CN103454039A - Cambered face static pressure measuring module and manufacturing method thereof - Google Patents
Cambered face static pressure measuring module and manufacturing method thereof Download PDFInfo
- Publication number
- CN103454039A CN103454039A CN2013104207995A CN201310420799A CN103454039A CN 103454039 A CN103454039 A CN 103454039A CN 2013104207995 A CN2013104207995 A CN 2013104207995A CN 201310420799 A CN201310420799 A CN 201310420799A CN 103454039 A CN103454039 A CN 103454039A
- Authority
- CN
- China
- Prior art keywords
- cambered surface
- module
- chaining pin
- hole
- static pressure
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Abstract
The invention relates to the technical field of fluid static pressure measurement, in particular to a cambered face static measuring module and a manufacturing method thereof. A cambered face static pressure measuring module comprises a cambered face module and a measuring pin, one end of the measuring pin is fixedly arranged inside the cambered face module, one side face of the cambered module is a cambered face, a hole communicated with the measuring pin is formed in the top end of the cambered face of the cambered face module, and the edge of the end portion, connected with the hole, of the measuring pin is closely attached to the cambered face module. When the cambered face static pressure measuring module is used, coming fluid flows through the hole end portion at the top end of the cambered face, and fluid static pressure stressed by the hole end portion is transferred into a measuring device through the hole and the measuring pin to accomplish the measuring of the fluid static pressure; due to the fact that the hole end portion is formed in the top end of the cambered face module, local fluid whirl formed by the coming fluid around the end portion of the cambered face is greatly reduced, and therefore the measuring accuracy of the fluid static pressure is improved.
Description
Technical field
The present invention relates to the hydrostatic pressure field of measuring technique, be specifically related to a kind of cambered surface static pressure measurement module and manufacture method thereof.
Background technology
In hydrostatic test at present and scale model ventilation experiment, realize the convection cell static pressure measurement by simple and easy static pressure probe sensing device, the cylindricality chaining pin that chaining pin is hollow, in theory the head of this device chaining pin and fluid come flow path direction vertical the time can obtain static pressure signal accurately, but find that in actual applications this desirable measuring condition is subject to the impact of various factors: as the partial fluid whirlpool of fluid in the formation of chaining pin head, the interference of the extraneous fluid flow fields of measurement point is shaken the chaining pin head, and actual installation environmental limit, directly reduced Surveying Actual Precision, make measurement data inaccurate, thereby the result of study that may lead to errors.
So, need at present a kind of can either avoiding badly and form the partial fluid whirlpool at the chaining pin head, can avoid the chaining pin head jitter again and improve the measuring accuracy of hydrostatic pressure in hydrostatic test.
Summary of the invention
The object of the invention is to: the interference of the partial fluid whirlpool formed for chaining pin head in current hydrostatic test and scale model ventilation experiment, the extraneous fluid flow fields of measurement point is shaken and the actual installation environmental limit chaining pin head, directly reduced the Surveying Actual Precision of hydrostatic pressure, make the inaccurate deficiency of measurement data, provide a kind of can either avoiding to form the partial fluid whirlpool at the chaining pin head, can avoid the chaining pin head jitter again and improve the cambered surface static pressure measurement module of hydrostatic test measuring accuracy.
To achieve these goals, the technical solution used in the present invention is:
A kind of cambered surface static pressure measurement module, comprise cambered surface module and chaining pin, one end of described chaining pin is fixed in described cambered surface module, one side of described cambered surface module is cambered surface, the cambered surface top of described cambered surface module is provided with the hole of connecting with described chaining pin, and the end outer rim that described chaining pin is connected with described hole and described cambered surface module fit tightly.During use, the fluid incoming flow flows through the bore ends that is positioned at the cambered surface top, the hydrostatic pressure that bore ends is subject to is delivered in surveying instrument by hole and chaining pin, complete the measurement of hydrostatic pressure, because bore ends is positioned at the cambered surface top of cambered surface module, make the fluid incoming flow be positioned at the partial fluid whirlpool formed around end on cambered surface in hole and reduce greatly, thereby improved the measuring accuracy of hydrostatic pressure; In addition, because the end at chaining pin is provided with the cambered surface module, during work, chaining pin is not shaken because of the promotion of fluid incoming flow, has reduced the collection signal susceptibility of environmental interference to external world, has further improved the measuring accuracy of hydrostatic pressure.
