CN115236144A - Short-circuiting device for single-ended probe calibration for liquid dielectric constant measurement - Google Patents
Short-circuiting device for single-ended probe calibration for liquid dielectric constant measurement Download PDFInfo
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- CN115236144A CN115236144A CN202210866459.4A CN202210866459A CN115236144A CN 115236144 A CN115236144 A CN 115236144A CN 202210866459 A CN202210866459 A CN 202210866459A CN 115236144 A CN115236144 A CN 115236144A
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- 239000000523 sample Substances 0.000 title claims abstract description 106
- 239000007788 liquid Substances 0.000 title claims abstract description 20
- 238000005259 measurement Methods 0.000 title claims abstract description 10
- 229910000906 Bronze Inorganic materials 0.000 claims description 24
- 239000010974 bronze Substances 0.000 claims description 24
- KUNSUQLRTQLHQQ-UHFFFAOYSA-N copper tin Chemical compound [Cu].[Sn] KUNSUQLRTQLHQQ-UHFFFAOYSA-N 0.000 claims description 24
- 229910052790 beryllium Inorganic materials 0.000 claims description 23
- ATBAMAFKBVZNFJ-UHFFFAOYSA-N beryllium atom Chemical compound [Be] ATBAMAFKBVZNFJ-UHFFFAOYSA-N 0.000 claims description 23
- 238000003780 insertion Methods 0.000 claims 1
- 230000037431 insertion Effects 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 9
- 238000000034 method Methods 0.000 description 7
- 229910052751 metal Inorganic materials 0.000 description 6
- 239000002184 metal Substances 0.000 description 6
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 4
- 229910052802 copper Inorganic materials 0.000 description 4
- 239000010949 copper Substances 0.000 description 4
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 4
- 239000010931 gold Substances 0.000 description 4
- 229910052737 gold Inorganic materials 0.000 description 4
- 230000007547 defect Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000001028 reflection method Methods 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- QRJOYPHTNNOAOJ-UHFFFAOYSA-N copper gold Chemical compound [Cu].[Au] QRJOYPHTNNOAOJ-UHFFFAOYSA-N 0.000 description 1
- 239000008367 deionised water Substances 0.000 description 1
- 229910021641 deionized water Inorganic materials 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 238000001727 in vivo Methods 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000000741 silica gel Substances 0.000 description 1
- 229910002027 silica gel Inorganic materials 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/02—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance
- G01N27/22—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating capacitance
- G01N27/221—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating capacitance by investigating the dielectric properties
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/02—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance
- G01N27/22—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating capacitance
- G01N27/228—Circuits therefor
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- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
Abstract
The invention discloses a short-circuit device for single-ended probe calibration for liquid dielectric constant measurement; the structure comprises a shell, wherein a clamping ring for fixing a single-ended probe is arranged in the shell, a locking nut for locking the clamping ring is arranged on the side wall of the shell, an upper cover is arranged at the upper part of the shell, an adjusting nut is arranged at the lower part of the shell, and a short circuit block for short-circuiting the single-ended probe is arranged at the inner bottom of the adjusting nut; the other structure comprises a shell, wherein a single-ended probe mounting groove is formed in the side wall of the upper end of the shell, an adjusting nut is arranged at the lower end of the shell, a short circuit block for short-circuiting the single-ended probe is arranged at the top end of the adjusting nut, and the height of the short circuit block is adjusted by controlling the tightness of the adjusting nut; after the single-ended probe is inserted, the adjusting nut is locked, the short circuit block is lifted, and the end face of the short circuit block is contacted with the end face of the single-ended probe, so that the short circuit of the single-ended probe is realized. The invention ensures seamless contact between the short circuit part and the end face of the probe through fine adjustment of the thread, reduces the introduction of human errors, has good short circuit effect and ensures the accuracy of calibration.
Description
Technical Field
The invention relates to a short-circuit device, in particular to a short-circuit device for calibrating a single-ended probe for measuring liquid dielectric constant.
Background
In the measurement of the dielectric constant of liquid, the coaxial open-circuit terminal based on the single-end reflection method has been drawing attention due to the characteristics of simple structure, wide-band coverage, on-line and in-vivo.
