CN108267641B - TDR testing device for wire harness - Google Patents
TDR testing device for wire harness Download PDFInfo
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- CN108267641B CN108267641B CN201810384268.8A CN201810384268A CN108267641B CN 108267641 B CN108267641 B CN 108267641B CN 201810384268 A CN201810384268 A CN 201810384268A CN 108267641 B CN108267641 B CN 108267641B
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- tdr
- clamping part
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- 238000012360 testing method Methods 0.000 title claims abstract description 114
- 230000005540 biological transmission Effects 0.000 claims description 9
- 230000003068 static effect Effects 0.000 abstract description 19
- 230000005611 electricity Effects 0.000 abstract description 17
- 239000004020 conductor Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000002310 reflectometry Methods 0.000 description 2
- 238000005070 sampling Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 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
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R27/00—Arrangements for measuring resistance, reactance, impedance, or electric characteristics derived therefrom
- G01R27/02—Measuring real or complex resistance, reactance, impedance, or other two-pole characteristics derived therefrom, e.g. time constant
- G01R27/14—Measuring resistance by measuring current or voltage obtained from a reference source
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
Abstract
The invention discloses a TDR test device for a wire harness, which is characterized in that a TDR tester is assembled on a test platform, the TDR tester is connected with an anode test wire and a cathode test wire, the anode test wire and the cathode test wire are both connected with test connectors, an electrostatic shielding box is also assembled on the test platform, a wire harness clamping mechanism is assembled in the electrostatic shielding box, the wire harness clamping mechanism comprises a lower clamping part, a first groove is formed in the top of the lower clamping part, the lower clamping part is hinged with an upper clamping part through a first rotating shaft, a second groove is formed in the bottom of the upper clamping part, a clamping opening for clamping the wire harness is formed by the first groove and the second groove, a tension spring groove is formed in the bottom of the upper clamping part, and a large amount of static electricity is generated by personnel nearby the test platform and the movement of the wire harness to be tested, and the problem that the static electricity affects the test result and causes inaccurate test result is solved.
Description
Technical Field
The invention relates to the technical field of teaching aids, in particular to a TDR (time domain reflectometer) testing device for a wire harness.
Background
TDR (Time-Domain Reflectometry), a Time domain reflectometry technique, involves generating a Time step voltage that propagates along a transmission line, detecting reflections from the impedance with an oscilloscope, measuring the input voltage to reflected voltage ratio, and thereby calculating a discontinuous impedance.
The working principle is that a signal is transmitted in a certain transmission path, when impedance change occurs in the transmission path, a part of the signal is reflected, the other part of the signal is transmitted continuously along the transmission path, the voltage amplitude of a transmitting wave is measured during TDR, so that the change of the impedance is calculated, and meanwhile, the position of the impedance change point in the transmission path can be calculated as long as the time value from the reflection point to the transmitting point is measured.
When testing is performed, a large amount of static electricity is generated by personnel nearby the test platform and the movement of the wire harness to be tested, and the static electricity can influence the test result, so that the test result is inaccurate.
The existing TDR test device usually adopts an electrostatic protection circuit arranged in a test circuit, the electrostatic protection circuit can effectively reduce the occurrence of high-voltage static electricity, but still can generate partial static charges, the charges which cannot be completely released are easy to accumulate, so that the condition of EOS overstrain damage is generated, and a low-voltage EOS input TDR sampling module which is repeated for a plurality of times can damage the TDR sampling module, so that the need for finding a device capable of realizing the functions of the test device is urgent
A TDR test device for a wire harness that shields static electricity or prevents static electricity from being generated.
Disclosure of Invention
Aiming at the defects of the prior art, the invention aims to provide a TDR testing device for a wire harness, which can realize the functions of fixing the wire harness to be tested to prevent static electricity from generating and shielding external static electricity.