As preferred version of the present invention, described hole is the cylindricality straight hole.The static pressure that reduces the fluid incoming flow is subject to the impact of cambered surface module while transmitting in the cambered surface module, guarantee the measuring accuracy of hydrostatic pressure.
As preferred version of the present invention, described hole is cylindrical hole.The impact that the static pressure that further reduces the fluid incoming flow is subject to while transmitting in the cambered surface module, guarantee the measuring accuracy of hydrostatic pressure.
As preferred version of the present invention, described chaining pin is perpendicular to described hole.The Hydrostatic Transfer Device of fluid incoming flow is transmitted in chaining pin along the direction perpendicular to chaining pin after arriving in hole, makes the measurement environment of hydrostatic pressure be perfect condition, has improved measuring accuracy, has guaranteed the accuracy of measurement data.
As preferred version of the present invention, the diameter in described hole equals the diameter of described chaining pin inner via hole, the end that described hole is positioned at described cambered surface module surpasses the end that described chaining pin is positioned at described cambered surface module, the end that described chaining pin is positioned at described cambered surface module terminates in the sidewall in described hole, and does not stretch in described hole.Guarantee the smoothness of cambered surface module inner fluid incoming flow Hydrostatic Transfer Device, further guaranteed the accuracy of measuring.
As preferred version of the present invention, the cambered surface of described cambered surface module is arc surface.Further reduce the fluid incoming flow and be positioned at the partial fluid whirlpool formed around the end on arc surface in hole, further guaranteed the precision of measuring.
As preferred version of the present invention, the radius >=50mm of the arc surface of described cambered surface module.In theory, the radius of arc surface is larger, the fluid incoming flow is positioned at the partial fluid whirlpool formed around the end on arc surface in hole less, the hydrostatic pressure the data precision measured is higher, by test, obtain, when the radius of arc surface >=50mm, the change in radius of arc surface progressively reduces the amplitude that affects of static pressure measurement value, so, while can be understood as radius when arc surface >=50mm, although the increase of the radius of arc surface still can improve the accuracy of hydrostatic pressure measurement data, but it is little to have improved amplitude, so the minimum value of the radius of arc surface is set to 50mm.
As preferred version of the present invention, the radius of the arc surface of described cambered surface module is 65mm.Because the size of cambered surface module is subject to the restriction of actual usage space size, the radius of the arc surface of cambered surface module is set to 65mm, can meet the accuracy of measurement, also can avoid because the oversize restriction that is subject to the real space size of cambered surface module affects use.。
A kind of cambered surface static pressure measurement module manufacture method, comprise chaining pin production process, cambered surface module production process, assembly process and detection operation,
Described cambered surface module production process comprises successively:
A, mfg. moulding die: use the P20 steel to make mould according to profile and the size of described cambered surface module;
B, injection moulding: will be injected in the mould that described A step obtains the cooling cambered surface module that obtains after the ABS plastic melting;
Described assembly process comprises successively:
A, heating arc face mould piece: the cambered surface module that described step B is obtained is put into micro-wave oven and is heated to expand;
B, insertion chaining pin: first in hole, insert the chaining pin limited block matched with described hole, and then in the described cambered surface measurement module that obtains of the chaining pin inserting step a that the chaining pin production process is obtained, finally take out described chaining pin limited block, obtain cambered surface static pressure measurement module after cooling;
Described detection operation is put into water for the cambered surface static pressure measurement module that step b is obtained, and passes into air in chaining pin, and whether the joint place of detecting between chaining pin and cambered surface module has bubble to emerge, if bubble is arranged emerges, defective, if emerge without bubble, qualified.
Cambered surface static pressure measurement module of the present invention, adopt the mould of P20 steel as the cambered surface module, make make the mould obtain can Reusability repeatedly, and the mold polish of making is good, make the cambered surface module smooth outer surface obtained, guaranteed in use, at the difficult partial fluid whirlpool that forms of the bore ends of cambered surface; In addition, because ABS plastic is one of five large synthetic resin, its impact resistance, thermotolerance, lower temperature resistance, chemical proofing and excellent electrical properties, also there are the characteristics such as easy processing, product size is stable, surface gloss property is good, make to make that to have obtained the globoidal model block structure stable, can Reusability, also guaranteed that the bore ends on the cambered surface is difficult for forming the partial fluid whirlpool, and the fluid incoming flow is mobile smooth and easy in hole, has further guaranteed the accuracy of measuring.
