CN104237655B - Electric potential signal lead-in device of spherical sensor for space electric field detection - Google Patents
Electric potential signal lead-in device of spherical sensor for space electric field detection Download PDFInfo
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- CN104237655B CN104237655B CN201410447072.0A CN201410447072A CN104237655B CN 104237655 B CN104237655 B CN 104237655B CN 201410447072 A CN201410447072 A CN 201410447072A CN 104237655 B CN104237655 B CN 104237655B
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- conductive ring
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- shielding case
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- elastic washer
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Abstract
The invention discloses an electric potential signal lead-in device of a spherical sensor for space electric field detection, and through the electric potential signal lead-in device, the induction electric potential on the surface of the spherical shell of the space sensor can be reliably led in the inner measurement circuit of the spherical shell. The end of a supporting column sequentially passes through a signal measurement circuit board, a first sleeve, a shielding shell, a second sleeve, a protecting flat gasket, an elastic washer, a conductive ring and an outer spherical shell, and finally, a threaded sleeve is screwed tightly so that the upper surface of the conductive ring can make contact with the outer spherical shell, and the elastic washer is tightly pressed. A guiding structure is composed of two equal-length guiding tubes and a connecting piece for connecting the guiding tubes; the two guiding tubes penetrate through holes formed in the shielding shell and stretch into the shielding shell, and the connecting piece is located outside the shielding shell; a supporting rod installed on the signal measurement circuit board penetrates through one guiding tube and then is fixed to the stretch-out end of the conductive ring through a nut outside the shielding shell, a signal lead led out of the signal measurement circuit board penetrates through the other guiding tube and then is electrically connected with the stretch-out end of the conductive ring outside the shielding shell.
Description
Technical field
The invention belongs to Space environment detection technical field, more particularly, to a kind of spherical biography being applied to space electric field detection
Sensor surfaces induced potential introducing device.
Background technology
The potential that space electric field detects the space plasma ambient being to sense its place using sensor surface reaches electricity
The purpose of field measurement.Fig. 1 shows a kind of spherical sensors for space exploration electric field, and it adopts outer spherical shell as sensing electricity
The part of gesture, by potential introducing device will sense potential introduce outer spherical shell within circuit board, be provided with inside outer spherical shell for
The shielding case of protection circuit plate.
In order that the space electric field signal that outer spherical shell senses reliably accesses the circuit board within spherical shell, need design a kind of
Be suitable for, reliable sensor potential introduce structure, at present also not using this spline structure in space electric field detection sensor
Electric potential signal introducing device, it is difficult that this structure solves the problems, such as that space electric field detection spherical sensor electric potential signal introduces.
Content of the invention
In view of this, the invention provides a kind of spherical sensors surface induction potential being applied to space electric field detection draws
Enter device, reliably the induced potential signal on airborne sensor spherical shell surface can be incorporated into spherical shell internal measurement circuit.
In order to solve above-mentioned technical problem, the present invention is achieved in that
A kind of spherical sensors surface induction potential introducing device being applied to space electric field detection, described spherical sensors
Including support column, circuitry for signal measurement plate, shielding case and outer spherical shell；Described introducing device includes: first sleeve, the second sleeve pipe,
Protection plain cushion, elastic washer, conductive ring, guide structure and threaded sleeve；
The end of support column sequentially pass through circuitry for signal measurement plate, first sleeve, shielding case, the second sleeve pipe, protection plain cushion,
Elastic washer, conductive ring and outer spherical shell, finally pass through screw thread sleeve pipe in the end of support column, make conductive ring upper surface with outward
Spherical shell contacts, and elastic washer is compacted；
Guide structure is made up of the connector of two isometric guiding tubes and connection two guiding tubes；Two guiding tubes pass through screen
Cover the perforate above shell and stretch into inside shielding case, connector is located at outside shielding case；
The support bar installed on circuitry for signal measurement plate passes through one of outer and conductive ring in shielding case after guiding tube
Lean out end to fix, the signal lead that circuitry for signal measurement plate is drawn is outer and conductive ring in shielding case through after another guiding tube
Lean out end electrical connection.
