CN215180333U - Current injection probe calibration fixture - Google Patents
Current injection probe calibration fixture Download PDFInfo
- Publication number
- CN215180333U CN215180333U CN202120736463.XU CN202120736463U CN215180333U CN 215180333 U CN215180333 U CN 215180333U CN 202120736463 U CN202120736463 U CN 202120736463U CN 215180333 U CN215180333 U CN 215180333U
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- China
- Prior art keywords
- current injection
- coaxial
- injection probe
- inner core
- conductive inner
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Abstract
The utility model discloses a current injection probe calibration anchor clamps, include: a base; the two side plates are arranged on the base; the cover plate is detachably connected to the tops of the two side plates; the two mounting shaft sleeves are respectively penetrated and fixedly connected to the two side plates and are hollow; the two coaxial connectors are respectively arranged at one side end of the two mounting shaft sleeves which are far away from each other; the coaxial conductive inner core is arranged between the two side plates, and two ends of the coaxial conductive inner core respectively penetrate through the two mounting shaft sleeves and are respectively connected to the inner conductors of the two coaxial connectors; during calibration, the coaxial conductive inner core is sleeved with the current injection probe. The calibration fixture can realize the calibration of the current injection probe.
Description
Technical Field
The utility model belongs to the technical field of the current injection, especially, relate to a current injection probe calibration anchor clamps.
Background
With the rapid development of electronic technology, the applications of various electronic products are becoming more and more complex. Various products can produce mutual electromagnetic interference in the use, if electronic product equipment does not possess certain electromagnetic interference killing feature, can lead to not conform to corresponding standard and lead to the performance reduction, and then lead to the instrument can not normally work heavy then can produce the incident lightly. Therefore, under the common electromagnetic environment condition, the electronic product devices are not affected and are especially important to be compatible with each other.
The high-current injection technology is widely applied to an electromagnetic compatibility immunity test experiment, the influence of electromagnetic radiation on the tested equipment in a working state is simulated through high-current injection, and a current injection probe is the most critical equipment. The performance of the current injection probe directly affects the test result. The most basic performance index of the probe is measured by insertion loss, and a plurality of electromagnetic compatibility standards have certain requirements on the limit value of the insertion loss of the current probe. Calibration of the current injection probe therefore appears to be particularly important.
There are many calibration jig devices on the market today, but there are no calibration jig devices specifically for use with current injection probes.
SUMMERY OF THE UTILITY MODEL
In order to solve the above problems, the present invention provides a calibration fixture for current injection probe, which can realize the calibration of current injection probe.
In order to achieve the above purpose, the technical scheme of the utility model is that:
a current injection probe calibration fixture, comprising:
a base;
the two side plates are arranged on the base;
the cover plate is detachably connected to the tops of the two side plates;
the two mounting shaft sleeves are respectively penetrated and fixedly connected to the two side plates and are hollow;
the two coaxial connectors are respectively arranged at one side end of the two mounting shaft sleeves which are far away from each other;
the coaxial conductive inner core is arranged between the two side plates, and two ends of the coaxial conductive inner core respectively penetrate through the two mounting shaft sleeves and are respectively connected to the inner conductors of the two coaxial connectors;
during calibration, the coaxial conductive inner core is sleeved with the current injection probe.
According to the utility model discloses an embodiment, the diameter size at coaxial electrically conductive inner core both ends gradually to the coaxial joint inner conductor reduces the transition.
According to the utility model discloses an embodiment, coaxial electrically conductive inner core both ends form to the coaxial joint inner conductor taper gradually reduces.
According to the utility model discloses an embodiment, the well kenozooecium of installation axle sleeve with coaxial electrically conductive inner core both ends assorted toper.
According to the utility model discloses an embodiment, the apron with be equipped with spring catch between the curb plate.
According to the utility model discloses an embodiment, the curb plate top is equipped with the locating hole, the apron is close to a terminal surface on curb plate top is equipped with set screw, installs will during the apron set screw locates the locating hole is in order to realize the installation location.
According to the utility model discloses an embodiment, including two location axle sleeves, locate two respectively the curb plate is a side that is close to mutually, location axle sleeve is located coaxial electrically conductive inner core just is equipped with the location step, during the calibration current injection probe cover is located two location axle sleeve just support by in location step.
According to the utility model discloses an embodiment, coaxial electrically conductive inner core is the brass axle.
According to the utility model discloses an embodiment, coaxial joint is N type and connects.