When the single-end method measurement is carried out according to the classical error model, only three error terms in the single-end reflection method model need to be corrected. Normally a shunt (reflection factor of 1), a short (reflection factor of-1) and a load (reflection factor known) are chosen as calibration standards.
At present, a single-end method is adopted to measure the dielectric constant of liquid, in order to ensure the accuracy of measurement, an open circuit is realized in air, a load is realized by deionized water based on a Cole-Cole model, and a short circuit is realized by adopting metal as a short circuit standard. Open circuit and load calibration are easy to realize, and the short circuiter easily brings the influence of edge inductance due to the incompleteness of the contact of the probe and the short circuiter, so that the change of reflection coefficient phase can be caused, and further, errors exist. The calibration requirements for short circuits need to be further increased.
At present, foreign manufacturers have Keysight N1501A, SPEAG, keycom and the like, and similar devices are not available at home. All foreign short-circuit devices directly use a metal sheet (copper or copper-plated gold) to be in direct hard-connection contact with a probe in a measuring system to form a short circuit, so that short-circuit calibration is carried out. During operation, the contact between the shorting strip and the probe surface is realized through a thread form, but the repeatability of the shorting piece is reduced due to inevitable abrasion between metals, and the calibration uncertainty is further influenced.
The prior art has the following defects:
in addition, at present, foreign products are complex in structure, accessories are not easy to replace, short circuit is achieved through gold-plated copper sheets and conductive rubber, the resistance of the conductive rubber is large, and the short circuit effect is not ideal. The conductive rubber and the metal elastic sheet are both used as short-circuit sheets to carry out short-circuit calibration, however, resistance value instability is caused by resistance relaxation behavior of the conductive rubber, the short-circuit effect of the conductive resistor is further influenced, and when the gold-plated copper sheet is used as a short-circuit calibration piece, complete seamless contact cannot be guaranteed due to intermetallic friction and deformation, so that higher requirements are put forward on a short-circuit device, and the probe is guaranteed to form a good short circuit through mechanics.
At present, the short circuit calibration piece partially uses conductive rubber, and partially uses a pure metal sheet (copper or copper gold plating), so that the normal complete fit of the short circuit piece cannot be well ensured, the accurate calibration effect cannot be achieved, and meanwhile, the short circuit piece and a probe are easily abraded; meanwhile, the operation process becomes complicated due to the structure of the short-circuit piece; human error is easily generated during the operation due to volume and weight.
Disclosure of Invention
The invention aims to overcome the defects in the prior art, and provides a short-circuit device for calibrating a single-ended probe for measuring the dielectric constant of liquid.
The purpose of the invention can be realized by the following technical scheme.
The invention discloses a short-circuit device for calibrating a single-ended probe for measuring liquid dielectric constant, which comprises a shell, wherein a single-ended probe channel is arranged in the shell along an axis, a clamping ring for fixing the single-ended probe is arranged in the upper end of the shell, and a locking nut is arranged on the side wall of the shell and used for locking the clamping ring and fixing the single-ended probe; the upper portion of the shell is provided with an upper cover, the lower portion of the shell is provided with an adjusting nut used for adjusting the height of the short circuit block, and the bottom of the inner portion of the adjusting nut is provided with the short circuit block used for short circuit single-ended probe.
The upper end of the shell is provided with an internal thread used for being connected with the upper cover, and the lower end of the shell is provided with an external thread used for being connected with the adjusting nut; a groove for placing a snap ring is formed in the upper end of the shell, and a groove for placing a short circuit block is formed in the lower end of the shell from the lower surface to the upper part; and the side wall of the shell is provided with a shell hole for inserting the locking nut.
The upper cover is provided with a through hole for inserting the single-ended probe, and the through hole and the single-ended probe channel of the shell are arranged along a coaxial line.
The clamp ring is located below the upper cover, a channel through which the single-ended probe passes is longitudinally formed, a threaded hole used for being locked with the locking nut is transversely formed, and the clamp ring is enabled to move in a radial eccentric mode by screwing the locking nut, so that the single-ended probe is locked and fixed.
