CN102657932A - Tennis racket response online detector - Google Patents
Tennis racket response online detector Download PDFInfo
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- CN102657932A CN102657932A CN201210162380XA CN201210162380A CN102657932A CN 102657932 A CN102657932 A CN 102657932A CN 201210162380X A CN201210162380X A CN 201210162380XA CN 201210162380 A CN201210162380 A CN 201210162380A CN 102657932 A CN102657932 A CN 102657932A
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Abstract
The invention relates to a tennis racket response online detector. A resistance strain telemetry and controls-oriented virtual signal analysis hardware and software technology is adopted, and the online detector can detect the batting strength and speed of a player, batting points, the static and dynamic responses of a racket and the mechanical dynamic characteristic parameters of a racket frame on line in real time. Objective test data is provided for the training of the player and the development of a novel racket. The concrete implement is as follows: a small triaxial resistance strain rosette is stuck on a selected measure point of the racket, a micro strain emitter is installed in a racket handle and emits a signal to a receiver outside a field, and the signal is analyzed through a signal analyzer in real time to obtain a corresponding data curve chart, dynamic display and the like. The detector with light weight and a small body cannot influence the using performance of the racket and the normal motion of a racket user. The detector can be used in player trainings and can also be used for detecting and analyzing the stress situation of the racket frame when the racket is wound. A receiving and analyzing part of the detector can be integrated into a desk computer or a notebook computer and is an effective auxiliary means of tennis coaches, tennis players and racket researchers.
Description
Technical field
Patent of the present invention is to be employed in to paste the small-sized triaxial resistance strain gage on the selected measuring point of tennis racket frame, miniature remote measurement resistance-strain transmitter is installed in handle, lays the response of remote measurement resistance-strain receiver and control subjunctive mood signal analyzer netting racket outside the venue at thread detector.
When this detector is used for measuring the tennis racket frame in the process of winding up; In the suffered magnitude of load of frame and the process of winding up when the size of frame stress and situation of change; Can on the inboard selected measuring point of the empty frame of no string, paste the small-sized triaxial strain rosette earlier; Connect good measurement circuitry, can measure and note the overall process of frame stress intensity and variation in real time.Can also calculate size and the situation of change and distribution of drawing out corresponding principal stress and variation figure of principal stress through control subjunctive mood signal analyzer.
When this detector is used for measuring stand under load and the stress situation of motion process racket; Can on the selected measuring point of the frame of the normal tennis racket of first-class bat string, paste the small-sized triaxial strain rosette; Connect good measurement circuitry, can measure and note the overall process of frame stress intensity and variation in real time.Can also calculate size and the situation of change and distribution of drawing out corresponding principal stress and variation figure of principal stress through control subjunctive mood signal analyzer.
Adopt corresponding method for testing and analyzing, also can test simultaneously before wind up after wind up, the sportsman moves in the batting process, the stressed and overall process that changes of tennis racket frame.
Through gather measuring the strain value of selected each measuring point on the frame simultaneously, through control subjunctive mood signal analyzer analyzing and processing can also be real-time the striking point on the ball position of measuring racket that the sportsman uses, and then can its shot of objective evaluation whether reasonable.
Through on the test stand of simulation loading, calibrating and degree of deciding, can provide the accurate measured value that satisfies required precision.
Patent network racket of the present invention response is used for the tennis player at thread detector training all is very effective means and instrument with the development that novel tennis ball is clapped.Can be widely used in professional tennis player's the teaching of daily workout and tennis school, also be a kind of very effectively research technique of tennis racket manufacturing firm when developing novel racket.
Background technology
Along with domestic and international tennis is more and more universal; Particularly domestic tennis has had significant progress in recent years; Particularly achievement and the status of female player in international tennis circles is increasingly high for China specialty netman, and be corresponding, and the tennis training level of China and the development of the tennis racket also utmost point need to improve thereupon; More need develop in advance, patent network racket response of the present invention is in thread detector Development and design under such background.All belong to initiative at home and abroad.All also do not have effective Combination application with quasi-instrument and means at present both at home and abroad, patent of the present invention has in time been filled up this blank.
