CN103017967A - Underwater spoke type force sensor - Google Patents
Underwater spoke type force sensor Download PDFInfo
- Publication number
- CN103017967A CN103017967A CN2012105193923A CN201210519392A CN103017967A CN 103017967 A CN103017967 A CN 103017967A CN 2012105193923 A CN2012105193923 A CN 2012105193923A CN 201210519392 A CN201210519392 A CN 201210519392A CN 103017967 A CN103017967 A CN 103017967A
- Authority
- CN
- China
- Prior art keywords
- wheel rim
- spool
- pressurized capsule
- hub
- cover plate
- 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.)
- Granted
Links
Images
Abstract
The invention provides an underwater spoke type force sensor. The underwater spoke type force sensor comprises an elastic component for sensing being measured and a transformation amplifier element for force signals processing. The elastic component includes a rim, spokes, a hub, an upper cover plate, a lower cover plate and strain gages, wherein each of the spokes is formed by four elastic shear beams, both ends of each of the spokes are connected between the hub and the rim, each of the front sides and the reverse sides of the four spokes is attached to the strain gauges, the upper cover plate and the lower cover plate are respectively fixed to the upper ends and lower ends of the rim, and the contact surfaces of both the upper cover plate and the lower cover plate and the rim as well as the upper cover plate and the lower cover plate and the hub are provided with sealing washers. The transformation amplifier element includes signal data lines and a circuit board, wherein the circuit board is fixed in a sealed cabin and the signal data lines are connected between an upper strain gage of the spokes and the circuit board in the sealed cabin. The underwater spoke type force sensor is high in strength and good in reliability and can detect the rope tension in real time. The underwater spoke type force sensor can work in the amphibious environment and can be applied to the detection of the pull force, drag force and extrusion force in other devices.
Description
Technical field
What the present invention relates to is a kind of power sensor.The online power sensor that detects of diamond saw rope tension when specifically a kind of saw of can restricting under water again by land cuts pipeline.
Background technology
The saw of restricting under water is the equipment for the offshore oilfield pipeline maintenance.This equipment is mainly realized the offshore oilfield pipeline cutting operation, in order more effectively to finish cutting operation, needs to be equipped with saw rope tension force and detects control system.By detecting the cutting radial feed state of control system adjustment rope saw, make saw rope in the tension range of safety, carry out cutting work.
Has following difficulties during the underwater sensor design: because sensor is in certain sea water advanced middle work, should have good underwater sealing performance; Aspect volume structure, must adapt with rope saw body; Sensor must reach under the 0.5%FS requirement condition satisfying accuracy of measurement, the characteristics such as have anti-vibration, be easy to install, power consumption is little.
Relevant rope tension detects and the open report of sensor mainly comprises:
1, Chen Xianzhong, grey large strong, appoint it Wei. multirope friction winder steel wire rope tension on-line monitoring sensor. and the journal .1998 of University of Science ﹠ Technology, Beijing (10), introduced a kind of new type mining multirope friction winder dynamic tension monitoring sensor, adopt disk pressure elastic membrane to export as polar distance differential capacitor signal, sensor elastic sensing element and change-over circuit are integrated totally-enclosedly to be manufactured and designed, and has good anti-vibration and shock resistance, is applicable to the abominable working environment in down-hole.
2, Jin Huawei, Zhang Xin, Lv Jiajia. the design of strain-type armored rope tension sensor. mining machinery .2010 (07), according to the requirement of multi-rope winder steel wire rope dynamic tension test, designed a kind of sensor for direct measuring steel wire rope dynamic tension.This sensor has adopted strain-type to shear measuring principle, and it is little to have a volume, and measurement range is large, is convenient to install, and does not change the characteristics such as coupling arrangement structure.