In order to achieve the above purpose, the present invention provides the following technical solutions: the TDR testing device for the wire harness comprises a testing platform, wherein a TDR tester is fixedly assembled on the testing platform, the TDR tester is fixedly connected with a positive electrode testing wire and a negative electrode testing wire, the positive electrode testing wire and the negative electrode testing wire are fixedly connected with testing connectors, an electrostatic shielding box is fixedly assembled on the testing platform, and a wire harness clamping mechanism is fixedly assembled in the electrostatic shielding box;
the wire harness clamping mechanism comprises a lower clamping part, a first groove is formed in the top of the lower clamping part, a first hinge seat is fixedly assembled on the lower clamping part, a first rotating shaft is rotatably assembled on the first hinge seat, a second hinge seat is rotatably assembled on the first rotating shaft, an upper clamping part is fixedly assembled on the second hinge seat, a second groove matched with the first groove is formed in the bottom of the upper clamping part, a clamping opening for clamping a wire harness is formed in the first groove and the second groove, a tension spring groove is further formed in the bottom of the upper clamping part, a tension spring is arranged in the tension spring groove, one end of the tension spring is fixedly connected with the bottom of the tension spring groove, and the other end of the tension spring is fixedly connected with the top of the lower clamping part.
Further, the electrostatic shielding box comprises a box body and a box cover, wherein a third hinge seat is fixedly assembled on the box body, a second rotating shaft is rotatably assembled on the third hinge seat, a fourth hinge seat is rotatably connected with the second rotating shaft, the fourth hinge seat is fixedly connected with the box cover, and the electrostatic shielding box is further provided with a box cover locking mechanism.
Further, case lid locking mechanism includes pressure spring, pull rod, box fixed mounting has first barrel, first barrel sliding fit has the slider, pull rod one end and slider fixed connection, the pull rod runs through first barrel bottom, pull rod other end fixed mounting has the handle, pressure spring one end and slider bottom fixed connection, the pressure spring other end and first barrel bottom fixed connection, fixed mounting has the second barrel with slider matched with on the case lid, slider and second barrel sliding connection.
Further, the first wire harness connector fixing groove is formed in the top of the box body, the second wire harness connector fixing groove matched with the first wire harness connector fixing groove is formed in the bottom of the box cover, and the first wire harness connector fixing groove and the second wire harness connector fixing groove form a clamping opening for clamping a wire harness connector.
Further, the outer surface of the electrostatic shielding box is fixedly provided with a grounding wire.
The beneficial effects of the invention are as follows:
1. according to the invention, the TDR tester is fixedly assembled on the test platform, the TDR tester is fixedly connected with the positive electrode test wire and the negative electrode test wire, the positive electrode test wire and the negative electrode test wire are fixedly connected with the test connectors, the electrostatic shielding box is fixedly assembled on the test platform, and the wire harness clamping mechanism is fixedly assembled in the electrostatic shielding box, so that the problems that a large amount of static electricity is generated by personnel nearby the test platform and the movement of the wire harness to be tested, the static electricity affects the test result, and the test result is inaccurate are solved.
2. According to the invention, the first groove is formed in the top of the lower clamping part, the lower clamping part is hinged with the upper clamping part through the first rotating shaft, the bottom of the upper clamping part is provided with the second groove matched with the first groove, the bottom of the upper clamping part is also provided with the tension spring groove, the tension spring is arranged in the tension spring groove, one end of the tension spring is fixedly connected with the bottom of the tension spring groove, the other end of the tension spring is fixedly connected with the top of the lower clamping part, the fixation of a wire harness is realized, static electricity generated by the movement of the wire harness is avoided, and the test result is influenced.
3. According to the invention, the box body is hinged with the box cover through the second rotating shaft, and the electrostatic shielding box is provided with the box cover locking mechanism, so that a tester can conveniently open the box body to clamp the wire harness.
4. According to the invention, the first wire harness connector fixing groove is formed in the top of the box body, and the second wire harness connector fixing groove matched with the first wire harness connector fixing groove is formed in the bottom of the box cover, so that the wire harness connector is fixed, on one hand, the wire harness connector and the test connector are conveniently inserted, on the other hand, the test wire is fixed, and static electricity generated by floating of the test wire is avoided, and the test result is influenced.