The short circuit block comprises a base and a pressing ring, the base is of a hollow structure, external threads used for being connected with the pressing ring are arranged at the upper end of the base, a conductive rubber sheet is arranged at the top end of the base, a gold-plated beryllium bronze sheet is arranged on the upper surface of the conductive rubber sheet, the conductive rubber sheet and the gold-plated beryllium bronze sheet are fixed between the pressing ring and the base through threaded connection, and after the single-ended probe is inserted, the gold-plated beryllium bronze sheet is in contact with the end face of the probe, so that short circuit of the single-ended probe is realized.
The purpose of the invention can be realized by the following technical scheme.
The short-circuit device for calibrating the single-ended probe for measuring the dielectric constant of the liquid is characterized by comprising a shell, wherein a single-ended probe mounting groove is formed in the upper end of the shell inwards from the side wall of the shell, an adjusting nut is arranged at the lower end of the shell, a short-circuit block for short-circuiting the single-ended probe is arranged at the top end of the adjusting nut, and the height of the short-circuit block is adjusted by controlling the tightness of the adjusting nut; after the single-ended probe is inserted, the adjusting nut is locked, the short circuit block is lifted, and the end face of the short circuit block is contacted with the end face of the single-ended probe, so that the short circuit of the single-ended probe is realized.
The casing sets up to hollow structure, the casing lower extreme is provided with the internal thread that is used for connecting adjusting nut, the inside boss that is used for short circuit piece axial spacing that is provided with of casing, and this boss is provided with the rotatory axial pin of preventing the short circuit piece, the casing lower part is provided with the radial pin that is used for adjusting nut axial spacing.
The short circuit block comprises a base, a conductive rubber sheet is arranged at the top end of the base, a gold-plated beryllium bronze sheet is arranged on the upper surface of the conductive rubber sheet, and after the single-ended probe is inserted, the gold-plated beryllium bronze sheet is contacted with the end face of the probe, so that short circuit of the single-ended probe is realized.
The diameter of the upper part of the base is smaller than that of the lower part of the base, and the lower part of the base is provided with an axial pin hole.
Compared with the prior art, the technical scheme of the invention has the following beneficial effects:
(1) The invention can better ensure the overall contact of the shorting strip and the probe by utilizing a thread fine adjustment mode, reduces the introduction of human errors, ensures the effectiveness of short circuit, achieves good short circuit effect and further ensures the accuracy of calibration.
(2) The short circuit part adopts the conductive rubber and the gold plated beryllium bronze sheet, so that the short circuit surface can be slightly deformed when the device is used, the buffer is brought to the contact process of the probe and the short circuit sheet, the short circuit part is further ensured to be more tightly attached to the end surface of the single-ended probe, the probe and the short circuit piece are ensured to be well contacted, the better short circuit effect is realized, the service life is prolonged, and the repeatability of calibration is ensured.
(3) According to the invention, by reducing the volume of the part, removing redundant materials from a larger part and other methods, the size and the weight of the part are improved and reduced, the structure is simplified, the part is small and exquisite, is flexible and convenient for further operation, the calibration convenience and the operation convenience are enhanced, the short circuit part is easier to replace, the operation is convenient, and the part is convenient to replace after being used for a long time.
Drawings
FIG. 1 is a perspective view of a short-circuiting device (large passage) in example 1;
FIG. 2 is a front view of the short-circuiting device (large passage) in embodiment 1;
FIG. 3 is a perspective view of a short-circuiting device (small passage) in example 1;
FIG. 4 is a front view of a short-circuiting device (small passage) in embodiment 1;
fig. 5 is a perspective view of a short-circuiting device in embodiment 2;
FIG. 6 is a front view of a short-circuiting device in embodiment 2;
reference numerals are as follows: 1-an upper cover, 2-a shell, 3-an adjusting nut, 4-a locking nut, 5-a snap ring, 6-a press ring,
7-base, 8-axial pin, 9-radial pin.
Detailed Description
The invention is further described below with reference to the accompanying drawings.
The invention provides a short-circuit device which has simple structure, high conductivity, low compression, excellent electromagnetic shielding performance, metal foil layer and conductive silica gel, is suitable for different single-ended probes, realizes short-circuit calibration during single-ended probe calibration, can be mainly processed and manufactured by stainless steel materials, has stable and simple structure, is convenient and stable to connect, and improves the short-circuit effect.