3, a kind of tension monitoring device for cargo binding steel wire rope, number of patent application 201010268558.X, it comprises piezoelectric activated module, tonometry module and alarm communication module.The piezoelectric activated module comprises piezo ceramic element, piezoelectric activated mainboard; The piezoelectric activated mainboard comprises power switch circuit, signal processing circuit and single-chip microcomputer; The tonometry module comprises side-pressure tension sensor, measures mainboard; Measure mainboard and comprise tension force output circuit, power switch circuit, demonstration charactron; Alarm communication module comprises communication mainboard, wireless communication unit and alarm unit, radio communication GPRS; Communication mainboard comprises interface circuit, comparison controller, safety value regulating circuit.Piezoelectric activated mainboard, measurement mainboard, alarm communication module and battery are fixed in the protecting sheathing.Shell is fixed on the side-pressure tension sensor.Piezo ceramic element is attached on the side-pressure tension sensor, during operation and wire rope keep in touch.Device is clamped on the wire rope by side-pressure tension sensor.
4, Cao Liwen, Ding Haijuan. diamond bead string rope tension pick-up and Performance Analysis. industry measurement, 2007 (09), introduce the principle of work of diamond bead string rope tension pick-up, and carried out the demarcation of sensor.By the Performance Analysis to sensor, this sensor has reached designing requirement, and this tension pick-up can be measured bead string rope tension force accurately, reliably.
Can be drawn by above-mentioned document, document 1-3 saw rope tension detection mainly is to seal in dynamometer or force cell in tested saw rope, adopt in addition contact saw rope tension pick-up, the saw rope tension signal is converted to snap-in force signal and the displacement signal of sensor, obtain thus saw rope tension detection value.Saw saw rope cutting movement is the revolution form of taking turns going along with owing to restrict under water, and these force cells can't be installed in saw rope, and signal wire can not be connected with the external world, and therefore, above method all can not be used.Document 4 metering systems are that rope saw bead string rope in cutting process produces pressure to angle sheave, this pressure is passed to elastic shaft and is made it to produce and the proportional strain signal of tension force, although this tension pick-up can be measured bead string rope tension force exactly, but elastic shaft intensity is low, in real work, the fault that axle fracture can occur causes sensor to damage, thereby poor reliability.
Summary of the invention
The object of the present invention is to provide a kind of intensity height, good reliability, can detect in real time the power of the radial under water sensor of saw rope tension force.
The objective of the invention is to be achieved by the following scheme:
Comprise for the measured elastic parts of direct feeling, be used for the conversion amplifier element that force signal is processed; Described elastic parts comprises wheel rim, spoke, wheel hub, upper cover plate, lower cover, foil gauge, described spoke is comprised of four elastic shear beams, the two ends of every spoke are connected between wheel hub and the wheel rim, pros and cons at four spokes posts respectively foil gauge, upper and lower cover plates is separately fixed at the wheel rim upper and lower side, and the surface of contact place of upper and lower cover plates and wheel rim and the surface of contact place of upper and lower cover plates and wheel hub all are added with packing washer; Described conversion amplifier element comprises signal data line, circuit board, and circuit board is fixed in the pressurized capsule, the signal data line connect and spoke in foil gauge and the pressurized capsule between the circuit board.
The present invention can also comprise:
1, described wheel rim is made of upper wheel rim and lower wheel rim two parts, described wheel hub is made of upper wheel hub and lower hub, is connected by bolt between upper wheel rim and lower wheel rim and upper wheel hub and the lower hub, described spoke is embedded in outside the lower hub and up and down between the wheel rim inboard.
2, be connected with away spool between wheel rim and the pressurized capsule, described signal data line is arranged in away in the spool.
3, described pressurized capsule outer end has external thread, there is annular seal groove the end, in seal groove, be equipped with an O RunddichtringO, gland bonnet has internal thread and realizes being threaded with pressurized capsule, realize static seal by an O RunddichtringO, the watertight cable joint is threaded connection and is used for data on the pressurized capsule sidewall to the output of underwater sealing control cabinet.
4, a described end of walking spool is connected with pressurized capsule, walks the spool front end and has fine thread, walks the fine thread of spool by front end and is screwed into wheel rim sidewall tapping, is equipped with the 2nd O RunddichtringO walking conduit end.
