CN111999638B - Telescopic test probe of integrated calibrating device - Google Patents

Telescopic test probe of integrated calibrating device Download PDF

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Publication number
CN111999638B
CN111999638B CN202010695241.8A CN202010695241A CN111999638B CN 111999638 B CN111999638 B CN 111999638B CN 202010695241 A CN202010695241 A CN 202010695241A CN 111999638 B CN111999638 B CN 111999638B
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China
Prior art keywords
clamping plate
probe
upper clamping
positioning cylinder
test probe
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CN202010695241.8A
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Chinese (zh)
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CN111999638A (en
Inventor
刘安阳
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Suzhou Inspur Intelligent Technology Co Ltd
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Suzhou Inspur Intelligent Technology Co Ltd
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Priority to CN202010695241.8A priority Critical patent/CN111999638B/en
Publication of CN111999638A publication Critical patent/CN111999638A/en
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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/28Testing of electronic circuits, e.g. by signal tracer
    • G01R31/3167Testing of combined analog and digital circuits
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R1/00Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
    • G01R1/02General constructional details
    • G01R1/04Housings; Supporting members; Arrangements of terminals
    • G01R1/0408Test fixtures or contact fields; Connectors or connecting adaptors; Test clips; Test sockets
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R1/00Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
    • G01R1/02General constructional details
    • G01R1/06Measuring leads; Measuring probes
    • G01R1/067Measuring probes

Abstract

The invention discloses a telescopic test probe of an integrated calibration device, and relates to the technical field of test equipment. The probe comprises a main shell, wherein the front end of the main shell is hinged with two sliding sleeves, a calibration positioning cylinder is arranged in each sliding sleeve, and a probe is arranged in each calibration positioning cylinder. The main casing in be located the upper and lower both sides of a check positioning section of thick bamboo are provided with respectively and are used for pressing from both sides tight the punch holder and the lower plate of a check positioning section of thick bamboo, punch holder and lower plate structure the same, and symmetrical arrangement. The outer side surface of the upper clamping plate is provided with a pressing rod. The main shell body is provided with a limit hole matched with the pressing rod. A first spring used for blocking the upper clamping plate and the lower clamping plate to move oppositely is arranged between the upper clamping plate and the lower clamping plate. The probe saves the traditional plugging process of a calibration device, avoids damaging the probe and can also protect the probe.