As preferred version of the present invention, in described chaining pin production process, described chaining pin is for adopting the line cutting mode that stainless-steel tube is cut into pieces as chaining pin.Simple to operation, and the chaining pin end is smooth, guarantees in the hydrostatic pressure measurement degree of accuracy of measurement data.
In sum, owing to having adopted technique scheme, the invention has the beneficial effects as follows:
1, the fluid incoming flow flows through the bore ends that is positioned at the cambered surface top, the hydrostatic pressure that bore ends is subject to is delivered in surveying instrument by hole and chaining pin, complete the measurement of hydrostatic pressure, because bore ends is positioned at the cambered surface top of cambered surface module, make the fluid incoming flow be positioned at the partial fluid whirlpool formed around end on cambered surface in hole and reduce greatly, thereby improved the measuring accuracy of hydrostatic pressure;
2, because the end at chaining pin is provided with the cambered surface module, during work, chaining pin is not shaken because of the promotion of fluid incoming flow, has reduced the collection signal susceptibility of environmental interference to external world, has further improved the measuring accuracy of hydrostatic pressure;
3, simple in structure, easy to install.
The accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
The vertical view that Fig. 2 is Fig. 1;
The structural representation that Fig. 3 is cambered surface module and chaining pin limited block,
Mark in figure: 1-chaining pin, 2-cambered surface module, 3-hole, 4-chaining pin limited block.
Embodiment
Below in conjunction with accompanying drawing, the present invention is described in detail.
In order to make purpose of the present invention, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein, only in order to explain the present invention, is not intended to limit the present invention.
A kind of cambered surface static pressure measurement module as shown in Figure 1, Figure 2 and Figure 3, comprise cambered surface module 2 and chaining pin 1, one end of described chaining pin 1 is fixed in described cambered surface module 2, one side of described cambered surface module 2 is cambered surface, the cambered surface top of described cambered surface module 2 is provided with the hole 3 of connecting with described chaining pin 1, and end outer rim and described cambered surface module 2 that described chaining pin 1 is connected with described hole 3 fit tightly.During use, the fluid incoming flow flows through 3 ends, hole that are positioned at the cambered surface top, the hydrostatic pressure that 3 ends, hole are subject to is delivered in surveying instrument by hole 3 and chaining pin 1, complete the measurement of hydrostatic pressure, because 3 ends, hole are positioned at the cambered surface top of cambered surface module 2, the partial fluid whirlpool that makes the fluid incoming flow form around 3 ends that are positioned on cambered surface in hole reduces greatly, thereby has improved the measuring accuracy of hydrostatic pressure; In addition, because the end at chaining pin 1 is provided with cambered surface module 2, during work, chaining pin 1 is not shaken because of the promotion of fluid incoming flow, has reduced the collection signal susceptibility of environmental interference to external world, has further improved the measuring accuracy of hydrostatic pressure.
As preferred version of the present invention, described hole 3 is cylindricality straight hole 3.The static pressure that reduces the fluid incoming flow is subject to the impact of cambered surface module 2 when the interior transmission of cambered surface module 2, guarantees the measuring accuracy of hydrostatic pressure.
As preferred version of the present invention, described hole 3 is cylindrical hole 3.The static pressure that further reduces the fluid incoming flow, in the impact that cambered surface module 2 is interior to be subject to while transmitting, guarantees the measuring accuracy of hydrostatic pressure.
As preferred version of the present invention, described chaining pin 1 is perpendicular to described hole 3.After the Hydrostatic Transfer Device of fluid incoming flow is interior to hole 3, along the direction perpendicular to chaining pin 1, be transmitted in chaining pin 1, make the measurement environment of hydrostatic pressure be perfect condition, improved measuring accuracy, guaranteed the accuracy of measurement data.
