CN103884461A - Tension measuring device of tensile machine - Google Patents
Tension measuring device of tensile machine Download PDFInfo
- Publication number
- CN103884461A CN103884461A CN201210563527.6A CN201210563527A CN103884461A CN 103884461 A CN103884461 A CN 103884461A CN 201210563527 A CN201210563527 A CN 201210563527A CN 103884461 A CN103884461 A CN 103884461A
- Authority
- CN
- China
- Prior art keywords
- chip
- chip microcomputer
- signal
- measuring device
- puller system
- 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 discloses a tension measuring device of a tensile machine, and belongs to the technical field of measuring. The tension measuring device comprises an electric measurement sensor, a signal adjustment circuit, an A/D conversion circuit and a single-chip microcomputer. The electric measurement sensor is installed on the tensile machine; when a force is applied to the electric measurement sensor, the voltages in the electric measurement sensor change, the voltages are sent to a signal holding circuit through signals; after analogue/digital chip conversion, measured signals are converted to digital voltage signals; the measured signals are acquired in real time, and the single-chip microcomputer analyzes and processes the acquired signals so as to measure the size of the force borne by the sensor; and the single-chip microcomputer is connected with a computer. According to the invention, an electric measurement sensor is installed on a tensile machine, tension signals are converted to voltage signals, tension is automatically measured through a signal adjustment circuit, an A/D conversion circuit and a single-chip microcomputer, and display is carried out by use of a computer such that the tension value of the tensile machine is automatically measured, and tension value measured by use of the device is of quite high precision.
Description
Technical field
The invention belongs to field of measuring technique, particularly a kind of device that the pulling force of puller system is measured.
Background technology
Puller system is in being commonly used in product quality inspection, production run quality control, the test of material science research and teaching of various types of materials, its principle of work is, by puller system, measured piece is ceaselessly applied to pulling force, the pulling force that measured piece bears is increased gradually, disconnect until value of thrust arrives the limit of bearing of measured piece.As: when the cable of welding is carried out to tensile test, puller system is constantly afterburning, until disconnect, if scolding tin first disconnects, illustrates that the load ability of pad is not as cable; Otherwise, if the inner core of cable first disconnects, reliable welding quality.As: when the mechanics reliability of gluing two parts that connect is tested, two parts are imposed respectively to rightabout pulling force, constantly increase pulling force until thoroughly disconnect, the pulling force that disconnects moment represents the viscosity of this glue.Puller system need be measured the value of thrust in process of the test as conventional plant equipment, in the prior art, the pulling force of puller system is measured main by the situation of change of mechanical type instrument measurement pulling force.But adopt the measurement mechanism precision of mechanical type instrument low, and can not make record to the situation of change of pulling force.
At present, domesticly had tens thousand of all kinds of puller systems, wherein most of puller system is all traditional mechanical measurement mode, and measuring accuracy is low, inconvenient operation, cannot meet some specific needs, thereby the robotization of the test of being far from being.Though part puller system has electrical measurement ability or is furnished with computing machine, because of it is backward in technique or through move for many years work unreliable, the state in paralysis or semiparalysis even.The Ministry of Science and Technology points out in the long-range objectives to the year 2010 target outline of scientific research condition: " wanting the main upgrading to existing instrument; to broad covered area; the domestic instrument of having grasped gordian technique will be transformed dribs and drabs, gives full play to and excavate the effect of existing resource ".Country pays much attention to making full use of existing resource as can be seen here.
Summary of the invention
For solving in prior art, the pulling force of puller system is measured to the low technical matters of precision that employing mechanical type instrument causes, the invention provides a kind of tension measuring device that can accurately, automatically measure the value of thrust that puller system exports.
The tension measuring device of puller system, comprise electrometric sensor, signal adjustment circuit, A/D change-over circuit, single-chip microcomputer, it is characterized in that: electrometric sensor is arranged on puller system, in the time being applied to effectively on electrometric sensor, voltage in electrometric sensor will change, voltage is transformed to small voltage signal through signal conditioner and after amplifying, gives signal holding circuit again, after mould/number turns chip and changes, makes measured signal become digital voltage signal; Under the control of single-chip microcomputer micro control system, measured signal is carried out to real-time collection, single-chip microcomputer is to the signal-obtaining measurement result collecting and carry out necessary analyzing and processing, thereby measures the size of institute's holding capacity on sensor, and single-chip microcomputer is connected with computing machine by communication chip.
The present invention by installing electrometric sensor on puller system, pulling force signal is converted to voltage signal, automatic measurement by signal adjustment circuit, A/D change-over circuit, chip microcontroller pulling force also utilizes computing machine to show, realize the value of thrust of puller system has been measured automatically, and there is higher precision by the value of thrust of this measurement device.
Accompanying drawing explanation
Drawing of the present invention is described as follows:
Fig. 1: the tension measuring device fundamental diagram of puller system;
Fig. 2: the tension measuring device circuit diagram of puller system;
In figure: 1. puller system 2. electrometric sensor 3. signal adjustment circuit 4.A/D change-over circuit 5. single-chip microcomputer 6. microcontroller power supply 7. computing machine 8. printer 9. amplifying circuit 10. follower 11. latch 12. signal retainer 13.A/D conversion chip 14. communication chips.
