CN113029209A - Monopole capacitive sensor and connector device - Google Patents
Monopole capacitive sensor and connector device Download PDFInfo
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- CN113029209A CN113029209A CN202110355429.2A CN202110355429A CN113029209A CN 113029209 A CN113029209 A CN 113029209A CN 202110355429 A CN202110355429 A CN 202110355429A CN 113029209 A CN113029209 A CN 113029209A
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- 230000005404 monopole Effects 0.000 title claims description 5
- 238000005259 measurement Methods 0.000 claims description 20
- 238000009413 insulation Methods 0.000 claims description 5
- 230000007246 mechanism Effects 0.000 description 9
- 230000008901 benefit Effects 0.000 description 7
- 238000006073 displacement reaction Methods 0.000 description 4
- 239000000523 sample Substances 0.000 description 4
- 239000000853 adhesive Substances 0.000 description 3
- 230000001070 adhesive effect Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000005476 soldering Methods 0.000 description 3
- 239000012212 insulator Substances 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
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- 238000007711 solidification Methods 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
- G01D5/12—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means
- G01D5/14—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage
- G01D5/24—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage by varying capacitance
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Abstract
The invention belongs to the field of non-contact measuring devices, and provides a single-pole capacitive sensor and a connector device. The single-pole capacitive sensor comprises a measuring pole, an equipotential ring, a shielding ring and an insulating ring; the measuring electrode, the equipotential ring and the shielding ring are of stepped structures, and the measuring electrode, the equipotential ring and the shielding ring are coaxial and are assembled from inside to outside in sequence; annular grooves are formed in the same horizontal height and opposite positions of the measuring electrode, the equipotential ring and the shielding ring, and an insulating ring which is fixed in the radial direction is arranged between any two opposite annular grooves. The connector device adopts a shell layer and shell layer wire seat, an equipotential layer and equipotential layer wire seat and a measuring layer to realize good conduction between three conductive layers of a cable and a single-pole capacitive sensor.
Description
Technical Field
The invention belongs to the field of non-contact measuring devices, and particularly relates to a single-pole capacitive sensor and a connector device.
Background
The statements in this section merely provide background information related to the present disclosure and may not necessarily constitute prior art.
With the rapid development of modern industrial technology, a plurality of high-end precision devices and manufacturing and processing technologies put higher requirements on precision detection technology. The high-precision measurement of the changes of micro displacement, vibration and micro angle is more and more important in the field of modern precision instruments. The capacitance displacement sensor has the advantages of good dynamic characteristic, high resolution, high precision, good stability and the like, and is very suitable for high-precision non-contact dynamic measurement. Therefore, the method is widely applied to various industrial fields such as measurement of micro displacement, vibration, dimension and the like. The capacitive sensor comprises a unipolar plate capacitive sensor and a bipolar plate capacitive sensor.
The unipolar probe can realize non-contact and does not process the measured polar plate, and the measured polar plate does not need to be connected with a sensor circuit, so that the unipolar probe has a wide application range. However, the inventors have found that the measurement accuracy of the unipolar capacitive sensor is directly related to the assembly accuracy of the three-coaxial ring structure coaxiality, and the mode in which the unipolar capacitive sensor probe is directly connected to the three-coaxial cable is not detachable, which causes great inconvenience in assembly, use, adjustment, and maintenance, and the direct assembly accuracy is not easily ensured.
Disclosure of Invention
In order to solve the technical problems of the background art, a first aspect of the present invention provides a unipolar capacitive sensor in which a measuring pole, an equipotential ring, and a shield ring are directly radially fixed by an insulating ring to achieve more reliable assembly.
In order to achieve the purpose, the invention adopts the following technical scheme:
a single-pole capacitive sensor comprises a measuring pole, an equipotential ring, a shielding ring and an insulating ring; the measuring electrode, the equipotential ring and the shielding ring are of stepped structures, and the measuring electrode, the equipotential ring and the shielding ring are coaxial and are assembled from inside to outside in sequence; annular grooves are formed in the same horizontal height and opposite positions of the measuring electrode, the equipotential ring and the shielding ring, and an insulating ring which is fixed in the radial direction is arranged between any two opposite annular grooves.