The characteristics of the power of radial under water sensor of the present invention are that intensity is high, good reliability, can detect in real time saw rope tension force, keep in the zone of reasonableness by feedback system control cutting tension force.It can be worked in amphibious environment, also can use pulling force in other device simultaneously, pull the detections such as power, extruding force.
Description of drawings
Fig. 1 is external structure synoptic diagram of the present invention.
Fig. 2 is the A-A cut-open view of Fig. 1.
Fig. 3 a is the stressed synoptic diagram of flexible member, and Fig. 3 b is the vertical view of Fig. 3 a.
Fig. 4 is that saw rope of the invention process detects principle schematic.
Embodiment
Radial power sensor of the present invention mainly by be used for the measured elastic parts of direct feeling, be used for the conversion amplifier element that force signal processes, the seal assembly that is used for the element underwater sealing forms.
Described elastic parts comprises up and down wheel rim, spoke, upper lower hub, upper cover plate, lower cover, everywhere coupling bolt, packing washer, foil gauge and connection electric wire thereof.Described spoke is comprised of four elastic shear beams, is embedded in outside the lower hub and up and down between the wheel rim inboard.Pros and cons at four spokes posts respectively foil gauge, reflects the distortion of spoke by foil gauge, thereby obtains the size of external force.Described upper cover plate is fixed on upper wheel rim upper end by coupling bolt, and same, lower cover also is fixed on lower wheel rim lower end by coupling bolt.Described upper lower hub is connected by coupling bolt, drives spoke and moves up and down together.All be added with the sealing that packing washer is realized this sensor elastic parts between described each element surface of contact.
Described conversion amplifier element comprises signal data line, circuit board, register pin.Circuit board in foil gauge and the pressurized capsule on the described signal data line connection spoke, circuit board is fixed in the pressurized capsule by register pin.
Described seal assembly comprises pressurized capsule, gland bonnet, watertight cable joint, O RunddichtringO.Described pressurized capsule outer end has external thread, and there is annular seal groove the end, is equipped with the O RunddichtringO in seal groove.Described gland bonnet has internal thread, realizes being threaded with pressurized capsule, realizes static seal by O-ring seal.Described watertight cable joint is threaded connection on the pressurized capsule sidewall, realizes that data are to the output of underwater sealing control cabinet.
Described conversion amplifier element and seal element constitute closed circuit plate cavity, this cavity is screwed into wheel rim sidewall tapping by the spool of walking that front end has fine thread, be equipped with the O RunddichtringO in the end, realize away sealing between spool and wheel rim by fine thread screwing length and O-ring seal.
Below in conjunction with Fig. 1-Fig. 2, elaborate the preferred embodiment of the present invention.
A kind of power of radial under water sensor by upper wheel rim 1, spoke 2, upper wheel hub 3, short coupling bolt 4, upper hub seal ring 5, upper cover plate 6, upper cover plate O-ring seal 7, lower wheel rim 8, long coupling bolt 9, lower cover 10, lower hub O-ring seal 11, wheel hub coupling bolt 12, lower hub 13, lower cover O-ring seal 14, walk conduit end O-ring seal 15, walk spool 16, signal data line 17, register pin 18, circuit board 19, pressurized capsule 20, end cap seal circle 21, gland bonnet 22 form.
By walking spool 16 signal wire 17 is guided in the pressurized capsule 20 on the circuit board 19 by spoke 2 foil gauge places; Circuit board 19 is fixed in the pressurized capsule 20 by register pin 18, by watertight cable joint III signal is exported to the external world; Pressurized capsule 20 outer ends have external thread, and there is annular seal groove the end, are equipped with O RunddichtringO 21 in seal groove, and gland bonnet 22 has internal thread, carry out thread seal with pressurized capsule 20 and are connected, and consist of closed circuit plate combined cavity II.
Circuit board composition cavity II is screwed into lower wheel rim 8 side-wall hole places by the spool 16 of walking that front end has fine thread, connect the elastic parts I, be equipped with the O RunddichtringO in the end, realize away spool 16 and 8 sealings of lower wheel rim by fine thread screwing length and O-ring seal.