As preferred version of the present invention, the diameter in described hole 3 equals the diameter of described chaining pin 1 inner via hole, the end that described hole 3 is positioned at described cambered surface module 2 surpasses the end that described chaining pin 1 is positioned at described cambered surface module 2, the end that described chaining pin 1 is positioned at described cambered surface module 2 terminates in the sidewall in described hole 3, and does not stretch in described hole 3.Guarantee the smoothness of cambered surface module 2 inner fluid incoming flow Hydrostatic Transfer Device, further guaranteed the accuracy of measuring.
As preferred version of the present invention, the cambered surface of described cambered surface module 2 is arc surface.Further reduce the partial fluid whirlpool that the fluid incoming flow forms around 3 ends that are positioned on cambered surface in hole, further guaranteed the precision of measuring.
As preferred version of the present invention, the radius >=50mm of the arc surface of described cambered surface module 2.In theory, the radius of arc surface is larger, the partial fluid whirlpool that the fluid incoming flow forms around 3 ends that are positioned on arc surface in hole is less, the hydrostatic pressure the data precision measured is higher, by test, obtain, measurement data as shown in table 1, when the radius of arc surface >=50mm, the change in radius of arc surface is less than 0.001% to the amplitude that affects of static pressure measurement value, so, while can be understood as radius when arc surface >=50mm, although the increase of the radius of arc surface still can improve the accuracy of hydrostatic pressure measurement data, but it is little to have improved amplitude, so the minimum value of the radius of arc surface is set to 50mm.
Table 1: wind-tunnel contrast blowing test figure,
As preferred version of the present invention, the radius of the arc surface of described cambered surface module 2 is 65mm.Because the size of cambered surface module 2 is subject to the restriction of actual usage space size, the radius of the arc surface of cambered surface module 2 is set to 65mm, can meet the accuracy of measurement, also can avoid because the oversize restriction that is subject to the real space size of cambered surface module 2 affects use.
As preferred version of the present invention, described arc surface radius is 65mm.When the arc surface radius is 65mm, the partial fluid whirlpool minimum that the fluid incoming flow produces around 3 ends that are positioned on cambered surface in hole, guaranteed the accuracy of measurement and higher precision.
A kind of cambered surface static pressure measurement module manufacture method, comprise chaining pin 1 production process, cambered surface module 2 production process, assembly process and detection operation,
Described cambered surface module 2 production process comprise successively:
A, mfg. moulding die: use the P20 steel to make mould according to profile and the size of described cambered surface module 2;
B, injection moulding: will be injected in the mould that described A step obtains the cooling cambered surface module 2 that obtains after the ABS plastic melting;
Described assembly process comprises successively:
A, heating arc face mould piece: the cambered surface module 2 that described step B is obtained is put into micro-wave oven and is heated to expand;
B, insertion chaining pin: the chaining pin limited block 4 that first 3 interior insertions match with described hole 3 in hole, and then in the described cambered surface measurement module 2 that obtains of the chaining pin 1 inserting step a that chaining pin 1 production process is obtained, finally take out described chaining pin limited block 4, obtain cambered surface static pressure measurement module after cooling;
Described detection operation is put into water for the cambered surface static pressure measurement module that step b is obtained, and passes into air in chaining pin 1, and whether the joint place of detecting between chaining pin 1 and cambered surface module 2 has bubble to emerge, if bubble is arranged emerges, defective, if emerge without bubble, qualified.
Cambered surface static pressure measurement module of the present invention, adopt the mould of P20 steel as cambered surface module 2, make make the mould obtain can Reusability repeatedly, and the mold polish of making is good, make the cambered surface module smooth outer surface obtained, guaranteed in use, in 3 ends, hole of cambered surface, be difficult for forming the partial fluid whirlpool; In addition, because ABS plastic is one of five large synthetic resin, its impact resistance, thermotolerance, lower temperature resistance, chemical proofing and excellent electrical properties, also there are the characteristics such as easy processing, product size is stable, surface gloss property is good, make to make and obtained cambered surface module 2 Stability Analysis of Structures, can Reusability, also guaranteed that 3 ends, hole on the cambered surface are difficult for forming the partial fluid whirlpool, further guaranteed the accuracy of measuring.
As preferred version of the present invention, in described chaining pin 1 production process, described chaining pin 1 is for adopting the line cutting mode that stainless-steel tube is cut into pieces as chaining pin 1.Simple to operation, and chaining pin 1 end is smooth, guarantees in the hydrostatic pressure measurement degree of accuracy of measurement data.