5. According to the invention, the grounding wire is fixedly arranged on the outer surface of the electrostatic shielding box, so that electrostatic charge on the electrostatic shielding box can be effectively conducted to the ground, and the test result is prevented from being influenced by the electrostatic charge.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a schematic view of the structure of the wire harness clamping mechanism and the cover locking mechanism of the present invention;
FIG. 3 is an enlarged view of a portion of FIG. 2 at A;
FIG. 4 is a partial enlarged view at B in FIG. 2;
fig. 5 is a schematic view showing the structure of the first wire harness connector fixing groove and the second wire harness connector fixing groove according to the present invention.
Reference numerals illustrate: a test platform 1; a TDR tester 2; a positive electrode test line 3 and a negative electrode test line 4; a test joint 5; an electrostatic shielding case 6; a lower clamping part 7; a first groove 8; a first hinge seat 9; a first rotation shaft 10; a second hinge seat 11; an upper clamping portion 12; a second groove 13; a tension spring groove 14; a tension spring 15; a case 16; a cover 17; a third hinge base 18; a second rotation shaft 19; a fourth hinge base 20; a compression spring 21; a pull rod 22; a first cylinder 23; a slider 24; a handle 25; a second cylinder 26; a first harness connector fixing groove 27; a second harness splice securing slot 28; and a ground line 29.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1-5, which are schematic structural diagrams of the present invention, the present invention provides a technical solution: the utility model provides a TDR testing arrangement for pencil, includes test platform 1, and test platform 1 is last to be equipped with TDR tester 2, and TDR tester 2 fixedly connected with positive pole test line 3 and negative pole test line 4, positive pole test line 3 and negative pole test line 4 all fixedly connected with test joint 5, and test platform 1 is last to still fixedly equipped with electrostatic shielding case 6, and electrostatic shielding case 6 internal fixation is equipped with pencil fixture.
During the wire harness test, wire harness connectors at two ends of the wire harness are respectively connected with the positive electrode test line 3 and the negative electrode test line 4.
The electrostatic shielding box 6 is entirely made of a metal conductor such as steel or copper, and electrostatic charges cannot enter a container made of a conductive material or a conductive layer, so that the electrostatic shielding box 6 is provided to effectively shield electrostatic charges from the outside.
The TDR tester 2 specifically includes:
a predetermined signal generator for generating a test signal meeting the requirements of strong autocorrelation and weak cross correlation and inputting the test signal into the TDR tester 2.
The time domain reflection test equipment is used for sending the test signal generated by the preset signal generator and receiving a signal returned reversely by the impedance point in the transmission line, wherein the returned signal is the superposition of the reflected signal of the test signal and the test signal.
The cross-correlation operation processing module is used for carrying out cross-correlation operation processing on the returned signal and the test signal according to the return signal received by the TDR tester 2, obtaining a component of the separated test signal and a component of the reflected signal according to the cross-correlation operation processing result, obtaining a reflected signal returned by the transmission line, and obtaining a time domain reflection test result.
The predetermined signal generator includes a random signal generator and a band-pass filter, and the random signal generated by the random signal generator is band-limited by the band-pass filter and output as a test signal.
The predetermined signal generator further comprises a frequency generator and a frequency hopping pattern control module, the frequency generator generates signals with set frequencies, and the signals select specific frequency signals from the signals to serve as test signals under the control of the frequency hopping pattern control module according to time information.
The predetermined signal generator further comprises a frequency modulator, and the frequency modulator is used for performing frequency modulation processing according to the time function output by the frequency modulation rule module to obtain a corresponding frequency modulation signal which is used as a test signal.