In conjunction with Fig. 3 a-Fig. 3 b, principle of work of the present invention is described:
This sensor has two kinds of forms when mounted, and a kind of is that wheel hub 3 cooperates as pedestal with the fixture axis with center pit, and wheel rim 1 is as external force F actuating member, and like this, wheel hub 3 is subject to the symmetrical counter-force that size equates with external force F; Another kind is that wheel rim 1 outer wall cooperates as pedestal with the fixture mesopore, and wheel hub 3 is as external force F actuating member, and same wheel rim 1 is subject to the symmetrical counter-force that size equates with external force F.This symmetrical counter-force, make spoke 2 produce parallelogramming deflection, produce corresponding deformation so that be attached to the foil gauge of four spoke 2 pros and cons, convert resistance change to, resistance change is changed into the output voltage Δ U of electric bridge by bridge balancing circuit, this voltage signal Δ U is treated and amplify, and just can reflect the size of external force.
In conjunction with Fig. 4, the embodiment of restricting the present invention under water saw saw rope tension force detecting in real time is described:
The saw saw rope of restricting under water tension pick-up design parameter is: 1. range: 0～10000N; 2. Full-span output: 5 ± 0.1VDC; 3. accuracy: ± 0.05%FS; 4. zero point drift: 0.02%FS; 5. thermal zero drift: 0.02%FS/ ℃; 6. allow overload: 120%; 7. working temperature :-40～85 ℃; 8. frequency response: 〉=5KHz.
The physical construction of the saw saw rope of restricting under water tension detection system is comprised of guide screw lock jack panel 31, horizontal end plate 32, front end coupling bolt 33, side rails riser 34, power sensor 35, thrust bearing 36, leading screw 37, rear end coupling bolt 38, pedestal 39, feed screw nut 40, guide rail 41, guide wheel shaft 42, angle sheave 43, saw rope 44.Power sensor 35 is installed on the leading screw 37, be the first mounting means, specifically wheel hub 3 cooperates with fixture leading screw 37 with center pit, stressedly evenly be equipped with thrust bearing 36 in wheel hub 3 rear ends for making, leading screw 37 cooperates for acme thread with feed screw nut 40, feed screw nut 40 upper ends are that the bearing pin form is inserted in pedestal 39 holes fixing, pedestal 39 is fixedly connected with the frame bolt by four connecting hole a, therefore, feed screw nut 40 transfixions, simultaneously, leading screw 37 after tension force is set up in turn by guide screw lock jack panel 31 lock-bits, like this, leading screw 37 is motionless when cutting, and namely wheel hub 3 is motionless; And wheel rim 1 is fixed by horizontal end plate 32 ends, horizontal end plate 32 is connected with two side rails risers 34 by bolt 33, saw rope 44 is walked around angle sheave 43, guide wheel shaft 42 is connected with two side rails, 41 bearing pins, have the dovetail groove that matches at pedestal 39 with two side rails 41, two side rails risers 34 can be along pedestal 39 transverse shiftings, like this, saw rope 44 tension force will be passed on the horizontal end plate 32 by guide wheel shaft 42, two side rails risers 34 with joint efforts, and namely wheel rim 1 will be subject to external force F effect.
It is when rope saw cutting pipeline that the saw saw rope of restricting under water tension force detects principle, saw rope 44 tension force are made a concerted effort real-time effect on horizontal end plate 32, horizontal end plate 32 is pressed on the wheel rim 1 of power sensor 35, to be subject to the symmetrical counter-force that size equates with external force F at stationary parts wheel hub 3, this symmetric force makes spoke 2 produce parallelogramming deflection, produce corresponding deformation so that be attached to the foil gauge of four spoke pros and cons, process and amplification through signal, just can reflect online external force F, it is the size of saw rope tension force, thereby, realized that the online of saw rope tensile force detects in real time.