Description

Telescopic test probe of integrated calibrating device
Technical Field
The invention relates to the technical field of test equipment, in particular to a test probe for testing a high-speed signal of a server.
Background
It is generally considered that if the frequency of the digital logic circuit reaches or exceeds 45MHZ to 50MHZ, and the circuit operating above this frequency already occupies a certain portion of the whole electronic system (for example 1/3), it is called a high-speed circuit. High speed signals are extremely important for servers, and the quality of the signals needs to be tested to ensure the quality of the servers in daily production.
When the existing test equipment is used for testing, the probes on the probe head need to be checked firstly, so that the consistency of the two probes is ensured. However, the diameter of the jack for accommodating the probe of the device for verifying the probe is larger than that of the probe, so that the position of the probe in the jack cannot be accurately limited during verification, and the situation of inaccurate verification is easy to occur. In order to improve the accuracy of the calibration, a calibration device needs to be sleeved at the front end of the probe during the calibration, and the diameter of the head of the calibration device is matched with the diameter of the jack of the calibration equipment, so that the probe is physically limited, and the calibration accuracy is ensured. The probe can be damaged by long-time application, the probe is small, the probe is not easy to hold, and the damage of the probe can be accelerated by uneven exertion.
Disclosure of Invention
In order to solve the problems, the invention provides a telescopic test probe integrated with a calibration device, which directly sleeves a calibration positioning cylinder outside a probe and controls the telescopic of the calibration positioning cylinder through a telescopic device, so that the position conversion of the calibration positioning cylinder under a test state and a calibration state is realized, the traditional calibration device plugging process is omitted, the probe is prevented from being damaged, and the probe can be protected.
The technical scheme adopted by the invention for solving the technical problems is as follows:
a telescopic test probe of an integrated calibration device comprises a hollow main shell, wherein the front end of the main shell is hinged with two sliding sleeves, a calibration positioning cylinder capable of axially sliding along the sliding sleeves is arranged in each sliding sleeve, and a probe is arranged in each calibration positioning cylinder;
an upper clamping plate and a lower clamping plate for clamping the calibration positioning cylinder are respectively arranged on the upper side and the lower side of the calibration positioning cylinder in the main shell, and the upper clamping plate and the lower clamping plate have the same structure and are symmetrically arranged;
a pressing rod is arranged on the outer side surface of the upper clamping plate, and the pressing rod sequentially comprises a first shaft section and a second shaft section with diameters sequentially reduced from bottom to top;
the main shell is provided with a limiting hole matched with the pressing rod;
a first spring used for blocking the upper clamping plate and the lower clamping plate to move oppositely is arranged between the upper clamping plate and the lower clamping plate.
Furthermore, the limiting hole is in a shape of a gourd hole, the diameter of the rear end of the limiting hole is matched with the first shaft section, and the diameter of the front end of the limiting hole is matched with the second shaft section.
Furthermore, the inner side surfaces of the upper clamping plate and the lower clamping plate are respectively provided with a first groove for accommodating the first spring, and two first springs are arranged between the upper clamping plate and the lower clamping plate.
Furthermore, the upper clamping plate is provided with a concave part matched with the calibration positioning cylinder.
Furthermore, two pressing rods are arranged on the outer side surface of the upper clamping plate, and a connecting transverse plate is arranged between the two pressing rods.
Further, the rear end of probe is fixed and is provided with the fixed block, be provided with the guiding axle on the last and/or the downside of fixed block, the main casing on be provided with guiding groove that guiding axle cooperatees, the main casing in be provided with can for main casing gliding drive shaft around, and two the fixed block respectively through the connecting rod with the drive shaft link to each other.
Furthermore, the fixed block is provided with two connecting rods, and the two connecting rods connected with the same fixed block are respectively positioned at the upper side and the lower side of the fixed block.
Further, the outside cover of the main casing body is equipped with an interval adjustment section of thick bamboo, the tip of drive shaft passes the lateral wall of the main casing body and extends to the outside of the main casing body, just be provided with on the interval adjustment section of thick bamboo and be used for holding the through-hole or the second recess of drive shaft tip, the fixed screw rod that is provided with on the rear end of the main casing body, just the rear end of screw rod passes the back lateral wall of an interval adjustment section of thick bamboo extends to the outside of an interval adjustment section of thick bamboo, the screw rod on be located the inside and outside both sides of an interval adjustment section of thick bamboo are provided with second spring and gland nut respectively.
Furthermore, scale marks are arranged on the outer side face of the main shell.
The invention has the beneficial effects that:
1. the probe directly sleeves a calibration positioning cylinder outside the probe, and controls the calibration positioning cylinder to stretch out and draw back through a telescopic device, so that the position conversion of the calibration positioning cylinder under a test state and a calibration state is realized, the traditional calibration device plugging process is omitted, the probe is prevented from being damaged, and the probe with a thinner diameter can be protected.
2. The distance between probe tips in the probe can be adjusted according to the distance between the test points, and the adjustment process is simple and convenient to operate.
3. The probe does not need repeated plugging and unplugging calibration equipment in the using process, and the testing efficiency can be effectively improved.
Drawings
FIG. 1 is a schematic perspective view of a test probe;
FIG. 2 is a top view of a test probe;
FIG. 3 is a cross-sectional view A-A of FIG. 2;
FIG. 4 is a cross-sectional view taken along line B-B of FIG. 2;
FIG. 5 is a cross-sectional view taken at C-C of FIG. 2;
FIG. 6 is an exploded view of a test probe;