Summary of the invention
Patent of the present invention is employed in pastes the small-sized triaxial resistance strain gage, miniature remote measurement resistance-strain transmitter is installed in handle, lays the response of remote measurement resistance-strain receiver and control subjunctive mood signal analyzer netting racket outside the venue at thread detector on the selected measuring point of tennis racket frame.
The technical scheme that patent of the present invention adopts is following:
Patent network racket of the present invention response is at thread detector, mainly by small-sized triaxial resistance strain gage ⑴, miniature remote measurement resistance-strain transmitter ⑵, remote measurement resistance-strain receiver ⑶, control subjunctive mood signal analyzer ⑷, pulse excitation hammer ⑻, piezoelectric force transducer (or reluctance head) ⑼, tennis ⑽, charge amplifier ⑾, be fixed on tennis racket ⑿ on the stand etc. and form.
Small-sized triaxial resistance strain gage ⑴ sticks on the selected measuring point of tennis racket frame ⑸ as required.Each strain rosette ⑴ arranges fixing and is connected with miniature remote measurement resistance-strain transmitter ⑵ in being installed in handle ⑹ along frame ⑸ through ligament.By small-sized triaxial resistance strain gage ⑴ measure to strain signal launch through miniature remote measurement resistance-strain transmitter ⑵; Remote measurement resistance-strain receiver ⑶ by being placed in outside the venue receives; And be sent to control subjunctive mood signal analyzer ⑷ and carry out online in real time and handle, obtain needed data, chart, curve, figure and animation display etc.
Whole demarcation and fixed degree quiet, the dynamic strain test macro carry out through percussion power hammer ⑻, the piezoelectric force transducer ⑼ that is installed in power hammer ⑻ front end, the tennis ⑽ that is bonded in piezoelectric force transducer ⑼ end face, tennis racket ⑿ and the charge amplifier ⑾ that is fixed on the stand.
The relevant specification that the power value of piezoelectric force transducer ⑼ and charge amplifier ⑾ is demarcated according to the mechanical oscillation test carries out.
Piezoelectric force transducer (or reluctance head) ⑼ that is installed on the pulse excitation hammer ⑻ is exclusively used in the demarcation power hammer of measurement tennis to tennis racket impact force size with the tennis ⑽ composition that sticks on piezoelectric force transducer (or reluctance head) ⑼.Its scaling method adopts offline mode to beat the mensuration that the tennis racket ⑿ that is fixed on specially on the stand carries out sensitivity coefficient with this hammering.
Compared with prior art, the advantage of patent of the present invention is:
1, in existing tennis, have only the tennis method of velocity of mensuration and instrument, also do not see and measure the big or small method of tennis impact force and the report of instrument aspect.Patent network racket response of the present invention belongs to domestic and international initiative at thread detector.
2, each that is adopted in the patent of the present invention all is comparatively mature technique and theory in the modern mechanical Engineering Testing Technique about measurement links, carry out the redevelopment of certain transformation conversion and secondary after, its practical implementation is feasible fully.
3, the enforcement of patent of the present invention utilization will make tennis player's the daily workout and the development of novel tennis ball bat all will jump onto a new step, produces fabulous effect.
Description of drawings
Accompanying drawing 1 is the composition sketch map of patent network racket response of the present invention at thread detector.
Accompanying drawing 2 is patent network racket response of the present invention is specifically designed to the band tennis percussion power hammer of Ding Du and demarcation at thread detector structural representations.
Further specify patent of the present invention below in conjunction with accompanying drawing.
Embodiment
As shown in Figure 1; The employed racket of tennis player is simply transformed; Promptly putting on the measuring point that selection need be tested on the frame of racket ⑸ of string of a musical instrument ⑺; And paste small-sized triaxial resistance strain gage ⑴, with the ligament that is fixed on the frame ⑸ small-sized triaxial resistance strain gage ⑴ is connected with miniature remote measurement resistance-strain transmitter ⑵ in being installed in handle ⑹.Like this, the transformation preparation of racket is promptly accused completion.
When the tennis player used this improved racket normally to play ball, relevant strain measurement signal can be transferred to the remote measurement resistance-strain receiver ⑶ and the control subjunctive mood signal analyzer ⑷ that are placed in outside the venue with signal through miniature remote measurement resistance-strain transmitter ⑵ and carry out online in real time analyzing and processing record.