The utility model discloses owing to adopt above technical scheme, make it compare with prior art and have following advantage and positive effect:
(1) the embodiment of the utility model provides an in set up base, two curb plates, apron, two installation axle sleeves, two coaxial joints and coaxial electrically conductive inner core, during the calibration, only need open the apron and locate coaxial electrically conductive inner core with current injection probe cover, can realize the calibration to current injection probe, it is very convenient.
(2) The embodiment of the utility model provides an in the diameter size at coaxial electrically conductive inner core both ends reduce the transition to the coaxial joint inner conductor gradually for can offset because the ladder electric capacity that coaxial electrically conductive inner core and coaxial joint inner conductor diameter nonconformity produced, make the calibration result more accurate.
(3) The embodiment of the utility model provides an in be equipped with two location axle sleeves, current injection probe cover locates two location axle sleeves and supports and lean on in location step during the calibration, through two location axle sleeves fixed current injection probes, makes it can keep coaxial with coaxial electrically conductive inner core, makes the calibration result more accurate.
Drawings
The following detailed description of embodiments of the present invention is provided with reference to the accompanying drawings, in which:
fig. 1 is a front partial sectional view of a calibration jig for a current injection probe according to the present invention;
fig. 2 is a top partial cross-sectional view of a current injection probe calibration fixture of the present invention;
fig. 3 is a side view of a current injection probe calibration fixture of the present invention;
fig. 4 is a side sectional view of the calibration fixture for current injection probe of the present invention.
Description of reference numerals:
1: a base plate; 2: a support plate; 3: a side plate; 4: a cover plate; 5: installing a shaft sleeve; 6: a coaxial joint; 7: a coaxial conductive inner core; 8: a current injection probe; 9: a spring lock catch; 10: a set screw; 11: and positioning the shaft sleeve.
Detailed Description
The present invention will be described in further detail with reference to the following drawings and specific embodiments. The advantages and features of the present invention will become more fully apparent from the following description and appended claims. It is to be noted that the drawings are in a very simplified form and are not to be construed as precise ratios as are merely intended to facilitate and distinctly illustrate the embodiments of the present invention.
It should be noted that all the directional indicators (such as upper, lower, left, right, front and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indicator is changed accordingly.
Referring to fig. 1 to 4, the core of the present invention is to provide a calibration fixture for current injection probe, which comprises a base, two side plates 3, a cover plate 4, two mounting shaft sleeves 5, two coaxial connectors 6 and a coaxial conductive inner core 7.
The base includes bottom plate 1 and backup pad 2, and on bottom plate 1 was located to backup pad 2, two curb plates 3 passed through the bolt and installed in backup pad 2. Apron 4 can be dismantled and connect in the top of two curb plates 3, realizes dismantling of apron 4 and two curb plates 3 through four spring catch 9 in this embodiment and is connected, and spring catch 9 locates between apron 4 and the curb plate 3, and every curb plate 3 all and apron 4 between be equipped with two spring catch 9.
The top end of one side plate 3 is provided with a positioning hole, one end face, close to the top end of the side plate 3, of the cover plate 4 is provided with a positioning screw 10, and the positioning screw 10 is arranged in the positioning hole to realize mounting and positioning when the cover plate 4 is mounted, so that the cover plate 4 is mounted more conveniently.
Two installation axle sleeves 5 wear to establish respectively and link firmly in two curb plates 3, and installation axle sleeve 5 cavity, installation axle sleeve 5 still is equipped with the flange, installs in curb plate 3 through flange and bolt. Two coaxial connectors 6 are respectively arranged at one side end of two mounting shaft sleeves 5 far away from each other, and the axes of two coaxial connectors 6 are collinear, and coaxial connectors 6 are N-shaped connectors in this embodiment.
The coaxial conductive inner core 7 is arranged between the two side plates 3, two ends of the coaxial conductive inner core 7 are respectively penetrated in the two mounting shaft sleeves 5 and are respectively connected to the inner conductors of the two coaxial connectors 6, and the coaxial conductive inner core 7 is collinear with the axes of the two coaxial connectors 6. The coaxial conductive inner core 7 in this embodiment is a brass shaft.