FIG. 7 is an enlarged view of portion A of FIG. 6;
FIG. 8 is a schematic perspective view of a spacing adjustment barrel;
FIG. 9 is a perspective view of the internal mechanism of the main housing;
FIG. 10 is a perspective view of a test probe in a calibration state;
FIG. 11 is an enlarged view of portion B of FIG. 10;
FIG. 12 is a schematic view showing the state of the clamp telescopic mechanism in the verification state;
FIG. 13 is a first state diagram of spacing adjustment of the test probes;
fig. 14 is a second state diagram of the spacing adjustment of the test probes.
In the figure: 1-a main shell, 11-an avoidance hole, 12-a limiting hole, 13-a guide groove, 14-a long round hole,
2-closing plate, 21-screw, 211-second spring, 212-compression nut,
3-a sliding sleeve, 31-a hinged shaft,
4-checking the positioning cylinder to obtain the position,
5-probe, 51-fixed block, 511-guide shaft,
61-upper plate, 611-recess, 612-pressing rod, 613-connecting cross plate, 614-first groove, 62-lower plate, 63-first spring,
7-a driving shaft is arranged at the front end of the driving shaft,
81-left connecting rod, 82-right connecting rod,
9-interval adjusting cylinder, 91-through hole.
Detailed Description
For convenience of description, a coordinate system is defined as shown in fig. 1, and the left-right direction is taken as a transverse direction, the front-back direction is taken as a longitudinal direction, and the up-down direction is taken as a vertical direction.
As shown in fig. 1 and 6, a telescopic test probe of an integrated calibration device includes a main housing 1, where the cross section of the main housing 1 is a square structure, and the whole main housing is a cylindrical structure with a closed front end and an open rear end. The rear end of the main housing 1 is provided with a closing plate 2 for closing the main housing 1.
As shown in fig. 7, the front end (i.e. the closed end) of the main casing 1 is provided with two avoiding holes 11 penetrating through the front side wall of the main casing 1 along the front-back direction, and the two avoiding holes 11 are symmetrically arranged about the vertical symmetry plane of the main casing 1. As shown in fig. 2 and 4, a sliding sleeve 3 is disposed in the avoiding hole 11, and the upper side and the lower side of the sliding sleeve 3 are respectively hinged to the main housing 1 through a hinge shaft 31. As a specific implementation mode, in this embodiment the outside of sliding sleeve 3 is personally submitted cylindricly, just articulated shaft 31 be located sliding sleeve 3's middle part along the axis direction, be provided with respectively on dodging the last side and the downside of hole 11 with articulated shaft 31 matched with hinge hole.
As shown in fig. 2 and 3, a calibration positioning cylinder 4 is disposed in the sliding sleeve 3, a front end of the calibration positioning cylinder 4 extends to the outside of the main housing 1, and a rear end of the calibration positioning cylinder 4 extends to the inside of the main housing 1. The calibration positioning cylinder 4 can slide axially along the sliding sleeve 3, and a certain degree of tension is formed between the calibration positioning cylinder 4 and the sliding sleeve 3. Due to the existence of the degree of tension, the calibration positioning cylinder 4 cannot slide along the sliding sleeve 3 under the action of self gravity, and a certain axial acting force needs to be applied to the calibration positioning cylinder 4 to make the calibration positioning cylinder 4 slide along the sliding sleeve 3.
As shown in fig. 2 and 3, a probe 5 is disposed in the calibration positioning cylinder 4, and a rear end of the probe 5 passes through the calibration positioning cylinder 4 and extends to the outside of the calibration positioning cylinder 4. As shown in fig. 6 and 9, a fixing block 51 fixedly connected to the probe 5 is disposed at a rear end of the probe 5, and the fixing block 51 is connected to the main housing 1.
And a clamping telescopic mechanism for clamping the calibration positioning cylinder 4 is arranged in the main shell 1.
As shown in fig. 6 and 9, the clamping and retracting mechanism includes an upper clamping plate 61 and a lower clamping plate 62 respectively disposed at the upper and lower sides of the calibration positioning cylinder 4, and the upper clamping plate 61 and the lower clamping plate 62 have the same structure and are symmetrically disposed. The structure will now be described in detail by way of example only with respect to the upper clamp plate 61.
The left and right ends of the inner side surface of the upper clamping plate 61 (the opposite side of the upper clamping plate 61 and the lower clamping plate 62 is the inner side) are respectively provided with a recessed part 611 which is matched with the calibration positioning cylinder 4 and has an arc-shaped cross section, that is, the diameter of the recessed part 611 is equal to the outer diameter of the calibration positioning cylinder 4. A pressing rod 612 is arranged on the outer side surface of the upper clamping plate 61 (the inner side is the opposite side of the upper clamping plate 61 and the lower clamping plate 62), the pressing rod 612 is in a step shaft shape and sequentially comprises a first shaft section and a second shaft section from bottom to top, and the diameter of the first shaft section is larger than that of the second shaft section.
Furthermore, for convenience of operation, as shown in fig. 9, two pressing rods 612 are disposed on the outer side surface of the upper clamp plate 61, a connecting transverse plate 613 is disposed between the two pressing rods 612, and the lower side surface of the connecting transverse plate 613 is fixedly connected to the upper end surface of the pressing rods 612.
As shown in fig. 5 and 9, a first spring 63 for blocking the upper clamp plate 61 and the lower clamp plate 62 from moving toward each other is disposed between the upper clamp plate 61 and the lower clamp plate 62. As a specific implementation manner, the inner side surfaces of the upper clamp plate 61 and the lower clamp plate 62 in the embodiment are respectively provided with a first groove 614 with a circular cross section for accommodating the first spring 63, the upper end of the first spring 63 abuts against the bottom surface of the first groove 614 of the upper clamp plate 61, and the lower end of the first spring 63 abuts against the bottom surface of the first groove 614 of the lower clamp plate 62. Preferably, two first springs 63 are disposed between the upper clamping plate 61 and the lower clamping plate 62, and the two first springs 63 are respectively located at the outer side of the calibration positioning barrel 4.