The wire harness clamping mechanism comprises a lower clamping part 7, a first groove 8 is formed in the top of the lower clamping part 7, a first hinge seat 9 is fixedly assembled on the lower clamping part 7, a first rotating shaft 10 is rotatably assembled on the first hinge seat 9, a second hinge seat 11 is rotatably assembled on the first rotating shaft 10, an upper clamping part 12 is fixedly assembled on the second hinge seat 11, a second groove 13 matched with the first groove 8 is formed in the bottom of the upper clamping part 12, a clamping opening for clamping the wire harness is formed in the first groove 8 and the second groove 13, a tension spring groove 14 is further formed in the bottom of the upper clamping part 12, a tension spring 15 is arranged in the tension spring groove 14, one end of the tension spring 15 is fixedly connected with the bottom of the tension spring groove 14, and the other end of the tension spring 15 is fixedly connected with the top of the lower clamping part 7.
The tension spring 15 provides a clamping force between the first groove 8 and the second groove 13, so that the wire harness is fixed in a nip formed by the first groove 8 and the second groove 13 for clamping the wire harness.
Specifically, the electrostatic shielding box 6 includes a box 16 and a box cover 17, the box 16 is fixedly provided with a third hinge seat 18, the third hinge seat 18 is rotatably provided with a second rotating shaft 19, the second rotating shaft 19 is rotatably connected with a fourth hinge seat 20, the fourth hinge seat 20 is fixedly connected with the box cover 17, and the electrostatic shielding box 6 is further provided with a box cover locking mechanism.
The box 16 is hinged with the box cover 17 through a second rotating shaft 19, and the electrostatic shielding box 6 is provided with a box cover locking mechanism, so that a tester can conveniently open the box 16 to clamp the wire harness.
Specifically, the case cover locking mechanism comprises a pressure spring 21 and a pull rod 22, wherein a first cylinder 23 is fixedly assembled on the case body 16, a sliding block 24 is slidably assembled on the first cylinder 23, one end of the pull rod 22 is fixedly connected with the sliding block 24, the pull rod 22 penetrates through the bottom of the first cylinder 23, a handle 25 is fixedly assembled at the other end of the pull rod 22, one end of the pressure spring 21 is fixedly connected with the bottom of the sliding block 24, the other end of the pressure spring 21 is fixedly connected with the bottom of the first cylinder 23, a second cylinder 26 matched with the sliding block 24 is fixedly assembled on the case cover 17, and the sliding block 24 is slidably connected with the second cylinder 26.
When the electrostatic shielding box is used, the handle 25 is pressed downwards, the sliding block 24 slides downwards along the inner wall of the second cylinder 26, and when the sliding block is separated from the second cylinder 26, the box cover 17 can be rotated anticlockwise by taking the second rotating shaft 19 as the rotation center, so that the electrostatic shielding box 6 is opened, and the clamping work of the wire harness is performed.
Specifically, the top of the case 16 is provided with a first wire harness connector fixing groove 27, the bottom of the case cover 17 is provided with a second wire harness connector fixing groove 28 which is matched with the first wire harness connector fixing groove 27, and the first wire harness connector fixing groove 27 and the second wire harness connector fixing groove 28 form a clamping opening for clamping a wire harness connector.
The clamping opening formed by the first wire harness connector fixing groove 27 and the second wire harness connector fixing groove 28 and used for clamping the wire harness connector is used for fixing the wire harness connector, so that the test connector 5 spliced with the wire harness connector is fixed, static electricity generated due to movement of the wire harness is further avoided, meanwhile, the wire harness connector and the test connector 5 are conveniently spliced, the test wire is further fixed, static electricity generated due to floating of the test wire is avoided, and the test result is influenced.
Specifically, the grounding wire 29 is fixedly arranged on the outer surface of the electrostatic shielding box 6, so that electrostatic charges on the electrostatic shielding box 6 can be effectively conducted to the ground, and the test result is prevented from being influenced by the static charges.
