the art will recognize that, based on the ideas of this invention, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be construed as a limitation of this invention.

Claims

1. An integrated mobile object power detection sensor, characterized in that, The sensor includes: a central probe (1), a lead wire (3), a rigid interlayer (4), a housing, and a filler (7). One end of the central probe (1) is connected to one end of the lead wire (3). The central probe (1) is wrapped with a rigid interlayer (4). The rigid interlayer (4) is fitted with a shell. The lead wire (3) is led out from the shell and connected and fixed to the shell. The cavity of the rigid interlayer (4) is filled with filler. The housing includes a split housing front end (5) and a split housing rear end (6); after the sensor is assembled, the split housing front end (5) and the split housing rear end (6) are connected and fixed by welding or bonding; an extension tube structure a is added to the tail of the split housing rear end (6) to fix it to the lead wire (3); The central probe (1), rigid interlayer (4), front end (5) of the split shell and rear end (6) of the split shell should fit tightly without gaps. The filler should fill the entire cavity to fix the position of the lead wire (3) and prevent it from contacting the shell. If a primary circuit is placed in the cavity, the primary circuit should be fixed. The primary circuit is used to convert and amplify the signal output by the central probe. The rigid interlayer (4) is a hollow cylindrical structure with a boss c. The boss and the center probe (1) fit tightly together. The cavity of the rigid interlayer (4) is filled with filler (7) to preliminarily fix the lead wire (3) so that the lead wire (3) does not contact the rigid interlayer (4). The filler is a two-component insulating adhesive. The rear end (6) of the split shell is provided with a boss structure d, which is fixed to the wall (12) of the pipe to be tested by welding.

2. The integrated mobile object power detection sensor according to claim 1, characterized in that, The lead wire (3) consists of a lead wire shell, a lead wire filler, and a lead wire core. The lead wire (3) is initially fixed by inserting into the filler. The lead wire shell is made of high temperature resistant shielding material and is connected and fixed to the rear end (6) of the split shell by welding or bonding. The lead wire filler is made of high resistivity insulating material. The lead wire (3) can be bent. The lead wire (3) can be directly connected to the connector (11) or connected to an ordinary cable (10) for extension.

3. The integrated mobile object power detection sensor according to claim 1, characterized in that, The rigid interlayer (4) is made of high resistivity insulating material, the shell is made of shielding material, and the filler is made of high resistivity insulating material.

4. The integrated mobile object power detection sensor according to claim 1, characterized in that, The sensor also includes a fixing nut (2); The central probe (1) consists of two coaxial cylindrical structures with different diameters. The rear end face of the central probe (1) has a threaded post b, which cooperates with the fixing nut (2). The threaded post has a radial fine hole. The inner core of the lead wire (3) is inserted into the fine hole and fixed by the fixing nut (2), thereby realizing the connection between the central probe (1) and the lead wire (3).

5. The integrated mobile object power detection sensor according to claim 1, characterized in that, The sensor is installed on the wall (12) of the pipe being tested to detect solid particles flowing through the pipe. The sensor's detection end face is a plane and is on the same plane as the inner side of the wall (12) of the pipe being tested.

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