As shown in fig. 7, the upper side wall and the lower side wall of the main housing 1 are respectively provided with a limiting hole 12 matched with the pressing rod 612, and the limiting hole 12 is in the shape of a gourd-shaped hole with a small front end diameter and a large rear end diameter. The diameter of the large end of the limiting hole 12 is equal to that of the first shaft section, and the diameter of the small end of the limiting hole 12 is equal to that of the second shaft section. As shown in fig. 2 and 5, when the pressing rod 612 is engaged with the large end of the limiting hole 12, the first shaft section is inserted into the limiting hole 12, the upper side surface of the upper clamping plate 61 is pressed against the inner side surface of the upper side wall of the main casing 1, the lower side surface of the lower clamping plate 62 is pressed against the inner side surface of the lower side wall of the main casing 1, and at this time, the distance between the upper clamping plate 61 and the lower clamping plate 62 is greater than the diameter of the calibration positioning cylinder 4, i.e. the lower side surface of the upper clamping plate 61 is located above the calibration positioning cylinder 4, and the upper side surface of the lower clamping plate 62 is located below the calibration positioning cylinder 4. As shown in fig. 12, when the pressing rod 612 is engaged with the small end of the limiting hole 12, only the second shaft segment is inserted into the limiting hole 12, the step surface between the first shaft segment and the second shaft segment is pressed against the inner side surface of the main housing 1, and at this time, the calibration positioning cylinder 4 is pressed against the recessed portions 611 of the upper clamping plate 61 and the lower clamping plate 62.
In operation, when the calibration is required, the two pressing rods 612 are pressed simultaneously, so that the calibration positioning cylinder 4 is clamped between the upper clamping plate 61 and the lower clamping plate 62, and the first shaft section of the pressing rod 612 is retracted into the main housing 1. Then, the pressing rod 612 is pushed forward while maintaining the pressed state, at this time, the calibration positioning cylinder 4 moves forward together under the driving action of the upper clamp plate 61 and the lower clamp plate 62, and the calibration positioning cylinder 4 slides axially relative to the sliding sleeve 3 until the pressing rod 612 moves to the front end of the limiting hole 12. Since the diameter of the front end of the limiting hole 12 is smaller than that of the first shaft section, when the pressing rod 612 is released, the upper clamping plate 61 and the lower clamping plate 62 do not move outward under the action of the first spring 63, the calibration positioning cylinder 4 is still in a clamped state, and as shown in fig. 10 and 11, the front end of the probe 5 retracts into the calibration positioning cylinder 4. And then carrying out verification operation.
Further, since the distance between two points to be tested is different during the actual test, the distance between the tips of the probes 5 needs to be adjusted, so that the distance between the tips of the probes 5 coincides with the distance between the points to be tested during the test.
For this, as shown in fig. 3 and 9, the fixing block 51 is provided at upper and lower sides thereof with guide shafts 511 extending in a vertical direction, respectively, and a free end of the guide shaft 511 extends to the outside of the main housing 1 through a sidewall of the main housing 1. As shown in fig. 6, the upper and lower sidewalls of the main housing 1 are respectively provided with guide grooves 13 having an arc shape and engaged with the guide shafts 511. As shown in fig. 2 and 3, a driving shaft 7 extending in a vertical direction is disposed in the main housing 1 behind the guide groove 13, and an upper end and a lower end of the driving shaft 7 respectively extend to the outside of the main housing 1 through the side wall of the main housing 1. As shown in fig. 6, the upper side wall and the lower side wall of the main housing 1 are respectively provided with oblong holes 14 arranged in the front-rear direction to be engaged with the driving shaft 7. As shown in fig. 3 and 9, the two fixing blocks 51 are respectively connected to the driving shaft 7 through a connecting rod, one end of the connecting rod is hinged to the guide shaft 511, and the other end of the connecting rod is hinged to the driving shaft 7. For convenience of description, a link connected to the fixed block 51 positioned at the left side is defined as a left link 81, and a link connected to the fixed block 51 positioned at the right side is defined as a right link 82. In the process that the driving shaft 7 moves back and forth along the oblong hole 14, the left connecting rod 81 and the right connecting rod 82 are always symmetrical about the axis of the oblong hole 14.
Preferably, as shown in fig. 9, two connecting rods are disposed on each of the fixing blocks 51, and the two connecting rods connected to the same fixing block 51 are respectively located at the upper and lower sides of the fixing block 51.
Further, as shown in fig. 1, 2 and 6, a distance adjusting cylinder 9 capable of sliding back and forth along the main housing 1 is sleeved outside the main housing 1, and a rear end of the distance adjusting cylinder 9 is a closed end. The inner side surface of the interval adjusting cylinder 9 is matched with the outer side surface of the main shell 1. The upper side wall and the lower side wall of the distance adjusting cylinder 9 are respectively provided with a through hole 91 or a second groove for accommodating the end part of the driving shaft 7. A screw 21 extending longitudinally and backwardly is fixedly arranged on the sealing plate 2 at the rear end of the main casing 1, and the rear end of the screw 21 penetrates through the rear side wall of the interval adjusting cylinder 9 and extends to the outside of the interval adjusting cylinder 9. The screw 21 on be located the inside cover of interval adjustment section of thick bamboo 9 is equipped with second spring 211, the front end of second spring 211 support and lean on shrouding 2 on, the rear end of second spring 211 support and lean on the medial surface of the back lateral wall of interval adjustment section of thick bamboo 9. A compression nut 212 is arranged on the screw rod 21 and positioned outside the distance adjusting cylinder 9. Preferably, the compression nut 212 is a wing nut.
Furthermore, when the calibration positioning cylinder 4 is subjected to telescopic operation, the two probes 5 are in a parallel state, so that in order to facilitate the operation, scale marks are arranged on the outer side surface of the main housing 1, and when the front end surface of the distance adjusting cylinder 9 is overlapped with a certain scale mark, the two probes 5 are in a parallel state. Therefore, in the using process, the distance between the tips of the probes 5 can be directly obtained visually by observing the position of the front end surface of the distance adjusting cylinder 9.
Furthermore, except the probe 5 and the checking and positioning cylinder 4, other parts of the testing probe are made of insulating materials.