As an implementation mode, the inner side of the upper part of the shielding ring is further provided with a first clamping groove for clamping with external equipment.
Above-mentioned technical scheme's advantage lies in, utilizes first joint groove to come the joint external equipment, improves the connection stability between the equipment.
As an embodiment, the measuring electrode has an axial stepped structure.
In one embodiment, an annular groove is formed on the outer side of the shaft of the measuring pole.
Above-mentioned technical scheme's advantage lies in, utilizes the annular groove in the axle outside and equipotential ring and shield ring relevant position's annular groove to pass through insulating ring fixed connection, has improved unipolar capacitive sensor's radial stability.
In order to solve the above problems, a second aspect of the present invention provides a connector device, which is connected to the single-pole capacitive sensor in a plug-in manner.
As an embodiment, the joint device comprises an outer shell layer, an outer shell layer wire seat, an equipotential layer wire seat and a measuring layer; the outer shell layer, the equipotential layer and the measuring layer are assembled from outside to inside in sequence; the outer shell layer wire seat, the equipotential layer wire seat and the measuring layer are respectively and correspondingly connected with the outermost layer, the middle layer and the conducting layer of the three-coaxial cable; the shell layer wire seat is arranged at one end of the shell layer, and the other end of the shell layer extends into the shielding ring of the single-pole capacitive sensor and is connected in a plug-in mode; the equipotential layer wire seats are arranged at two ends of the equipotential layer, and the measuring layer is connected with the measuring electrode of the single-pole capacitive sensor.
The advantage of above-mentioned technical scheme lies in, adopts outer shell and outer shell line seat, equipotential layer and equipotential layer line seat, measuring layer, realizes the good conduction of the three-layer conducting layer and the unipolar capacitance sensor of cable.
As an implementation manner, one end of the outer shell layer is provided with a first annular protrusion matched with the first clamping groove.
Above-mentioned technical scheme's advantage lies in, adopts annular protrusion and draw-in groove assembly, can realize reliable practical detachable plug mechanism, can realize piecing devices and monopole capacitive sensor's good detachability again.
As an implementation mode, one end of the outer shell layer provided with the annular bulge is provided with a plurality of longitudinal slits.
Above-mentioned technical scheme's advantage lies in, adopts the structure that cyclic annular arch set up the gap, guarantees good plug practicality.
As an implementation mode, a second clamping groove is formed in the inner side of the outer shell layer, a second annular protrusion is arranged on the outer side of the outer shell layer wire seat, and the second annular protrusion is clamped in the second clamping groove.
In one embodiment, a third clamping groove is formed in the inner side of the equipotential layer, a third annular protrusion is arranged on the outer side of the equipotential layer wire seat, and the third annular protrusion is clamped in the third clamping groove.
As an implementation mode, one end of the measuring layer connected with the measuring electrode is further provided with a plurality of longitudinal slits.
In one embodiment, an insulating sleeve is arranged between the equipotential layer and the measuring layer and between the equipotential layer and the outer shell layer to realize the functions of insulation and fixation.
The invention has the beneficial effects that:
(1) the invention provides a practical pluggable single-pole capacitance sensor, wherein a measuring electrode, an equipotential ring and a shielding ring are coaxially and sequentially assembled from inside to outside, annular grooves are formed in the positions, opposite to each other, of the measuring electrode, the equipotential ring and the shielding ring at the same horizontal height, and a radially fixed insulating ring is arranged between any two opposite annular grooves and adopts the axial limiting of the insulating ring, so that the problems that a probe of the single-pole capacitance sensor is not detachable and brings great inconvenience to assembly, use, adjustment and maintenance are solved, and the detachability and the structural stability of the single-pole capacitance sensor are improved.