In order to obtain quantitative data, adopt the percussion power hammer of band tennis as shown in Figure 2.Above-mentioned transformed tennis racket is fixed on the stand ⑿; Firmly hammer knocks the different striking point on the balls of the face string of a musical instrument; Note the response data of each measuring point simultaneously, sensitivity coefficient, the hitting power of carrying out can obtaining after the analyzing and processing corresponding various needs through control subjunctive mood signal analyzer ⑷ distributes, batting dessert position or the like test parameter and diagram curve.
Claims (9)
1. tennis racket response is at thread detector, it is characterized in that mainly by small-sized triaxial resistance strain gage ⑴, miniature remote measurement resistance-strain transmitter ⑵, remote measurement resistance-strain receiver ⑶, control subjunctive mood signal analyzer ⑷, pulse excitation hammer ⑻, piezoelectric force transducer (or reluctance head) ⑼, tennis ⑽, charge amplifier ⑾, is fixed on tennis racket ⑿ on the stand etc. and forms.
2. tennis racket according to claim 1 response is at thread detector, it is characterized in that this tennis racket response mainly is made up of pulse excitation hammer ⑻, piezoelectric force transducer (or reluctance head) ⑼, tennis ⑽, tennis racket ⑿ etc. at the special-purpose percussion power hammer of thread detector.
3. tennis racket according to claim 1 response is at thread detector, it is characterized in that this tennis racket response is made up of percussion power hammer ⑻, the piezoelectric force transducer ⑼ that is installed in power hammer ⑻ front end, the tennis ⑽ that is bonded in piezoelectric force transducer ⑼ end face, tennis racket ⑿ and the charge amplifier ⑾ that is fixed on the stand at the demarcation and the fixed degree whole quiet, the dynamic strain test macro of thread detector.
4. tennis racket response according to claim 1 when it is characterized in that the stressed and situation of change in Test Network frame of racket ⑸ is winding up process, is pasted small-sized triaxial resistance strain gage ⑴ at thread detector earlier on the selected measuring point of the empty frame of racket ⑸ of no string.
5. tennis racket response according to claim 1 is at thread detector; It is characterized in that when the stressed and situation of change of Test Network frame of racket ⑸ in sportsman's batting process, on the selected measuring point of the frame ⑸ of first-class bat string, paste small-sized triaxial resistance strain gage ⑴.
6. tennis racket response according to claim 1 is at thread detector; It is characterized in that in simultaneously Test Network frame of racket ⑸ is winding up process stressed and situation of change and in sportsman's batting process during the stressed and situation of change of tennis racket frame, stickup small-sized triaxial resistance strain gage ⑴ on the selected measuring point of the empty frame of racket ⑸ of no string earlier.
7. tennis racket response according to claim 1 is characterized in that both can adopting desktop computer based on the control subjunctive mood signal analyzer ⑷ of software engineering at thread detector, also can adopt the notebook computer that has interface box.
8. tennis racket response according to claim 1 is characterized in that at thread detector remote measurement resistance-strain receiver ⑶ is installed in the computer host box and becomes one when the control subjunctive mood signal analyzer ⑷ based on software engineering adopts desktop computer.