Claims (9)

1. The utility model provides an integrated calibrating device's telescopic test probe which characterized in that: the device comprises a hollow main shell, wherein the front end of the main shell is hinged with two sliding sleeves, a calibration positioning cylinder capable of axially sliding along the sliding sleeves is arranged in each sliding sleeve, and a probe is arranged in each calibration positioning cylinder;
an upper clamping plate and a lower clamping plate for clamping the calibration positioning cylinder are respectively arranged on the upper side and the lower side of the calibration positioning cylinder in the main shell, and the upper clamping plate and the lower clamping plate have the same structure and are symmetrically arranged;
a pressing rod is arranged on the outer side surface of the upper clamping plate, and the pressing rod sequentially comprises a first shaft section and a second shaft section with diameters sequentially reduced from bottom to top;
the main shell is provided with a limiting hole matched with the pressing rod;
a first spring used for blocking the upper clamping plate and the lower clamping plate to move oppositely is arranged between the upper clamping plate and the lower clamping plate.
2. The retractable test probe of an integrated calibration device of claim 1, wherein: the limiting hole is in a gourd hole shape, the diameter of the rear end of the limiting hole is matched with the first shaft section, and the diameter of the front end of the limiting hole is matched with the second shaft section.
3. The retractable test probe of an integrated calibration device of claim 1, wherein: the inner side surfaces of the upper clamping plate and the lower clamping plate are respectively provided with a first groove for containing the first spring, and two first springs are arranged between the upper clamping plate and the lower clamping plate.
4. The telescopic test probe of an integrated calibration device of claim 1, wherein: the upper clamping plate is provided with a concave part matched with the calibration positioning cylinder.
5. The retractable test probe of an integrated calibration device of claim 1, wherein: two pressing rods are arranged on the outer side surface of the upper clamping plate, and a connecting transverse plate is arranged between the two pressing rods.
6. The retractable test probe of an integrated calibration device of claim 1, wherein: the rear end of probe is fixed and is provided with the fixed block, be provided with the guiding axle on the last and/or the downside of fixed block, the main casing body on be provided with guiding axle complex guide way, the main casing body in be provided with can for main casing body around gliding drive shaft, and two the fixed block respectively through the connecting rod with the drive shaft link to each other.
7. The retractable test probe of an integrated calibration device of claim 6, wherein: the fixed block on all be provided with two connecting rods, and two connecting rods that link to each other with same fixed block are located the upper and lower both sides of this fixed block respectively.
8. The retractable test probe of an integrated calibration device of claim 6, wherein: the outside cover of the main casing body is equipped with an interval adjustment section of thick bamboo, the lateral wall that the tip of drive shaft passed the main casing body extends to the outside of the main casing body, just be provided with on the interval adjustment section of thick bamboo and be used for holding the through-hole or the second recess of drive shaft tip, the fixed screw rod that is provided with on the rear end of the main casing body, just the rear end of screw rod passes the back lateral wall of an interval adjustment section of thick bamboo extends to the outside of an interval adjustment section of thick bamboo, the screw rod on be located the inside and outside both sides of an interval adjustment section of thick bamboo are provided with second spring and gland nut respectively.
9. The retractable test probe of an integrated calibration device of claim 8, wherein: and scale marks are arranged on the outer side surface of the main shell.
CN202010695241.8A 2020-07-19 2020-07-19 Telescopic test probe of integrated calibrating device Active CN111999638B (en)