(2) The annular clamping groove is adopted, so that good axial limiting of the sensor can be realized by means of solidification of the insulating filling glue.
(3) The detachable plug-pull mechanism is assembled by the annular bulge and the clamping groove and cut into a gap, and is reliable and practical. A good detachability of the joint means to the monopole sensor is achieved.
(4) According to the invention, the outer shell layer and the outer shell layer wire seat, the equipotential layer and the equipotential layer wire seat and the measuring layer are adopted, so that the three conductive layers of the cable are well conducted with the single-pole capacitive sensor.
(5) The insulating sleeve with the step mechanism provided by the invention realizes the insulation and fixation of a three-layer circuit of the connector device.
Advantages of additional aspects of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate exemplary embodiments of the invention and together with the description serve to explain the invention and not to limit the invention.
FIG. 1 is a front view of a unipolar capacitive sensor of an embodiment of the present invention;
FIG. 2 is a cross-sectional view of a unipolar capacitive sensor of an embodiment of the present invention;
FIG. 3 is a schematic view of a measurement pole of an embodiment of the present invention;
FIG. 4 is a schematic view of an equipotential ring according to an embodiment of the present invention;
FIG. 5 is a schematic view of a shield ring of an embodiment of the present invention;
FIG. 6 is a schematic view of an insulating ring of an embodiment of the present invention;
FIG. 7 is a schematic perspective view of an allelic layer according to an embodiment of the invention;
FIG. 8 is a perspective view of an equipotential layer wire seat according to an embodiment of the present invention;
FIG. 9 is a cross-sectional view of an equipotential layer of an embodiment of the present invention;
FIG. 10 is a cross-sectional view of an allelic layer nest according to an embodiment of the present invention;
FIG. 11 is a schematic perspective view of an outer shell layer of an embodiment of the present invention;
FIG. 12 is a perspective view of an outer shell wire mount of an embodiment of the present invention;
FIG. 13 is a cross-sectional view of an outer shell layer of an embodiment of the present invention;
FIG. 14 is a cross-sectional view of an outer shell wire seat of an embodiment of the present invention;
FIG. 15 is a schematic view of a measurement layer of an embodiment of the present invention;
FIG. 16 is a cross-sectional view of a measurement layer of an embodiment of the present invention;
FIG. 17 is a schematic view of an insulating sleeve between a measurement layer and an equipotential layer according to an embodiment of the present invention;
FIG. 18 is a schematic view of an insulating sleeve between an equipotential layer and an outer shell layer of an embodiment of the present invention;
FIG. 19 is a side view of a splice device according to embodiments of the present invention;
FIG. 20 is a cross-sectional view of a splice device according to embodiments of the present invention;
FIG. 21 is an assembly view of a tab of an embodiment of the present invention integrated with a unipolar capacitive sensor;
fig. 22 is an assembled cross-sectional view of a tab of an embodiment of the present invention integrated with a unipolar capacitive sensor.
Wherein: 1-a measuring pole; 101-measuring the minor axis; 102-a first annular groove; 2-an equipotential ring; 201-small end of equipotential ring; 202-a second annular groove; 3-a shield ring; 301-a first snap groove; 302-a third annular groove; 4-an insulating ring; 5-allelic layer; 501-a first gap; 502-stepped hole; 503-a third snap groove; 6-equipotential layer wire seats; 601-a third annular projection; 602-a second gap; 603-inside allelic layer; 7-an outer shell layer; 701-a first annular projection; 702-a third gap; 703-a second card slot; 704-a stepped bore; 8-outer shell wire seat; 801-second annular projection; 802-fourth slot; 803-inside of the outer skin wire seating; 9-measuring the layer; 901-a fifth gap; 902-holes on the sensor side; 903 — a hole on the cable side; 10-a first insulating sleeve; 1001-stepped shaft; 11-a second insulating sleeve; 1101-stepped axis.