Preferably, by guiding the design of length of tube so that guiding tube not activation signal measuring circuit plate.
Preferably, described support bar be screw rod, be fixed on circuitry for signal measurement plate by nut, and this support bar with lead
The end that leans out of electric circle is fixed by nut.
Preferably, signal lead and the electrical connection leaning out end of conductive ring are to be leant out signal lead with described by nut
Side pressure consolidation is existing.
Preferably, described elastic washer is ring washer, the uniform t type otch of cylindrical circumference of ring washer, each two t type
The arc section two ends being formed between otch are reversely bent in face on the basis of the plane of ring washer place.
Preferably, the thickness of described ring washer is less than 0.3mm.
Beneficial effect:
(1) sphere sense answers electric potential signal to introduce internal measurement circuit
Outer spherical shell 6 surface induction electric potential signal introduces signal lead 9 by conductive ring 5, and signal lead 9 is directly connected to letter
In number measuring circuit plate 10, thus reliably the induced potential signal on airborne sensor spherical shell surface is incorporated into inside spherical shell surveying
Amount circuit.
(2) closely spaced locking between parts
The power of threaded sleeve 11 puts on outer spherical shell 6, and outer spherical shell 6 extrudes conductive ring 5, and conductive ring 5 extrudes elastic washer 4,
After elastic washer 4 deformation, power is applied on protection plain cushion 3, protection plain cushion 3 Hard link is on sleeve pipe 2, thus serving whole
Internal structure locking, improve signal introducing reliability.
(3) the fixing dual function of small-scale structure internal signal wire threading and electric potential signal introducing device
The guiding tube that signal lead 9 passes through guide structure from circuitry for signal measurement plate 10 is connected to conductive ring 5, same
Strut passes through another guiding tube of guide structure from measuring circuit plate 10, is then passed through conductive ring 5 and carries out fastening structure, and such one
Individual small-scale structure is simultaneously achieved the dual function of lead threading and fastening structure, improves the reliability of signal introducing.
(4) guiding tube Design of length
By guiding the design of length of tube so that guiding tube not activation signal measuring circuit plate 10, thus leaving certain
Redundancy, will not lead to mutual power effect between shielding case and circuit board and deform because of tightening of threaded sleeve 11, and prevent letter
Number it is released to screen layer, improve the reliability of signal introducing.
(5) the loss prevention design of elastic washer
The elastic washer of the present invention, because t type otch both direction is all cut, then can increase the flexibility of elastic component, keep away
Exempt from the damage to peripheral parts for the too strong elastic component, improve the reliability of signal introducing.
Brief description
Fig. 1 is the spherical sensors for space exploration electric field.
Fig. 2 be spherical sensors surface induction potential introducing device of the present invention annexation schematic diagram (outer spherical shell cuts open
Depending on)；
Fig. 3 be spherical sensors surface induction potential introducing device of the present invention annexation schematic diagram (interior spherical shell cuts open
Depending on)；
Fig. 4 is the schematic diagram of guide structure of the present invention；
Fig. 5 is conductive ring structural representation of the present invention；
Fig. 6 is elastic washer structural representation of the present invention；
Wherein, 1- support column, 2- second sleeve pipe, 3- protection plain cushion, 4- elastic washer, 5- conductive ring, the outer spherical shell of 6-, 7- draw
Guide structure, 8- shielding case, 9- signal lead, 10- circuitry for signal measurement plate, 11- threaded sleeve, 12- first sleeve, 13-a and
13-b- guiding tube, 14- connector.
Specific embodiment
Develop simultaneously embodiment below in conjunction with the accompanying drawings, describes the present invention.