Embodiment
Below in conjunction with accompanying drawing, that the present invention is further illustrated is as follows:
The tension measuring device of puller system, comprise electrometric sensor 2, signal adjustment circuit 3, A/D change-over circuit 4, single-chip microcomputer 5, computing machine 7, communication chip 14, it is characterized in that: electrometric sensor 2 is arranged on puller system 1, in the time being applied to effectively on electrometric sensor 2, voltage in electrometric sensor 2 will change, in signal adjustment circuit 3, small voltage signal is given signal retainer 12 through amplifying, crossing A/D change-over circuit 4 carries out, after mould/number conversion, making measured signal become digital voltage signal; Through under the control of single-chip microcomputer 5 micro control systems, measured signal is carried out to real-time collection afterwards; Single-chip microcomputer 5 reads the number of accepting and believing and data is reduced to pulling force numerical value, and single-chip microcomputer 5 is connected with computing machine 7 by communication chip, and the working power of single-chip microcomputer is provided by microcontroller power supply 6; Computing machine 7 is for storage and analyze value of thrust.
More directly perceived for result is shown, the P1 series port of described single-chip microcomputer output is connected with LCDs respectively.For the pulling force that puller system provided is shown intuitively.
The output port of described computing machine can be connected with printer 8, the storage for printout computing machine to value of thrust and analysis result.
Described single-chip microcomputer is selected 89C51, also comprises its peripheral crystal oscillator 1, and electric capacity, resistance, 74LS373 are as its peripheral cell.
Above-mentioned signal adjustment circuit 3 comprises amplifying circuit 9, follower 10, signal retainer 12, selects the components and parts of OPA2111 chip and back work thereof as amplifying circuit; The output of OPA2111 is connected respectively with the input of chip I NA105, and signal enters chip AD582 after the signal of chip I NA105 is followed, and makes to remain unchanged in sampling moment from the signal of OPA2111 chip.
When selecting 12 or more when the A/D conversion chip of seniority, can improve the precision of measurement.But can not carry out Direct Communication with single-chip microcomputer because of the data that exceed after the conversion of 8, the present invention has also designed latch 11 between A/D conversion chip and single-chip microcomputer, guarantee to import into smoothly in single-chip microcomputer higher than the data of 8.
A/D conversion chip 13 in A/D change-over circuit selects AD574 cake core for signal is carried out to analog to digital conversion.
Claims (7)
1. the tension measuring device of puller system, comprise electrometric sensor (2), signal adjustment circuit (3), A/D change-over circuit (4), single-chip microcomputer (5), computing machine (7), communication chip (14), it is characterized in that: electrometric sensor (2) is arranged on puller system (1), in the time being applied to effectively on electrometric sensor (2), voltage in electrometric sensor (2) will change, in signal adjustment circuit (3), small voltage signal is given signal retainer (12) through amplifying, crossing A/D change-over circuit (4) carries out after mould/number conversion, make measured signal become digital voltage signal, through under the control of single-chip microcomputer (5) micro control system, measured signal is carried out to real-time collection afterwards, single-chip microcomputer (5) reads the number of accepting and believing and data is reduced to pulling force numerical value, and single-chip microcomputer (5) is connected with computing machine (7) by communication chip, and the working power of single-chip microcomputer is provided by microcontroller power supply (6), computing machine (7) is for storage and analyze value of thrust.
2. the tension measuring device of puller system according to claim 1, is characterized in that: the P1 series port of described single-chip microcomputer output is connected with LCDs respectively.
3. the tension measuring device of puller system according to claim 1, is characterized in that: the output port of described computing machine can be connected with printer (8).
4. the tension measuring device of puller system according to claim 1, is characterized in that: described single-chip microcomputer (5) is selected 89C51, also comprises the crystal oscillator that it is peripheral, and electric capacity, resistance, 74LS373 are as its peripheral cell.
5. the tension measuring device of puller system according to claim 1, it is characterized in that: described signal adjustment circuit (3) comprises amplifying circuit (9), follower (10), signal retainer (12), select the components and parts of OPA2111 chip and back work thereof as amplifying circuit (9); The output of OPA2111 is connected respectively with the input of chip I NA105, and signal enters chip AD582 after the signal of chip I NA105 is followed.
6. the tension measuring device of puller system according to claim 1, it is characterized in that: when selecting 12 or more when the A/D conversion chip of seniority, also between A/D conversion chip (13) and single-chip microcomputer, design latch (11), guaranteed to import into smoothly in single-chip microcomputer higher than the data of 8.