Detailed Description
The invention is further described with reference to the following figures and examples.
It is to be understood that the following detailed description is exemplary and is intended to provide further explanation of the invention as claimed. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the invention. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.
In the present invention, terms such as "upper", "lower", "left", "right", "front", "rear", "vertical", "horizontal", "side", "bottom", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only terms of relationships determined for convenience of describing structural relationships of the parts or elements of the present invention, and are not intended to refer to any parts or elements of the present invention, and are not to be construed as limiting the present invention.
In the present invention, terms such as "fixedly connected", "connected", and the like are to be understood in a broad sense, and mean either a fixed connection or an integrally connected or detachable connection; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be determined according to specific situations by persons skilled in the relevant scientific or technical field, and are not to be construed as limiting the present invention.
The invention provides a single-pole capacitive sensor, aiming at solving the problem that when the single-pole capacitive sensor is directly assembled, the coaxiality precision is not easy to guarantee during assembly.
Referring to fig. 1 and 2, the present embodiment provides a unipolar capacitive sensor including a measuring pole 1, an equipotential ring 2, a shield ring 3, and an insulating ring 4.
In specific implementation, the measuring electrode 1, the equipotential ring 2 and the shielding ring 3 are all in a stepped structure, and the measuring electrode 1, the equipotential ring 2 and the shielding ring 3 are coaxial and are sequentially assembled from inside to outside; annular grooves are formed in the positions, opposite to each other, of the equipotential ring 1, the equipotential ring 2 and the shielding ring 3 at the same horizontal height, and an insulating ring 4 fixed in the radial direction is arranged between any two opposite annular grooves.
The measuring pole as shown in fig. 2 and 3 is of a shaft-like stepped structure consisting of two shafts. The measuring pole formed by the axial stepped structure of the two shafts is simple in structure and easy to realize. Wherein the two axes are a measurement maximum axis and a measurement minimum axis 101, respectively.
In fig. 3, a first annular groove 102 is formed on the outer side surface of the measurement maximum shaft. The measuring small shaft 101 and the equipotential ring 2 are fixedly limited through an insulating ring 4 at a step.
In fig. 4, the equipotential ring 2 is a stepped housing structure that includes an equipotential ring small end 201 and an equipotential ring large end. The big end medial surface of equipotential ring all opens the annular notch 202 of second with the lateral surface, and the medial surface passes through insulator ring 4 and measures utmost point 1 fixed, and the lateral surface passes through another insulator ring 4 radial fixation with shield ring 3. The structure of the insulating ring is shown in fig. 6.
In fig. 5, the shielding ring 3 is a stepped housing structure, and a first clamping groove 301 is further formed in the inner side of the upper portion of the shielding ring 3 and used for clamping with an external device. Can utilize first joint groove to come the joint external equipment like this, improve the connection stability between the equipment. The inner side surface of the lower end of the shielding ring 3 is provided with a third annular groove, which corresponds to the second annular groove 202 of the equipotential ring.
The embodiment utilizes the annular groove on the outer side of the shaft of the bottom layer to be fixedly connected with the annular grooves at the corresponding positions of the equipotential ring and the shielding ring through the insulating ring, so that the radial stability of the single-pole capacitive sensor is improved.
Here, the measuring electrode may be realized by an axial stepped structure including three or more axes. Therefore, the effect of detachability and high assembly precision of the unipolar capacitive sensor of the invention is not influenced. In the shaft-shaped stepped structure formed by three shafts or more than three shafts, except the shaft at the topmost layer of the measuring electrode, at least one shaft outside of the other shafts is provided with an annular groove.
Referring to fig. 19 and 20, there is also provided a connector device for mating with a single pole capacitive sensor as described above, as shown in fig. 21 and 22.