Claims (9)
1. a radial power sensor under water comprises for the measured elastic parts of direct feeling, is used for the conversion amplifier element that force signal is processed; It is characterized in that: described elastic parts comprises wheel rim, spoke, wheel hub, upper cover plate, lower cover, foil gauge, described spoke is comprised of four elastic shear beams, the two ends of every spoke are connected between wheel hub and the wheel rim, pros and cons at four spokes posts respectively foil gauge, upper and lower cover plates is separately fixed at the wheel rim upper and lower side, and the surface of contact place of upper and lower cover plates and wheel rim and the surface of contact place of upper and lower cover plates and wheel hub all are added with packing washer; Described conversion amplifier element comprises signal data line, circuit board, and circuit board is fixed in the pressurized capsule, the signal data line connect and spoke in foil gauge and the pressurized capsule between the circuit board.
2. the power of radial under water sensor according to claim 1, it is characterized in that: described wheel rim is made of upper wheel rim and lower wheel rim two parts, described wheel hub is made of upper wheel hub and lower hub, is connected by bolt between upper wheel rim and lower wheel rim and upper wheel hub and the lower hub, described spoke is embedded in outside the lower hub and up and down between the wheel rim inboard.
3. the power of radial under water sensor according to claim 1 and 2, it is characterized in that: be connected with away spool between wheel rim and the pressurized capsule, described signal data line is arranged in away in the spool.
4. the power of radial under water sensor according to claim 1 and 2, it is characterized in that: described pressurized capsule outer end has external thread, there is annular seal groove the end, in seal groove, be equipped with an O RunddichtringO, gland bonnet has internal thread and realizes being threaded with pressurized capsule, realize static seal by an O RunddichtringO, the watertight cable joint is threaded connection and is used for data on the pressurized capsule sidewall to the output of underwater sealing control cabinet.
5. the power of radial under water sensor according to claim 3, it is characterized in that: described pressurized capsule outer end has external thread, there is annular seal groove the end, in seal groove, be equipped with an O RunddichtringO, gland bonnet has internal thread and realizes being threaded with pressurized capsule, realize static seal by an O RunddichtringO, the watertight cable joint is threaded connection and is used for data on the pressurized capsule sidewall to the output of underwater sealing control cabinet.
6. the power of radial under water sensor according to claim 1 and 2, it is characterized in that: a described end of walking spool is connected with pressurized capsule, walk the spool front end and have fine thread, walk the fine thread of spool by front end and be screwed into wheel rim sidewall tapping, be equipped with the 2nd O RunddichtringO walking conduit end.
7. the power of radial under water sensor according to claim 3, it is characterized in that: a described end of walking spool is connected with pressurized capsule, walk the spool front end and have fine thread, walk the fine thread of spool by front end and be screwed into wheel rim sidewall tapping, be equipped with the 2nd O RunddichtringO walking conduit end.
8. the power of radial under water sensor according to claim 4, it is characterized in that: a described end of walking spool is connected with pressurized capsule, walk the spool front end and have fine thread, walk the fine thread of spool by front end and be screwed into wheel rim sidewall tapping, be equipped with the 2nd O RunddichtringO walking conduit end.