Example 1
As shown in fig. 1 to 4, the short-circuiting device for calibrating a single-ended probe for measuring the dielectric constant of liquid mainly comprises a housing 2, an upper cover 1, a locking nut 4, a snap ring 5, an adjusting nut 3 and a short-circuiting block.
A single-ended probe channel is arranged in the shell 2 along the axis, and the size of the single-ended probe channel can be specifically designed according to the size of the single-ended probe. The upper end of the shell 2 is provided with an internal thread used for being connected with the upper cover 1, and the lower end of the shell is provided with an external thread used for being connected with the adjusting nut 3. The inside recess that is used for placing snap ring 5 that is provided with of casing 2 upper end, the lower extreme upwards offers the recess that is used for placing the short circuit piece from the lower surface. And a shell hole for inserting the locking nut 4 is formed in the side wall of the shell 2, and the axis of the shell hole is perpendicular to the axis of the single-ended probe channel.
The upper cover 1 is arranged on the upper part of the shell 2 and is connected with the shell through threads, and the upper cover 1 is provided with a through hole for inserting a single-ended probe and is arranged along a coaxial line with a single-ended probe channel of the shell 2.
And the locking nut 4 is arranged on the side wall of the shell 2 and used for locking the clamping ring 5 and fixing the single-ended probe.
The clamp ring 5 is arranged in a groove in the upper end of the shell 2 and located below the upper cover 1, the clamp ring 5 is longitudinally provided with an axial channel through which a single-ended probe passes, a threaded hole used for being locked with the locking nut 4 is transversely formed in the clamp ring, and the clamp ring 5 is enabled to move in a radial eccentric mode by screwing the locking nut 4, so that the single-ended probe is locked and fixed.
The adjusting nut 4 is arranged at the lower part of the shell 2 and is connected with the lower part of the shell through threads and used for adjusting the height of the short circuit block.
The short circuit block is arranged at the inner bottom of the adjusting nut 4, is positioned in a groove in the lower end of the shell 2 and is used for short-circuiting the single-ended probe. The short circuit block comprises a base 7 and a pressing ring 6, the base 7 is of a hollow structure, external threads used for being connected with the pressing ring 6 are arranged at the upper end of the base 7, a conductive rubber sheet is arranged at the top end of the base 7, a gold-plated beryllium bronze sheet is arranged on the upper surface of the conductive rubber sheet, the conductive rubber sheet and the gold-plated beryllium bronze sheet are fixed between the pressing ring 6 and the base 7 through threaded connection, and after the single-ended probe is inserted, the gold-plated beryllium bronze sheet is in contact with the end face of the probe, so that short circuit of the single-ended probe is realized. The specific operation process adopted by the beryllium plated bronze sheet is arranged on the upper surface of the conductive rubber sheet: beryllium bronze with the thickness of 0.1mm is covered on the upper surface of the conductive rubber sheet, and the surface of the beryllium bronze is plated with gold. When the short-circuit probe is used, the short-circuit surface can be slightly deformed, so that the single-ended probe port is more tightly attached, and a better short-circuit effect is realized.
When the device is used, the adjusting nut 3 at the bottom is loosened, the short-circuit block is lowered, the locking nut 4 on the side surface is adjusted to enable the axial channel of the snap ring 5 to be aligned with the single-end probe channel of the shell 2, the single-end probe is inserted to the bottom from the upper cover 1, the locking nut 4 on the side surface is locked to fix the single-end probe, then the adjusting nut 3 below is screwed, the short-circuit block is lifted, the gold-plated beryllium bronze sheet of the short-circuit block is tightly combined with the end surface of the single-end probe, and short circuit of the single-end probe is achieved.
Example 2
As shown in fig. 5 and 6, the short-circuiting device for calibrating a single-ended probe for measuring the dielectric constant of liquid is characterized by mainly comprising a shell 2, an adjusting nut 3 and a short-circuiting block.
The adjusting nut 3 is arranged at the lower end of the shell 2 and is connected with the lower end of the shell through threads and used for adjusting the height of the short circuit block.