The diameters of the two ends of the coaxial conductive inner core 7 are gradually reduced and transited to the inner conductor of the coaxial connector 6, and a taper shape gradually reduced to the inner conductor of the coaxial connector 6 is formed. The hollow part of the mounting shaft sleeve 5 is conical and is matched with the two ends of the coaxial conductive inner core 7. The diameters of the two ends of the coaxial conductive inner core 7 are gradually reduced and transited to the inner conductor of the coaxial connector 6, so that the step capacitance generated by the inconsistent diameters of the coaxial conductive inner core 7 and the inner conductor of the coaxial connector 6 can be offset, and the calibration result is more accurate. This causes large reflections because of the step capacitance created by the non-uniform diameters of the coaxial conductive core 7 and the inner conductor of the coaxial contact 6.
Further, still include two location axle sleeves 11, locate two curb plates 3 side that are close to each other respectively, location axle sleeve 11 is equipped with the flange, installs location axle sleeve 11 in curb plate 3 through flange and bolt. The coaxial conductive inner core 7 is located to the 11 covers of location axle sleeve and is equipped with the location step, and two location axle sleeves 11 are located and are leaned on in the location step to current injection probe 8 covers during the calibration for can fix current injection probe 8 through two location axle sleeves 11, prevent that it from drooping oppression coaxial conductive inner core 7, and can make it keep coaxial with coaxial conductive inner core 7, make the calibration result more accurate.
During calibration, the cover plate 4 is opened to enable the current injection probe 8 to be sleeved on the coaxial conductive inner core 7 and the two positioning shaft sleeves 11, so that the current injection probe 8 can be calibrated very conveniently. In the calibration process, the current injection probe 8 introduces current to the coaxial conductive inner core 7, and the coaxial conductive inner core 7 transmits the coupled signals to the coaxial connectors 6 on the two sides.
The utility model discloses a current injection probe calibration anchor clamps can be used to the calibration of current injection probe EZ-17, and the calibration process is very convenient quick.
The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments. Even if various changes are made to the present invention, the changes are still within the scope of the present invention if they fall within the scope of the claims and their equivalents.
Claims (9)
1. A current injection probe calibration fixture, comprising:
a base;
the two side plates are arranged on the base;
the cover plate is detachably connected to the tops of the two side plates;
the two mounting shaft sleeves are respectively penetrated and fixedly connected to the two side plates and are hollow;
the two coaxial connectors are respectively arranged at one side end of the two mounting shaft sleeves which are far away from each other;
the coaxial conductive inner core is arranged between the two side plates, and two ends of the coaxial conductive inner core respectively penetrate through the two mounting shaft sleeves and are respectively connected to the inner conductors of the two coaxial connectors;
during calibration, the coaxial conductive inner core is sleeved with the current injection probe.
2. The current injection probe calibration jig of claim 1, wherein the diameter of the ends of the coaxial conductive inner core gradually decreases in size in transition to the coaxial joint inner conductor.
3. The current injection probe calibration jig of claim 2, wherein the coaxial conductive inner core is tapered at both ends to taper towards the coaxial joint inner conductor.
4. The current injection probe calibration jig of claim 3, wherein the hollow portion of the mounting sleeve is tapered to match the two ends of the coaxial conductive core.
5. The current injection probe calibration jig of claim 1, wherein a spring lock is provided between the cover plate and the side plate.
6. The current injection probe calibration jig according to claim 1, wherein the top end of the side plate is provided with a positioning hole, one end surface of the cover plate close to the top end of the side plate is provided with a positioning screw, and the positioning screw is arranged in the positioning hole to realize mounting and positioning when the cover plate is mounted.
7. The current injection probe calibration jig according to claim 1, comprising two positioning bosses respectively provided on a side surface of the two side plates which are close to each other, wherein the positioning bosses are provided on the coaxial conductive inner core and have positioning steps, and the current injection probe is provided on the two positioning bosses and abuts against the positioning steps during calibration.
8. The current injection probe calibration fixture of claim 1, wherein the coaxial conductive inner core is a brass shaft.
9. The current injection probe calibration jig of claim 1, wherein the coaxial connector is an N-type connector.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120736463.XU CN215180333U (en) | 2021-04-12 | 2021-04-12 | Current injection probe calibration fixture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120736463.XU CN215180333U (en) | 2021-04-12 | 2021-04-12 | Current injection probe calibration fixture |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215180333U true CN215180333U (en) | 2021-12-14 |
Family
ID=79356455
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120736463.XU Expired - Fee Related CN215180333U (en) | 2021-04-12 | 2021-04-12 | Current injection probe calibration fixture |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215180333U (en) |
-
2021
- 2021-04-12 CN CN202120736463.XU patent/CN215180333U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20211214 |