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CN202010695241.8A CN111999638B (en) 2020-07-19 2020-07-19 Telescopic test probe of integrated calibrating device

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Application Number Priority Date Filing Date Title
CN202010695241.8A CN111999638B (en) 2020-07-19 2020-07-19 Telescopic test probe of integrated calibrating device

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CN111999638A CN111999638A (en) 2020-11-27
CN111999638B true CN111999638B (en) 2022-08-02

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN200953045Y (en) * 2006-10-13 2007-09-26 环达电脑(上海)有限公司 Oscilloprobe calibrating fitting
CN201464507U (en) * 2009-07-31 2010-05-12 中芯国际集成电路制造(上海)有限公司 Probe card and metal probe
CN104215799A (en) * 2014-09-15 2014-12-17 上海克来机电自动化工程股份有限公司 Floating plug device for testing of electronic function module
CN207067220U (en) * 2017-08-04 2018-03-02 无锡水文工程地质勘察院 A kind of resistivity measurement probe fixture
CN210243705U (en) * 2019-07-08 2020-04-03 深圳市兴晨旭五金制品有限公司 Test probe with good detection performance

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN200953045Y (en) * 2006-10-13 2007-09-26 环达电脑(上海)有限公司 Oscilloprobe calibrating fitting
CN201464507U (en) * 2009-07-31 2010-05-12 中芯国际集成电路制造(上海)有限公司 Probe card and metal probe
CN104215799A (en) * 2014-09-15 2014-12-17 上海克来机电自动化工程股份有限公司 Floating plug device for testing of electronic function module
CN207067220U (en) * 2017-08-04 2018-03-02 无锡水文工程地质勘察院 A kind of resistivity measurement probe fixture
CN210243705U (en) * 2019-07-08 2020-04-03 深圳市兴晨旭五金制品有限公司 Test probe with good detection performance

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