As depicted in figs. 1 and 2, the invention provides a kind of be applied to the spherical sensors surface induction that space electric field detects
Potential introducing device.Wherein spherical sensors include support column 1, circuitry for signal measurement plate 10, shielding case 8 and outer spherical shell 6.Signal
Measuring circuit plate 10, shielding case 8 and outer spherical shell 6 are installed on support column 1, are surveyed by the step surface framing signal on support column
Amount circuit board 10.The introducing device of the present invention includes first sleeve 12, the second sleeve pipe 2, protection plain cushion 3, elastic washer 4, conduction
Circle 5, guide structure 7 and threaded sleeve 11.
Signal introducing is realized in common cooperation to introducing device with the building block of spherical sensors.As illustrated, support column 1
End sequentially passes through circuitry for signal measurement plate 10, first sleeve 12, shielding case 8, the second sleeve pipe 2, protection plain cushion 3, elastic washer
4th, conductive ring 5 and outer spherical shell 6, finally in the end screw thread sleeve pipe 11 of support column 1, makes conductive ring 5 upper surface and outer spherical shell 6
Contact, and elastic washer 4 is compacted.
Wherein, the effect of first sleeve 12 and the second sleeve pipe 2 is the position limiting circuitry for signal measurement plate 10 and shielding case 8
Relation, and shielding case 8 and the position relationship protecting plain cushion.The effect of elastic washer 4 is the locking of whole internal structure.Conductive
Enclose 5 upper surfaces and contact the importing in order to realize potential with outer spherical shell 6.
As shown in figure 4, guide structure 7 is by two isometric guiding tube 13-a and 13-b, and connect this two guiding tubes
Connector 14 form, connector 14 is located at one end of guiding tube.Two guiding tubes 13-a, 13-b pass through above shielding case 8
Perforate is stretched into inside shielding case 8, and now connector 14 is located at outside shielding case 8, supports connector 14 by shielding case 8.
As shown in figure 5, conductive ring 5 is to have the conducting ring leaning out end, and surface gold-plating, lean out and through hole is had on end.Letter
In number measuring circuit plate 10, support bar is installed, support bar has external screw thread, support bar passes through on circuitry for signal measurement plate 10
After through hole, fixed by two nuts.Support bar is visited through conductive ring 5 after passing through one of guiding tube 13-a outside shielding case 8
Go out the through hole at end, then connector 14 upper surface in guide structure for the side pressure will be leant out using nut, it is achieved thereby that conductive ring 5
Fixation with guide structure.The signal lead 9 that circuitry for signal measurement plate 10 is drawn is shielding after passing through another guiding tube 13-b
Shell 8 is outer to be electrically connected with the end that leans out of conductive ring 5 so that potential collected by outer spherical shell after warp by conductive ring 5, guide structure
7th, signal lead 9 arriving signal measuring circuit plate 10.
It can be seen that, by the design of guide structure 7, a guiding tube realizes lead threading, and another guiding tube is realized and led
Electric circle 5 and the fastening structure of shielding case 8, such a small-scale structure is simultaneously achieved the dual work of lead threading and fastening structure
With.
Preferably, by guiding the design of length of tube so that guiding tube not activation signal measuring circuit plate 10, thus leaving
Certain redundancy, will not lead to mutual power effect between shielding case and circuit board and deform because of tightening of threaded sleeve 11, heavier
Want is that anti-stop signal is released to screen layer.
Present invention is alternatively directed to spherical sensors small volume, the feature being easily damaged devise a kind of suitable elasticity of elasticity
Packing ring, as shown in fig. 6, this elastic washer 4 is a kind of thickness is less than the ring washer that the thin-walled material of 0.3mm is made, air ring
The uniform t type otch of cylindrical circumference of circle, the arc section being formed between each two t type otch as elastic component, this elastic component two ends
On the basis of the plane of ring washer place, face reversely bends.Because t type otch both direction is all cut, then can increase elastic component
Flexibility, it is to avoid the damage to peripheral parts for the too strong elastic component.
In sum, these are only presently preferred embodiments of the present invention, be not intended to limit protection scope of the present invention.