When the wire harness fixing device works, firstly, the handle 25 is pressed downwards, the handle 25 drives the slide block 24 to slide downwards, when the slide block 24 is separated from the second cylinder 26, the box cover 17 is turned anticlockwise, the electrostatic shielding box 6 is opened, the handle 25 is loosened, then the upper clamping part 12 is turned anticlockwise, the wire harness is put into the first groove 8, the wire harness connector is placed in the first wire harness connector fixing groove 27, the upper clamping part 12 is loosened, the tension spring 15 drives the upper clamping part 12 to return, the clamping force between the first groove 8 and the second groove 13 is provided, the wire harness is fixed in a clamping opening formed by the first groove 8 and the second groove 13 for clamping the wire harness, the handle 25 is pressed downwards again, the box cover 17 is turned clockwise, the electrostatic shielding box 6 is closed, meanwhile, the clamping opening formed by the first wire harness connector fixing groove 27 and the second wire harness connector fixing groove 28 is used for clamping the wire harness connector, the wire harness connector is fixed, the test connector 5 which is spliced with the wire harness connector is fixed, the handle 25 is loosened, the pressure spring 21 drives the slide block 24 to be inserted into the second cylinder 26, and the box cover 17 is locked, and the fixing work of the wire harness is completed.
According to the invention, the TDR tester 2 is fixedly assembled on the test platform 1, the TDR tester 2 is fixedly connected with the positive electrode test wire 3 and the negative electrode test wire 4, the positive electrode test wire 3 and the negative electrode test wire 4 are fixedly connected with the test connector 5, the electrostatic shielding box 6 is fixedly assembled on the test platform 1, and the wire harness clamping mechanism is fixedly assembled in the electrostatic shielding box 6, so that the problems that a large amount of static electricity is generated by personnel nearby the test platform 1 and the movement of the wire harness to be tested, the static electricity affects the test result, and the test result is inaccurate are solved.
Claims (5)
1. A TDR testing arrangement for pencil, its characterized in that: the test platform is fixedly provided with a TDR tester, the TDR tester is fixedly connected with an anode test wire and a cathode test wire, the anode test wire and the cathode test wire are fixedly connected with test connectors, the test platform is also fixedly provided with an electrostatic shielding box, and a wire harness clamping mechanism is fixedly arranged in the electrostatic shielding box;
the wire harness clamping mechanism comprises a lower clamping part, a first groove is formed in the top of the lower clamping part, a first hinge seat is fixedly assembled on the lower clamping part, a first rotating shaft is rotatably assembled on the first hinge seat, a second hinge seat is rotatably assembled on the first rotating shaft, an upper clamping part is fixedly assembled on the second hinge seat, a second groove matched with the first groove is formed in the bottom of the upper clamping part, a clamping opening for clamping a wire harness is formed in the first groove and the second groove, a tension spring groove is further formed in the bottom of the upper clamping part, a tension spring is arranged in the tension spring groove, one end of the tension spring is fixedly connected with the bottom of the tension spring groove, and the other end of the tension spring is fixedly connected with the top of the lower clamping part;
the TDR tester specifically comprises:
a predetermined signal generator for generating a test signal meeting the requirements of strong autocorrelation and weak cross correlation and inputting the test signal into a TDR tester;
the time domain reflection test equipment is used for sending the test signal generated by the preset signal generator and receiving a signal returned reversely by the impedance point in the transmission line, wherein the returned signal is the superposition of the reflected signal of the test signal and the test signal;
the cross-correlation operation processing module is used for carrying out cross-correlation operation processing on the returned signal and the test signal according to the return signal received by the TDR tester, obtaining a component of the separated test signal and a component of the reflected signal according to the cross-correlation operation processing result, obtaining the reflected signal returned by the transmission line, and obtaining a time domain reflection test result.
2. A TDR test device for wire harness according to claim 1, wherein: the electrostatic shielding box comprises a box body and a box cover, wherein a third hinge seat is fixedly assembled on the box body, a second rotating shaft is rotatably assembled on the third hinge seat, a fourth hinge seat is rotatably connected with the second rotating shaft, the fourth hinge seat is fixedly connected with the box cover, and the electrostatic shielding box is further provided with a box cover locking mechanism.