All any modifications of doing within the spirit and principles in the present invention, be equal to and replace and improvement etc., within all should being included in protection scope of the present invention.
Claims (10)
1. cambered surface static pressure measurement module, comprise cambered surface module and chaining pin, one end of described chaining pin is fixed in described cambered surface module, one side of described cambered surface module is cambered surface, the cambered surface top of described cambered surface module is provided with the hole of connecting with described chaining pin, and the end outer rim that described chaining pin is connected with described hole and described cambered surface module fit tightly.
2. cambered surface static pressure measurement module according to claim 1, is characterized in that, described hole is the cylindricality straight hole.
3. cambered surface static pressure measurement module according to claim 2, is characterized in that, described hole is cylindrical hole.
4. according to the described cambered surface static pressure measurement of claim 1-3 any one module, it is characterized in that, described chaining pin is perpendicular to described hole.
5. cambered surface static pressure measurement module according to claim 4, it is characterized in that, the diameter in described hole equals the diameter of described chaining pin inner via hole, the end that described hole is positioned at described cambered surface module surpasses the end that described chaining pin is positioned at described cambered surface module, and the end that described chaining pin is positioned at described cambered surface module terminates in the sidewall in described hole but do not stretch into described hole.
6. cambered surface static pressure measurement module according to claim 5, is characterized in that, the cambered surface of described cambered surface module is arc surface.
7. cambered surface static pressure measurement module according to claim 6, is characterized in that the radius >=50mm of described arc surface.
8. cambered surface static pressure measurement module according to claim 7, is characterized in that, described arc surface radius is 65mm.
9. cambered surface static pressure measurement module manufacture method, comprise chaining pin production process, cambered surface module production process, assembly process and detection operation,
Described cambered surface module production process comprises successively:
A, mfg. moulding die: use the P20 steel to make mould according to profile and the size of described cambered surface module;
B, injection moulding: will be injected in the mould that described A step obtains the cooling cambered surface module that obtains after the ABS plastic melting;
Described assembly process comprises successively:
A, heating arc face mould piece: the cambered surface module that described step B is obtained is put into micro-wave oven and is heated to expand;
B, insertion chaining pin: first in hole, insert the chaining pin limited block matched with described hole, and then in the described cambered surface measurement module that obtains of the chaining pin inserting step a that the chaining pin production process is obtained, finally take out described chaining pin limited block, obtain cambered surface static pressure measurement module after cooling;
Described detection operation is put into water for the cambered surface static pressure measurement module that step b is obtained, and passes into air in chaining pin, and whether the joint place of detecting between chaining pin and cambered surface module has bubble to emerge, if bubble is arranged emerges, defective, if emerge without bubble, qualified.
10. cambered surface static pressure measurement module manufacture method according to claim 9, is characterized in that, in described chaining pin production process, described chaining pin is for adopting the line cutting mode that stainless-steel tube is cut into pieces as chaining pin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013104207995A CN103454039A (en) | 2013-09-16 | 2013-09-16 | Cambered face static pressure measuring module and manufacturing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013104207995A CN103454039A (en) | 2013-09-16 | 2013-09-16 | Cambered face static pressure measuring module and manufacturing method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103454039A true CN103454039A (en) | 2013-12-18 |
Family
ID=49736655