All any modification, equivalent substitution and improvement within the spirit and principles in the present invention, made etc., should be included in the present invention's
Within protection domain.
Claims (6)
1. a kind of spherical sensors surface induction potential introducing device being applied to space electric field detection, described spherical sensors bag
Include support column (1), circuitry for signal measurement plate (10), shielding case (8) and outer spherical shell (6)；It is characterized in that, described introducing structure bag
Include: first sleeve (12), the second sleeve pipe (2), protection plain cushion (3), elastic washer (4), conductive ring (5), guide structure (7) and spiral shell
Stricture of vagina sleeve pipe (11)；
The end of support column (1) sequentially passes through circuitry for signal measurement plate (10), first sleeve (12), shielding case (8), the second sleeve pipe
(2), protection plain cushion (3), elastic washer (4), conductive ring (5) and outer spherical shell (6), finally passes through rotation in the end of support column (1)
Tight threaded sleeve (11), is made conductive ring (5) upper surface be contacted with outer spherical shell (6), and elastic washer (4) is compacted；
Guide structure (7) is made up of the connector (14) of two isometric guiding tubes (13-a, 13-b) and connection two guiding tubes；Two
Individual guiding tube (13-a, 13-b) stretches into shielding case (8) inside through shielding case (8) perforate above, and connector (14) is located at screen
Cover shell (8) outside；
The upper support bar installed of circuitry for signal measurement plate (10) pass through one of after guiding tube (13-a) shielding case (8) outward with
The end that leans out of conductive ring (5) is fixed, and the signal lead (9) that circuitry for signal measurement plate (10) is drawn passes through another guiding tube (13-
B) electrically connect with the end that leans out of conductive ring (5) outward in shielding case (8) after.
2. surface induction potential introducing device as claimed in claim 1 it is characterised in that by guide length of tube design,
Make guiding tube not activation signal measuring circuit plate (10).
3. surface induction potential introducing device as claimed in claim 1, it is characterised in that described support bar is screw rod, passes through
Nut is fixed on circuitry for signal measurement plate (10), and the end that leans out of this support bar and conductive ring (5) is fixed by nut.
4. surface induction potential introducing device as claimed in claim 3 is it is characterised in that signal lead (9) and conductive ring (5)
The electrical connection leaning out end be with described to lean out side pressure consolidation existing by nut by signal lead (9).
5. surface induction potential introducing device as claimed in claim 1 is it is characterised in that described elastic washer (4) is annular
Packing ring, the uniform t type otch of cylindrical circumference of ring washer, the arc section two ends being formed between each two t type otch are with air ring
On the basis of the plane of circle place, face reversely bends.
6. surface induction potential introducing device as claimed in claim 5 is it is characterised in that the thickness of described elastic washer is less than
0.3mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201410447072.0A CN104237655B (en) | 2014-09-04 | 2014-09-04 | Electric potential signal lead-in device of spherical sensor for space electric field detection |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410447072.0A CN104237655B (en) | 2014-09-04 | 2014-09-04 | Electric potential signal lead-in device of spherical sensor for space electric field detection |
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| CN104237655B true CN104237655B (en) | 2017-02-01 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105301373B (en) * | 2015-12-02 | 2018-11-16 | 中国电力科学研究院 | A kind of space charge density measuring device based on probe array |
| CN105301371B (en) * | 2015-12-02 | 2018-12-11 | 中国电力科学研究院 | A kind of space charge density measuring device based on faraday cup method |
| CN106785425B (en) * | 2016-11-30 | 2020-04-10 | 惠州Tcl移动通信有限公司 | Antenna connection structure of mobile terminal, mobile terminal and mobile phone |
| CN106597131B (en) * | 2016-12-19 | 2020-01-10 | 兰州空间技术物理研究所 | Ground signal input device for space electric field detection sensor |
| CN113377239B (en) * | 2021-07-02 | 2023-08-01 | 兰州空间技术物理研究所 | Compact type installation method for touch screen and circuit board |
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