In a specific implementation, the joint device comprises an outer shell 7, an outer shell wire seat 8, an equipotential layer 5, an equipotential layer wire seat 6, and a measurement layer 9; the outer shell layer 7, the equipotential layer 5 and the measuring layer 9 are assembled from outside to inside in sequence; the outer shell layer wire seat 8, the equipotential layer wire seat 6 and the measuring layer 9 are respectively and correspondingly connected with the outermost layer, the middle layer and the conducting layer of the three-coaxial cable; the outer shell layer wire seat 8 is installed at one end of the outer shell layer 7, and the other end of the outer shell layer 7 extends into the shielding ring 3 of the single-pole capacitive sensor and is connected in a plug-in mode; the equipotential layer wire seats 6 are arranged at two ends of the equipotential layer 5, and the measuring layer 9 is connected with the measuring electrode 1 of the single-pole capacitive sensor. This embodiment adopts shell layer and shell layer line seat, equipotential layer and equipotential layer line seat, measuring layer, realizes the good conduction of the three-layer conducting layer of cable and unipolar capacitance sensor.
In a specific implementation, the measurement minuscule axis 101 is connected to a sensor-side bore 902 of the measurement layer 9 of the joint arrangement. The small end 201 of the equipotential ring is connected to the equipotential layer 5 of the joint arrangement.
In specific implementation, a second clamping groove is formed in the inner side of the outer shell layer 7, a second annular protrusion 801 is arranged on the outer side of the outer shell layer wire seat 8, and the second annular protrusion 801 is clamped in the second clamping groove.
Specifically, as shown in fig. 11 and 12, the inner side 803 of the sheath wire holder may be connected to the outermost layer of the triaxial cable by soldering and conductive adhesive, and to the sheath 7 by a snap mechanism.
As shown in fig. 13 and 14, the outer shell 7 is a shell structure, and the small end surface of the outer shell is a first annular protrusion 701, which cooperates with the first snap groove 301 inside the small end of the shielding layer of the sensor to form a snap device. A plurality of (for example, four) third slits 702 are cut at the small end of the outer shell layer, so that good flexibility and good detachability of the buckle device are ensured. The large end face 7 of the outer shell layer is connected with the wire seat 8 of the outer shell layer through a clamping mechanism matched with the second clamping groove 703 and the second annular protrusion 801. Specifically, one end of the outer shell 7 is provided with a first annular protrusion 701 matched with the first clamping groove 301. The annular protrusion and the clamping groove are assembled, so that the detachable plug mechanism which is reliable and practical can be realized, and the good detachability of the joint device and the single-pole capacitance sensor can be realized.
As shown in fig. 7-10, the equipotential layer 5 is connected to the equipotential layer wire seat 6 and the equipotential ring 2 of the unipolar capacitive sensor at its two ends. A plurality of (for example, 4:) second slits 602 are cut at one side connected with the equipotential ring 2, so that good flexibility is ensured when the equipotential ring is inserted into or pulled out of the sensor equipotential ring. A third clamping groove is formed in the inner side of the equipotential layer 5, a third annular protrusion 601 is arranged on the outer side of the equipotential layer wire seat 6, and the third annular protrusion 601 is clamped in the third clamping groove 503. The equipotential layer 5 and the equipotential layer wire holder 6 are connected by a snap mechanism with the third snap groove 503 and the third annular protrusion 601 matching. The equipotential layer wire seat 6 is connected with the middle layer of the triaxial cable through soldering or conductive adhesive on the inner side 603, and is connected with the equipotential layer 5 through a buckling mechanism on the outer side.
As shown in fig. 15 and 16, the measurement layer 9 is a columnar body with holes at both ends, the hole 903 on the cable side is connected to the innermost conductive layer of the triaxial cable by soldering or conductive adhesive, and the hole 902 on the sensor side is connected to the measurement minimum axis 101 of the sensor. And a fifth gap 901 is cut at one side of the measuring pole, so that the flexibility in plugging is ensured.