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013104207995A Pending CN103454039A (en) | 2013-09-16 | 2013-09-16 | Cambered face static pressure measuring module and manufacturing method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103454039A (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001110328A (en) * | 1999-09-22 | 2001-04-20 | Lg Electronics Inc | Magnetron |
| CN2674423Y (en) * | 2004-02-16 | 2005-01-26 | 熊猫电子集团有限公司 | Air fluid static pressure measuring joint |
| CN2735311Y (en) * | 2004-09-01 | 2005-10-19 | 毛新业 | Shuttle type flowmeter |
| CN2736741Y (en) * | 2004-09-13 | 2005-10-26 | 明笛 | Differential pressure flow meter |
| CN201335843Y (en) * | 2009-01-04 | 2009-10-28 | 南京万和测控仪表有限公司 | Double-throat-diameter venturi air-velocity measuring pipe |
| CN101718737A (en) * | 2009-11-16 | 2010-06-02 | 杭州电子科技大学 | Deep sea water parameter measuring device |
| CN201522487U (en) * | 2009-11-16 | 2010-07-07 | 杭州电子科技大学 | Deep sea water parameter measuring device |
| CN202403741U (en) * | 2011-12-21 | 2012-08-29 | 中国航空工业集团公司沈阳发动机设计研究所 | Differential pressure type high-temperature air flow measurement device |
| CN202533105U (en) * | 2012-03-21 | 2012-11-14 | 上海肯特仪表股份有限公司 | Circular-arc target-shaped target flowmeter |
| CN203422189U (en) * | 2013-09-16 | 2014-02-05 | 东方电气集团东方电机有限公司 | Cambered-surface static pressure measurement module |
-
2013
- 2013-09-16 CN CN2013104207995A patent/CN103454039A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001110328A (en) * | 1999-09-22 | 2001-04-20 | Lg Electronics Inc | Magnetron |
| CN2674423Y (en) * | 2004-02-16 | 2005-01-26 | 熊猫电子集团有限公司 | Air fluid static pressure measuring joint |
| CN2735311Y (en) * | 2004-09-01 | 2005-10-19 | 毛新业 | Shuttle type flowmeter |
| CN2736741Y (en) * | 2004-09-13 | 2005-10-26 | 明笛 | Differential pressure flow meter |
| CN201335843Y (en) * | 2009-01-04 | 2009-10-28 | 南京万和测控仪表有限公司 | Double-throat-diameter venturi air-velocity measuring pipe |
| CN101718737A (en) * | 2009-11-16 | 2010-06-02 | 杭州电子科技大学 | Deep sea water parameter measuring device |
| CN201522487U (en) * | 2009-11-16 | 2010-07-07 | 杭州电子科技大学 | Deep sea water parameter measuring device |
| CN202403741U (en) * | 2011-12-21 | 2012-08-29 | 中国航空工业集团公司沈阳发动机设计研究所 | Differential pressure type high-temperature air flow measurement device |
| CN202533105U (en) * | 2012-03-21 | 2012-11-14 | 上海肯特仪表股份有限公司 | Circular-arc target-shaped target flowmeter |
| CN203422189U (en) * | 2013-09-16 | 2014-02-05 | 东方电气集团东方电机有限公司 | Cambered-surface static pressure measurement module |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202974619U (en) | Total pressure probe | |
| CN206146784U (en) | Tuning fork formula on -line densimeter | |
| CN203422189U (en) | Cambered-surface static pressure measurement module | |
| CN203177885U (en) | Standard device used in three-dimensional non-contact measuring system calibration | |
| US20090066333A1 (en) | NMR Sample Tube | |
| CN103454039A (en) | Cambered face static pressure measuring module and manufacturing method thereof | |
| CN102109338B (en) | Testing method for radian of end cover | |
| CN202361932U (en) | Crossed-hole distance testing fixture | |
| CN206147085U (en) | Current transformer measures frock | |
| CN105066852A (en) | Measurement tool and measurement method of verticality of deep hole of tube plate | |
| CN204085419U (en) | A kind of chamfering measuring instrument | |
| CN202836483U (en) | Detection tool for pin shaft linearity | |
| CN202676060U (en) | Tool for position measuring of hole and face of connecting rod bolt | |
| CN109631730A (en) | A kind of roller palm device for detecting symmetry degree and its detection method | |
| CN204820253U (en) | Fully electric injection machine injects pressure measuring equipment | |
| CN204514305U (en) | A kind of measurement mechanism of counterbore angle | |
| CN202304971U (en) | Traceability comparison rod for cigarette/filter rod detection | |
| CN204854667U (en) | Wide measuring device of non -contact keyway | |
| CN206863144U (en) | A kind of plug-in connector inserts test structure in fact | |
| CN205102817U (en) | Device for connecting sensor and drive case of contourgraph | |
| CN204346343U (en) | Rotor dip stick | |
| CN202361929U (en) | Measuring tool for detecting pipe inner diameter | |
| CN204438969U (en) | A kind of fast precise height detecting device | |
| CN205262373U (en) | A examine utensil for detecting inclined hole degree of depth | |
| CN102116601B (en) | The detection method of oscillating blade radius and device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20131218 |
|
| RJ01 | Rejection of invention patent application after publication |