9. tennis racket response according to claim 1 is at thread detector; It is characterized in that when the control subjunctive mood signal analyzer ⑷ based on software engineering adopts notebook computer; Remote measurement resistance-strain receiver ⑶ is installed in the interface box, is connected with notebook computer more afterwards.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210162380XA CN102657932A (en) | 2012-05-24 | 2012-05-24 | Tennis racket response online detector |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210162380XA CN102657932A (en) | 2012-05-24 | 2012-05-24 | Tennis racket response online detector |
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| CN102657932A true CN102657932A (en) | 2012-09-12 |
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| CN201210162380XA Pending CN102657932A (en) | 2012-05-24 | 2012-05-24 | Tennis racket response online detector |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103083853A (en) * | 2013-01-14 | 2013-05-08 | 西南石油大学 | On-line detecting system for pedal response |
| CN103105166A (en) * | 2013-01-25 | 2013-05-15 | 深圳市尔思电子有限公司 | Motion data processing method and system for motion practice beat |
| CN103357146A (en) * | 2013-08-04 | 2013-10-23 | 无锡同春新能源科技有限公司 | Training tennis racket |
| CN105388064A (en) * | 2015-10-29 | 2016-03-09 | 东南大学 | Device and method for measuring static rigidity of tennis racket string |
| CN105829848A (en) * | 2013-12-25 | 2016-08-03 | 索尼公司 | Analysis apparatus, recording medium, and analysis method |
| CN112891874A (en) * | 2021-01-22 | 2021-06-04 | 南阳师范学院 | Training tennis racket |
| US11607589B1 (en) | 2020-10-01 | 2023-03-21 | Mark E. Van Denend | Device for accurately measuring string bed stiffness in a racket |
Citations (5)
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|---|---|---|---|---|
| DE3822521A1 (en) * | 1988-07-04 | 1990-01-11 | Tegro Gmbh | METHOD FOR MEASURING THE QUALITY OF SPORTS RACKETS AND DEVICE |
| US5209483A (en) * | 1991-04-19 | 1993-05-11 | G&A Associates | Transducing and analyzing forces for instrumented sporting devices and the like |
| US6044704A (en) * | 1997-12-29 | 2000-04-04 | Sacher; David | Follow-through measuring device |
| CN2465745Y (en) * | 2001-03-08 | 2001-12-19 | 萧清松 | Racket capable of displaying human body sport state |
| CN201295501Y (en) * | 2008-04-15 | 2009-08-26 | 杜许峰 | Intelligent tennis racket |
-
2012
- 2012-05-24 CN CN201210162380XA patent/CN102657932A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3822521A1 (en) * | 1988-07-04 | 1990-01-11 | Tegro Gmbh | METHOD FOR MEASURING THE QUALITY OF SPORTS RACKETS AND DEVICE |
| US5209483A (en) * | 1991-04-19 | 1993-05-11 | G&A Associates | Transducing and analyzing forces for instrumented sporting devices and the like |
| US6044704A (en) * | 1997-12-29 | 2000-04-04 | Sacher; David | Follow-through measuring device |
| CN2465745Y (en) * | 2001-03-08 | 2001-12-19 | 萧清松 | Racket capable of displaying human body sport state |
| CN201295501Y (en) * | 2008-04-15 | 2009-08-26 | 杜许峰 | Intelligent tennis racket |
Non-Patent Citations (2)
| Title |
|---|
| 李丽: "基于虚拟仪器技术的应变测试系统的研究与开发", 《中国优秀硕士学位论文全文数据库信息科技辑》, no. 3, 15 March 2008 (2008-03-15) * |
| 航天部七〇二所科技处: "锤击法与激励锤", 《强度与环境》, no. 02, 1 May 1983 (1983-05-01), pages 68 - 70 * |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103083853A (en) * | 2013-01-14 | 2013-05-08 | 西南石油大学 | On-line detecting system for pedal response |
| CN103105166A (en) * | 2013-01-25 | 2013-05-15 | 深圳市尔思电子有限公司 | Motion data processing method and system for motion practice beat |
| CN103105166B (en) * | 2013-01-25 | 2014-01-15 | 深圳市尔思电子有限公司 | Motion data processing method and system for motion practice beat |
| CN103357146A (en) * | 2013-08-04 | 2013-10-23 | 无锡同春新能源科技有限公司 | Training tennis racket |
| CN105829848A (en) * | 2013-12-25 | 2016-08-03 | 索尼公司 | Analysis apparatus, recording medium, and analysis method |
| CN105388064A (en) * | 2015-10-29 | 2016-03-09 | 东南大学 | Device and method for measuring static rigidity of tennis racket string |
| CN105388064B (en) * | 2015-10-29 | 2017-11-03 | 东南大学 | Tennis pats string static rigidity measurement apparatus and method |
| US11607589B1 (en) | 2020-10-01 | 2023-03-21 | Mark E. Van Denend | Device for accurately measuring string bed stiffness in a racket |
| CN112891874A (en) * | 2021-01-22 | 2021-06-04 | 南阳师范学院 | Training tennis racket |
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Application publication date: 20120912 |