7. the tension measuring device of puller system according to claim 1, is characterized in that: the A/D conversion chip (13) in A/D change-over circuit (4) selects AD574 cake core for signal is carried out to analog to digital conversion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210563527.6A CN103884461A (en) | 2012-12-22 | 2012-12-22 | Tension measuring device of tensile machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210563527.6A CN103884461A (en) | 2012-12-22 | 2012-12-22 | Tension measuring device of tensile machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103884461A true CN103884461A (en) | 2014-06-25 |
Family
ID=50953480
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210563527.6A Pending CN103884461A (en) | 2012-12-22 | 2012-12-22 | Tension measuring device of tensile machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103884461A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105241597A (en) * | 2015-09-29 | 2016-01-13 | 北京航天发射技术研究所 | Large-tonnage high-precision platform force measuring system and force measuring method |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2555202Y (en) * | 2002-07-12 | 2003-06-11 | 周申生 | Manual braking force tester for stopping car |
| CN2586148Y (en) * | 2002-09-27 | 2003-11-12 | 国营东方仪器厂 | Digital displaying push-and-pull tensiometer |
| CN1749718A (en) * | 2005-02-06 | 2006-03-22 | 中华人民共和国南通出入境检验检疫局 | Detecting instrument for monitoring strand tension in steel wire rope production |
| CN101470032A (en) * | 2007-12-26 | 2009-07-01 | 上海天和制药机械有限公司 | Precise preforming force measuring apparatus |
| CN102519640A (en) * | 2011-11-21 | 2012-06-27 | 西华师范大学 | Tester and testing method for testing pull and rotating speed of motor of minitype unmanned aerial vehicle |
| CN102680155A (en) * | 2012-06-11 | 2012-09-19 | 中国矿业大学 | Stress and vibration measurement device for rotary machine |
-
2012
- 2012-12-22 CN CN201210563527.6A patent/CN103884461A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2555202Y (en) * | 2002-07-12 | 2003-06-11 | 周申生 | Manual braking force tester for stopping car |
| CN2586148Y (en) * | 2002-09-27 | 2003-11-12 | 国营东方仪器厂 | Digital displaying push-and-pull tensiometer |
| CN1749718A (en) * | 2005-02-06 | 2006-03-22 | 中华人民共和国南通出入境检验检疫局 | Detecting instrument for monitoring strand tension in steel wire rope production |
| CN101470032A (en) * | 2007-12-26 | 2009-07-01 | 上海天和制药机械有限公司 | Precise preforming force measuring apparatus |
| CN102519640A (en) * | 2011-11-21 | 2012-06-27 | 西华师范大学 | Tester and testing method for testing pull and rotating speed of motor of minitype unmanned aerial vehicle |
| CN102680155A (en) * | 2012-06-11 | 2012-09-19 | 中国矿业大学 | Stress and vibration measurement device for rotary machine |
Non-Patent Citations (1)
| Title |
|---|
| 倪志莲: "《单片机应用技术教程》", 30 June 2007 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105241597A (en) * | 2015-09-29 | 2016-01-13 | 北京航天发射技术研究所 | Large-tonnage high-precision platform force measuring system and force measuring method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101625383A (en) | On-line monitoring device for power quality | |
| CN202008519U (en) | Test device | |
| CN103257277B (en) | Multifunctional virtual instrument based on constant flow source and control method | |
| CN102253287A (en) | LABview-based method for measuring temperature-resistivity | |
| CN203025340U (en) | Test fixture detecting system | |
| CN103364629A (en) | Energy consumption measuring method and energy consumption measuring system of electronic equipment | |
| CN103532550A (en) | Current frequency converter test method based on virtual instrument | |
| CN208861171U (en) | The circuit structure of synchronous acquisition protective device whole phasor | |
| CN103852002A (en) | Portable low-power-consumption static resistance strain indicator | |
| CN201548682U (en) | Three-phase impact performance load power signal source device | |
| CN205015451U (en) | Graphite contact circuit breaker composite characteristic tester | |
| CN203719620U (en) | Portable low-power static state resistance strain gauge | |
| CN204679622U (en) | With the three-phase intelligent electric-energy meter communication interface load capacity proving installation of communication module | |
| CN201107295Y (en) | Portable twin channel electrochemistry analytical equipment | |
| CN100588962C (en) | A kind of portable two-channel electrochemical analysing equipment | |
| CN103884461A (en) | Tension measuring device of tensile machine | |
| CN202351393U (en) | Automatic test device for general input/output parameters of integrated circuit | |
| CN202126306U (en) | Automatic reading and data commutation device of electronic balance | |
| CN204405739U (en) | Automatic on-line resistance measuring system | |
| CN103048928B (en) | A kind of observing and controlling cabinet and road detection system | |
| CN201637838U (en) | Radar power-supply testing system based on GPIB interface control | |
| CN200990158Y (en) | Intelligent digital experimental apparatus | |
| CN104090153A (en) | Detection system and detection method of liquid crystal module multi-channel power supply | |
| CN204085564U (en) | Based on the Temperature and Humidity instrument of Arduino | |
| CN203072169U (en) | Wireless communication module performance evaluation tool with high reliability |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140625 |
|
| WD01 | Invention patent application deemed withdrawn after publication |