9. the power of radial under water sensor according to claim 5, it is characterized in that: a described end of walking spool is connected with pressurized capsule, walk the spool front end and have fine thread, walk the fine thread of spool by front end and be screwed into wheel rim sidewall tapping, be equipped with the 2nd O RunddichtringO walking conduit end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210519392.3A CN103017967B (en) | 2012-12-06 | 2012-12-06 | Underwater spoke type force sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210519392.3A CN103017967B (en) | 2012-12-06 | 2012-12-06 | Underwater spoke type force sensor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103017967A true CN103017967A (en) | 2013-04-03 |
| CN103017967B CN103017967B (en) | 2014-12-03 |
Family
ID=47966827
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210519392.3A Expired - Fee Related CN103017967B (en) | 2012-12-06 | 2012-12-06 | Underwater spoke type force sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103017967B (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104330204A (en) * | 2014-11-25 | 2015-02-04 | 黑龙江大学 | Tensile force detecting device of beaded rope for pipeline cutting rope sawing machine |
| CN105043632A (en) * | 2015-07-30 | 2015-11-11 | 中国水产科学研究院南海水产研究所 | Underwater anchor rope tension force acquisition device |
| CN108981870A (en) * | 2018-09-12 | 2018-12-11 | 中机试验装备股份有限公司 | A kind of spoke sensor |
| CN109990988A (en) * | 2017-12-29 | 2019-07-09 | 上海共联通信信息发展有限公司 | A kind of 4G wireless base station device board performance testing device |
| CN110088585A (en) * | 2016-11-28 | 2019-08-02 | Tq系统公司 | Electric Drive element, torque-measuring apparatus and flywheel assembly |
| CN111157219A (en) * | 2019-11-26 | 2020-05-15 | 中国空气动力研究与发展中心低速空气动力研究所 | Rotating shaft balance for propeller power influence wind tunnel test |
| CN112857647A (en) * | 2021-03-25 | 2021-05-28 | 哈尔滨工程大学 | Piston ring circumference elasticity detection device |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1234866A (en) * | 1997-07-15 | 1999-11-10 | Mts系统公司 | Multi-axis load cell |
| US6038933A (en) * | 1997-07-15 | 2000-03-21 | Mts Systems Corporation | Multi-axis load cell |
| CN1527040A (en) * | 2003-09-19 | 2004-09-08 | 哈尔滨工业大学 | Miniature all-plane 6D force and moment sensor |
| CN2650092Y (en) * | 2003-11-13 | 2004-10-20 | 东南大学 | Automobile wheel multi-dimensional force measuring sensor |
| JP2005300465A (en) * | 2004-04-15 | 2005-10-27 | Nitta Ind Corp | Multiaxial sensor |
| CN1908574A (en) * | 2006-08-24 | 2007-02-07 | 北京华油先锋石油装备技术有限公司 | Oil well depth and cable pulling force measurement device |
| JP2007315878A (en) * | 2006-05-25 | 2007-12-06 | Mitsubishi Electric Corp | Multi-axis force/moment sensor |
| CN102087153A (en) * | 2010-11-04 | 2011-06-08 | 燕山大学 | Wheel spoke type fault-tolerant six-dimension force sensor with parallel structure |
-
2012
- 2012-12-06 CN CN201210519392.3A patent/CN103017967B/en not_active Expired - Fee Related
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1234866A (en) * | 1997-07-15 | 1999-11-10 | Mts系统公司 | Multi-axis load cell |
| US6038933A (en) * | 1997-07-15 | 2000-03-21 | Mts Systems Corporation | Multi-axis load cell |
| CN1624444A (en) * | 1997-07-15 | 2005-06-08 | Mts系统公司 | Multi-axis load cell |
| CN1527040A (en) * | 2003-09-19 | 2004-09-08 | 哈尔滨工业大学 | Miniature all-plane 6D force and moment sensor |
| CN2650092Y (en) * | 2003-11-13 | 2004-10-20 | 东南大学 | Automobile wheel multi-dimensional force measuring sensor |
| JP2005300465A (en) * | 2004-04-15 | 2005-10-27 | Nitta Ind Corp | Multiaxial sensor |
| JP2007315878A (en) * | 2006-05-25 | 2007-12-06 | Mitsubishi Electric Corp | Multi-axis force/moment sensor |
| CN1908574A (en) * | 2006-08-24 | 2007-02-07 | 北京华油先锋石油装备技术有限公司 | Oil well depth and cable pulling force measurement device |
| CN102087153A (en) * | 2010-11-04 | 2011-06-08 | 燕山大学 | Wheel spoke type fault-tolerant six-dimension force sensor with parallel structure |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104330204A (en) * | 2014-11-25 | 2015-02-04 | 黑龙江大学 | Tensile force detecting device of beaded rope for pipeline cutting rope sawing machine |