The short circuit block is arranged at the top end of the adjusting nut 3, is positioned inside the shell 2, is limited through a boss, and is used for short circuit single-end probes and adjusting the height of the short circuit block by controlling the tightness of the adjusting nut 3. The short circuit piece includes base 7, the partial diameter is less than lower partial diameter on the base 7, and lower part is provided with the axial cotter hole. The conductive rubber sheet is arranged at the top end of the base 7, the gold-plated beryllium bronze sheet is arranged on the upper surface of the conductive rubber sheet, after the single-ended probe is inserted, the adjusting nut 3 is locked, the short circuit block is lifted, the gold-plated beryllium bronze sheet is in contact with the end face of the probe, and short circuit of the single-ended probe is realized. The specific operation process adopted by the beryllium plated bronze sheet is arranged on the upper surface of the conductive rubber sheet: beryllium bronze with the thickness of 0.1mm is covered on the upper surface of the conductive rubber sheet, and the surface of the beryllium bronze is plated with gold. When the short-circuit probe is used, the short-circuit surface can be slightly deformed, so that the single-ended probe port is more tightly attached, and a better short-circuit effect is realized.
When the short-circuit device is used, the adjusting nut 3 at the bottom is loosened, the short-circuit block is lowered, the single-end probe is inserted into the mounting groove in the side wall of the shell 2, then the adjusting nut 3 is locked, the short-circuit block is raised, the gold-plated beryllium bronze sheet of the short-circuit block is made to be in contact with the end face of the single-end probe, and the single-end probe is fixed with the short-circuit device to realize short circuit.
While the present invention has been described in terms of its functions and operations with reference to the accompanying drawings, it is to be understood that the invention is not limited to the precise functions and operations described above, and that the above-described embodiments are illustrative rather than restrictive, and that various changes and modifications may be effected therein by one skilled in the art without departing from the scope or spirit of the invention as defined by the appended claims.
Claims (9)
1. The short-circuit device for calibrating the single-ended probe for measuring the dielectric constant of the liquid is characterized by comprising a shell (2), wherein a single-ended probe channel is arranged in the shell (2) along an axis, a clamping ring (5) for fixing the single-ended probe is arranged in the upper end of the shell (2), and a locking nut (4) is arranged on the side wall of the shell (2) and used for locking the clamping ring (5) and fixing the single-ended probe; the upper cover (1) is arranged on the upper portion of the shell (2), the adjusting nut (3) used for adjusting the height of the short circuit block is arranged on the lower portion of the shell, and the short circuit block used for short circuit single-ended probe is arranged at the bottom of the adjusting nut (3).
2. The short-circuiting device for single-ended probe calibration for liquid dielectric constant measurement according to claim 1, wherein the housing (2) is provided at an upper end with an internal thread for connection with the upper cover (1) and at a lower end with an external thread for connection with the adjusting nut (3); a groove for placing the clamping ring (5) is formed in the upper end of the shell (2), and a groove for placing the short circuit block is formed in the lower end of the shell from the lower surface to the upper part; and the side wall of the shell (2) is provided with a shell hole for inserting the locking nut (4).
3. The short-circuiting device for single-ended probe calibration for liquid permittivity measurement according to claim 1, wherein the upper cover (1) is provided with a through hole for single-ended probe insertion, arranged along a coaxial line with the single-ended probe channel of the housing (2).
4. The short-circuit device for calibrating the single-ended probe for measuring the dielectric constant of the liquid according to claim 1, wherein the snap ring (5) is located below the upper cover (1), a channel through which the single-ended probe passes is longitudinally arranged, a threaded hole for locking with the locking nut (4) is transversely arranged, and the snap ring (5) is radially and eccentrically moved by screwing the locking nut (4) so as to lock and fix the single-ended probe.
5. The short-circuit device for calibrating the single-ended probe for measuring the dielectric constant of the liquid according to claim 1, wherein the short-circuit block comprises a base (7) and a pressing ring (6), the base (7) is of a hollow structure, an external thread for connecting the pressing ring (6) is arranged at the upper end of the base (7), a conductive rubber sheet is arranged at the top end of the base (7), a gold-plated beryllium bronze sheet is arranged on the upper surface of the conductive rubber sheet, the conductive rubber sheet and the beryllium-plated bronze sheet are fixed between the pressing ring (6) and the base (7) through threaded connection, and after the single-ended probe is inserted, the gold-plated beryllium bronze sheet is in contact with the end surface of the probe to realize short circuit of the single-ended probe.