Specifically, the first insulating sheath 10 is disposed between the equipotential layer 5 and the measurement layer 9, and plays a role of insulation and fixation. Meanwhile, the stepped shaft 1001 and the equipotential layer stepped hole 502 are combined to ensure good rigid connection in the axial direction. The second insulating sleeve 11 is arranged between the equipotential layer 5 and the outer shell layer 7 and plays a role in insulation and fixation. Meanwhile, the stepped shaft 1101 and the equipotential layer stepped hole 704 are combined to ensure good rigid connection in the axial direction.
The connection between the conducting layer on the outer side of the cable and the sensor shielding ring 3 is realized through the outer shell layer 7 and the outer shell layer wire seat 8; the connection between the middle conducting layer of the cable and the sensor equipotential ring 2 is realized through the equipotential layer 5 and the equipotential layer wire seat 6; the connection of the innermost conductive layer of the cable to the sensor measuring pole 1 is achieved by means of the measuring layer 9. And due to the adoption of the buckle mechanism and the gap, good plugging practicability is ensured.
The plug-in type single-pole capacitor and the connector device can be applied to the fields of piezoelectric micro displacement, micro size, micro vibration and the like, and have wide application in the field of precision measurement.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A single-pole capacitive sensor is characterized by comprising a measuring pole, an equipotential ring, a shielding ring and an insulating ring; the measuring electrode, the equipotential ring and the shielding ring are of stepped structures, and the measuring electrode, the equipotential ring and the shielding ring are coaxial and are assembled from inside to outside in sequence; annular grooves are formed in the same horizontal height and opposite positions of the measuring electrode, the equipotential ring and the shielding ring, and an insulating ring which is fixed in the radial direction is arranged between any two opposite annular grooves.
2. The monopole capacitive sensor as claimed in claim 1 wherein the inner side of the upper portion of the shielding ring further defines a first engaging groove for engaging with an external device.
3. The unipolar capacitive sensor of claim 1 wherein the measuring electrodes are in an axial stepped configuration.
4. The unipolar capacitive sensor of claim 3 wherein the measurement pole defines an annular groove on an outer axial side thereof.
5. A connector device for a single-pole capacitive sensor according to any one of claims 1 to 4, wherein the connector device is adapted for a plug-in connection.
6. A joining means according to claim 5, wherein said joining means comprises an outer skin, an outer skin wire mount, an equipotential skin wire mount, and a measurement layer; the outer shell layer, the equipotential layer and the measuring layer are assembled from outside to inside in sequence; the outer shell layer wire seat, the equipotential layer wire seat and the measuring layer are respectively and correspondingly connected with the outermost layer, the middle layer and the conducting layer of the three-coaxial cable; the shell layer wire seat is arranged at one end of the shell layer, and the other end of the shell layer extends into the shielding ring of the single-pole capacitive sensor and is connected in a plug-in mode; the equipotential layer wire seats are arranged at two ends of the equipotential layer, and the measuring layer is connected with the measuring electrode of the single-pole capacitive sensor.
7. The joint device of claim 6, wherein one end of the outer shell is provided with a first annular protrusion matching with the first catching groove.
8. A connector system according to claim 7, wherein the end of the outer housing provided with the annular projection is provided with a plurality of longitudinal slits.
9. The joint device according to claim 7, wherein the inner side of the outer shell is provided with a second clamping groove, and the outer side of the wire seat of the outer shell is provided with a second annular protrusion clamped in the second clamping groove.
10. The joint device according to claim 7, wherein a third clamping groove is formed in the inner side of the equipotential layer, a third annular protrusion is arranged on the outer side of the equipotential layer wire seat, and the third annular protrusion is clamped in the third clamping groove;
or
One end of the measuring layer connected with the measuring electrode is also provided with a plurality of longitudinal gaps;
or
And insulating sleeves are arranged between the equipotential layer and the measuring layer and between the equipotential layer and the outer shell layer so as to realize the functions of insulation and fixation.
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| CN202110355429.2A CN113029209B (en) | 2021-04-01 | 2021-04-01 | Monopole capacitive sensor and connector device |
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