3. A TDR test device for wire harness according to claim 2, characterized in that: the box cover locking mechanism comprises a pressure spring and a pull rod, a first barrel is fixedly assembled on the box body, a sliding block is assembled in the first barrel in a sliding mode, one end of the pull rod is fixedly connected with the sliding block, the pull rod penetrates through the bottom of the first barrel, a handle is fixedly assembled at the other end of the pull rod, one end of the pressure spring is fixedly connected with the bottom of the sliding block, the other end of the pressure spring is fixedly connected with the bottom of the first barrel, a second barrel matched with the sliding block is fixedly assembled on the box cover, and the sliding block is slidably connected with the second barrel.
4. A TDR test device for wire harness according to claim 3, wherein: the box top has been seted up first pencil and has been connected the fixed slot, the case lid bottom has been seted up and has been connected the fixed slot with first pencil joint matched with second pencil, and first pencil connects the fixed slot and the fixed slot is connected with the second pencil and is formed the clamp mouth that is used for centre gripping pencil to connect.
5. A TDR test device for wire harness as claimed in claim 4, wherein: the outer surface of the electrostatic shielding box is fixedly provided with a grounding wire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810384268.8A CN108267641B (en) | 2018-04-26 | 2018-04-26 | TDR testing device for wire harness |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810384268.8A CN108267641B (en) | 2018-04-26 | 2018-04-26 | TDR testing device for wire harness |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108267641A CN108267641A (en) | 2018-07-10 |
| CN108267641B true CN108267641B (en) | 2023-11-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810384268.8A Active CN108267641B (en) | 2018-04-26 | 2018-04-26 | TDR testing device for wire harness |
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| Country | Link |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW482302U (en) * | 2000-08-25 | 2002-04-01 | Good Will Instr Co Ltd | Clamping tool for testing |
| CN204422580U (en) * | 2014-12-29 | 2015-06-24 | 上海大郡动力控制技术有限公司 | Protecting component for electrostatic discharge test fixture |
| JP2016058222A (en) * | 2014-09-09 | 2016-04-21 | アンリツ株式会社 | Static elimination device and static elimination method |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7545152B2 (en) * | 2006-01-11 | 2009-06-09 | Thermo Fisher Scientific, Inc. | Transmission line pulse measurement system for measuring the response of a device under test |
| US10012686B2 (en) * | 2016-08-15 | 2018-07-03 | Tektronix, Inc. | High frequency time domain reflectometry probing system |
-
2018
- 2018-04-26 CN CN201810384268.8A patent/CN108267641B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW482302U (en) * | 2000-08-25 | 2002-04-01 | Good Will Instr Co Ltd | Clamping tool for testing |
| JP2016058222A (en) * | 2014-09-09 | 2016-04-21 | アンリツ株式会社 | Static elimination device and static elimination method |
| CN204422580U (en) * | 2014-12-29 | 2015-06-24 | 上海大郡动力控制技术有限公司 | Protecting component for electrostatic discharge test fixture |
Non-Patent Citations (2)
| Title |
|---|
| Extraction of time dependent data from time domain reflection transmission line pulse measurements [ESD protection design];Robert.A. Ashton;IEEE;第239-244页 * |
| 防静电地面的防静电电阻测量不确定度评定;葛欣宏等;电子测量技术;第36卷(第2期);第16-18页+42页 * |
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| CN108267641A (en) | 2018-07-10 |
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Effective date of registration: 20240409 Address after: No. 9 Shunyi Road, Economic Development Zone, Tancheng County, Linyi City, Shandong Province, 276100 Patentee after: Shandong Huapeng Information Technology Co.,Ltd. Country or region after: China Address before: 276000 No.23, Tancheng Road, Tancheng County, Linyi City, Shandong Province Patentee before: TANCHENG HONGRUI ELECTRONICS CO.,LTD. Country or region before: China |
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