6. The short-circuit device for calibrating the single-ended probe for measuring the liquid dielectric constant is characterized by comprising a shell (2), wherein a single-ended probe mounting groove is formed in the upper end of the shell (2) from the side wall inwards, an adjusting nut (3) is arranged at the lower end of the shell (2), a short-circuit block for short-circuiting the single-ended probe is arranged at the top end of the adjusting nut (3), and the height of the short-circuit block is adjusted by controlling the tightness of the adjusting nut (3); after the single-ended probe is inserted, the adjusting nut (3) is locked, the short circuit block is lifted, and the end face of the short circuit block is contacted with the end face of the single-ended probe, so that the short circuit of the single-ended probe is realized.
7. The short-circuiting device for single-ended probe calibration for liquid permittivity measurement according to claim 6, wherein the housing (2) is provided as a hollow structure, the lower end of the housing (2) is provided with an internal thread for connecting the adjusting nut (3), a boss for short-circuiting block axial limitation is provided inside the housing (2) and provided with an axial pin (8) for preventing rotation of the short-circuiting block, and a radial pin (9) for adjusting the nut (3) axial limitation is provided at the lower part of the housing (2).
8. The short-circuiting device for calibrating the single-ended probe used for measuring the dielectric constant of the liquid according to claim 6, wherein the short-circuiting block comprises a base (7), a conductive rubber sheet is arranged at the top end of the base (7), a gold-plated beryllium bronze sheet is arranged on the upper surface of the conductive rubber sheet, and after the single-ended probe is inserted, the gold-plated beryllium bronze sheet is contacted with the end surface of the probe to realize the short-circuiting of the single-ended probe.
9. The short-circuiting device for single-ended probe calibration for liquid dielectric constant measurement according to claim 8, wherein the diameter of the upper portion of said base (7) is smaller than the diameter of the lower portion, the lower portion being provided with an axial pin hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210866459.4A CN115236144A (en) | 2022-07-22 | 2022-07-22 | Short-circuiting device for single-ended probe calibration for liquid dielectric constant measurement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210866459.4A CN115236144A (en) | 2022-07-22 | 2022-07-22 | Short-circuiting device for single-ended probe calibration for liquid dielectric constant measurement |
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|---|---|
| CN115236144A true CN115236144A (en) | 2022-10-25 |
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| CN202210866459.4A Pending CN115236144A (en) | 2022-07-22 | 2022-07-22 | Short-circuiting device for single-ended probe calibration for liquid dielectric constant measurement |
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| CN206114780U (en) * | 2016-09-20 | 2017-04-19 | 中石化石油工程技术服务有限公司 | Dielectric constant measures anchor clamps |
| CN206311670U (en) * | 2016-12-22 | 2017-07-07 | 华南理工大学 | Dielectric material measurement apparatus |
-
2022
- 2022-07-22 CN CN202210866459.4A patent/CN115236144A/en active Pending
Patent Citations (8)
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|---|---|---|---|---|
| JPH06265575A (en) * | 1993-03-16 | 1994-09-22 | Japan Synthetic Rubber Co Ltd | Fabrication of probe head |
| JPH10325812A (en) * | 1997-03-28 | 1998-12-08 | Fuji Elelctrochem Co Ltd | Compact probe for oblique incident measurement |
| JP2004170181A (en) * | 2002-11-19 | 2004-06-17 | Yokowo Co Ltd | Checking tool for high-frequency/high-speed device |
| CN101126778A (en) * | 2007-08-03 | 2008-02-20 | 西北工业大学 | Complex dielectric constant measuring apparatus |
| JP2011047856A (en) * | 2009-08-28 | 2011-03-10 | Institute Of National Colleges Of Technology Japan | Apparatus and method for measuring dielectric constant of liquid |
| CN105375155A (en) * | 2015-12-11 | 2016-03-02 | 中国电子科技集团公司第四十一研究所 | Coaxial probe short-circuit mechanism and operation method thereof |
| CN206114780U (en) * | 2016-09-20 | 2017-04-19 | 中石化石油工程技术服务有限公司 | Dielectric constant measures anchor clamps |
| CN206311670U (en) * | 2016-12-22 | 2017-07-07 | 华南理工大学 | Dielectric material measurement apparatus |
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