| CN105043632A (en) * | 2015-07-30 | 2015-11-11 | 中国水产科学研究院南海水产研究所 | Underwater anchor rope tension force acquisition device |
| CN105043632B (en) * | 2015-07-30 | 2017-06-16 | 中国水产科学研究院南海水产研究所 | A kind of subsea anchor rope tension harvester |
| CN110088585A (en) * | 2016-11-28 | 2019-08-02 | Tq系统公司 | Electric Drive element, torque-measuring apparatus and flywheel assembly |
| CN110088585B (en) * | 2016-11-28 | 2022-02-15 | Tq系统公司 | Electric transmission element, torque measuring device and flywheel assembly |
| CN109990988A (en) * | 2017-12-29 | 2019-07-09 | 上海共联通信信息发展有限公司 | A kind of 4G wireless base station device board performance testing device |
| CN109990988B (en) * | 2017-12-29 | 2023-11-07 | 上海共联通信信息发展有限公司 | Board card performance testing device for 4G wireless base station equipment |
| CN108981870A (en) * | 2018-09-12 | 2018-12-11 | 中机试验装备股份有限公司 | A kind of spoke sensor |
| CN108981870B (en) * | 2018-09-12 | 2023-11-28 | 中机试验装备股份有限公司 | Spoke sensor |
| CN111157219A (en) * | 2019-11-26 | 2020-05-15 | 中国空气动力研究与发展中心低速空气动力研究所 | Rotating shaft balance for propeller power influence wind tunnel test |
| CN112857647A (en) * | 2021-03-25 | 2021-05-28 | 哈尔滨工程大学 | Piston ring circumference elasticity detection device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103017967B (en) | 2014-12-03 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103017967B (en) | Underwater spoke type force sensor | |
| CN106523008B (en) | Anchor rod stress measuring, reading and early warning device and use method | |
| CN103508288B (en) | Optical fiber grating stretching formula mine hoist equipment steel wire rope tension monitoring device and method | |
| CN112647926B (en) | Sensor and measuring method for synchronously measuring drilling pressure and torque of long-distance drilling rod | |
| CN103863959A (en) | Tension sensor, moment limiter and crane | |
| CN203310548U (en) | Screw-type cylinder-shaped tension sensor | |
| CN103528745A (en) | Device and method for monitoring tension of steel wire rope of FBG (fiber bragg grating) compression type mine hoisting equipment | |
| CN105821760A (en) | Force-monitoring support structure | |
| CN106884648B (en) | Engineering parameter measurement while drilling device for deep water drill string | |
| CN201249198Y (en) | Work roll axial force measuring device in flat rolling mill | |
| CN203200729U (en) | Self-elevating platform lifting device capable of dynamically detecting load | |
| CN209878129U (en) | Embedded type aviation hydraulic pipeline multi-parameter testing, collecting and analyzing device | |
| CN201837497U (en) | Pressure sensor for mines | |
| CN202770357U (en) | Surrounding rock mobile sensor | |
| CN103712552B (en) | Multi-components drilling strain gauge | |
| CN103335749B (en) | Screw rod type tension sensor | |
| CN107131985B (en) | Spoke type grading pressure detection device | |
| CN205711709U (en) | A kind of Dynamometric support structure | |
| CN204286372U (en) | Be applicable to the fiber grating torque sensor structure of underwater environment | |
| CN109238517B (en) | Detection device and detection method for axial force of anchor rod | |
| CN208653700U (en) | Pressure detecting instrument | |
| CN203382394U (en) | Rotating pin measuring and weighing sensor device for container spreader | |
| CN209279948U (en) | A kind of sensor detecting Bending Deformation | |
| RU2373491C1 (en) | Device and method for measurement of tension force | |
| CN203704855U (en) | Multi-component borehole strain gauge |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20201201 Address after: Area A129, 4th floor, building 4, Baitai Industrial Park, Yazhou Bay science and Technology City, Yazhou District, Sanya City, Hainan Province, 572024 Patentee after: Nanhai innovation and development base of Sanya Harbin Engineering University Address before: 150001 Heilongjiang, Nangang District, Nantong street,, Harbin Engineering University, Department of Intellectual Property Office Patentee before: HARBIN ENGINEERING University |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141203 Termination date: 20201206 |