CN201464089U - Magnetoelasticity dynamometer - Google Patents
Magnetoelasticity dynamometer Download PDFInfo
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- CN201464089U CN201464089U CN2009200718312U CN200920071831U CN201464089U CN 201464089 U CN201464089 U CN 201464089U CN 2009200718312 U CN2009200718312 U CN 2009200718312U CN 200920071831 U CN200920071831 U CN 200920071831U CN 201464089 U CN201464089 U CN 201464089U
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- magnetoelasticity
- dynamometer
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Abstract
The utility model discloses a magnetoelasticity dynamometer, which is characterized in that an integrated core body is manufactured by utilizing iron magnetic alloy materials, a primary winding and a secondary winding which are mutually perpendicular and form 45-degree angles with external force are wound on the integral core body so as to form a magnetoelasticity dynamometry sensor, two ends of the primary winding are connected with an excitation power source with frequency of 330 Hz, output signals of the secondary winding are amplified via an amplifying unit, are rectified into direct current signals via a phase sensitive rectifying unit and are converted into digital signals through an A/D converter to perform data processing and compensation processing, and finally measurement results are displayed via a display unit. In addition, the magnetoelasticity dynamometer is equipped with alarm and control signal outputs for controlling the system. The magnetoelasticity dynamometer has the advantages that the magnetoelasticity dynamometer keeps advantages of the original elasticity dynamometry sensors, resolves problems of environment protection during manufacturing technique and damage of cut pieces during usage, prolongs service life, reduces maintenance cost, utilizes a medium-frequency excitation power source to speed up response time, and utilizes an intelligent display meter to increase properties of the integral dynamometer and bring convenience for users.
Description
Technical field
The utility model relates to a kind of dynamometer, particularly a kind of magnetoelasticity dynamometer.
Background technology
The magnetoelasticity dynamometer has simple in structure, and overload capacity is strong, and output signal is big, and antijamming capability is strong, and the advantage that can work under mal-conditions such as high temperature, high humidity, salt fog, so obtained to use widely in industries such as metallurgy, mine, railway, boats and ships.At metallurgy industry (comprising black and non-ferrous metal), the measurement that the magnetoelasticity dynamometer is applied to roll-force and tension force has almost become requisite means especially.Roll-force is an important parameter in the milling train process of metal working; in the operation of rolling, adopt measurement of rolling force; just can protect the milling equipment overload (to prevent that roll from fractureing; a roller is worth units up to a million on the large-sized rolling mills), the roll multiple operation is guaranteed in the adjusting process measure; measure the distortion of memorial archway building block; and by the thickness that is out of shape definite finished product, and research rolling mill technology parameter, the optimization of the realization operation of rolling.Tension force is another important parameter in the sheet metal strip process, in the tandem rolling unit, adopt tonometry, just can realize permanent Tension Control, guarantee product quality, prevent broken belt and heap steel, increase economic efficiency, can realize rolling with negative tolerance, save material, adjusting process parameter in view of the above realizes the optimization of the operation of rolling.Adopt the magnetoelasticity dynamometer of high-quality in industrial process is measured, very big economic benefit and social benefit to be arranged in sum.
But because the core component magnetoelasticity force cell of the magnetoelasticity dynamometer of production both at home and abroad at present and use, generally be that to adopt the multilayer siliconized plate be matrix with the iron core of the bonding composition of Chemical Felter, being wound with two on it vertically becomes the windings composition of 45 degree (to see Fig. 1 a) mutually with external force, therefore there are some shortcomings, the first is because the needs of technology, to carry out impact briquetting to superimposed siliconized plate, to carry out deburring to monolithic, pickling, the chemical adhesive bonding, therefore environment there is pollution, staff's health there is certain harm, aspect environmental protection, has certain negative effect.It two is because what adopt is the lamination adhesion technique, occurs causing the sheet phenomenon of loosing easily when some are lack of standardization in using operating process, cause sensor life-time to shorten, thereby the influence of rolled process causes to produce and pauses, and economic loss is very big.In addition, present dynamometer signal processing mostly is conventional mimic channel, and excitation power supply mostly is 50Hz, and (response time is 60ms), along with the high speed of milling train, dynamometer can not adapt to technological requirement, needs further to improve performance.(reason of undeclared incompatibility technological requirement)
Summary of the invention
The shortcoming that the utility model exists at stacked magnetoelasticity force cell, on the basis that keeps original magnetoelasticity formula force cell advantage, overcome the environmental issue in the manufacture craft of existence, diffusing sheet in the use damages problem, provides a kind of and makes solid integral core body, the field power supply frequency magnetoelasticity force cell to 330Hz and intelligent Displaying Meter by material.
The technical solution of the utility model is: a kind of magnetoelasticity dynamometer, be characterized in adopting ferrimag materials processing to be made into solid integral core body, be wound with two on it and mutually vertically become the winding of 45 degree and the force cell of Secondary Winding formation magnetoelasticity dynamometer with external force, as winding two ends of field copper and frequency is that the field power supply of 330Hz is connected, the interchange millivolt signal of described force cell Secondary Winding output amplifies through amplifying unit, become direct current signal through the phase depending on rectification unit again, converting digital signal to by A/D again is defeated by single-chip microcomputer and carries out data processing, and the compensation deals of being correlated with by software, show measurement result by digital display unit at last, band is reported to the police in addition and control signal output, so that participate in control system.
Described field power supply is a midfrequent AC power supply, adopts the RC oscillator to produce the 330Hz oscillation frequency, adopts current transformer and sampling resistor to make Current Negative Three-Point Capacitance to reach the power supply for the sensor field coil that produces the frequency stabilization constant current.
The beneficial effects of the utility model are: keep original magnetoelasticity formula force cell advantage, overcome the environmental protection in the manufacture craft of existence and use in diffusing sheet damage problem; The environmental protection of sensor production technology, easy to process, energy-saving material-saving; Improve overload capacity, the sheet phenomenon of loosing can not occur, improve serviceable life greatly, reduce maintenance cost, because the prolongation of maintenance cycle, the continuity of promotion production technology is enhanced productivity and economic benefit; Adopt the intermediate frequency field power supply, accelerate the response time, be suitable for the quick operation of rolling; Adopt intelligent Displaying Meter, improve the complete machine performance, make things convenient for the user.
Description of drawings
Fig. 1 is traditional magnetoelasticity load cell structure synoptic diagram a);
Fig. 1 b) is magnetoelasticity load cell structure synoptic diagram of the present utility model;
Fig. 2 exchanges frequency stabilization stabilized current supply block scheme for 330Hz;
Fig. 3 is a magnetoelasticity dynamometer Displaying Meter functional-block diagram.
Embodiment
A kind of magnetoelasticity dynamometer, be characterized in adopting ferrimag materials processing to be made into solid integral core body, be wound with two on it and mutually vertically become the winding of 45 degree and the force cell of Secondary Winding formation magnetoelasticity dynamometer with external force, as winding two ends of field copper and frequency is that the field power supply of 330Hz is connected, as Fig. 1 a) shown in, the interchange millivolt signal of described force cell Secondary Winding output amplifies through amplifying unit, become direct current signal through the phase depending on rectification unit again, converting digital signal to by A/D again is defeated by single-chip microcomputer and carries out data processing, and the compensation deals of being correlated with by software, show measurement result by digital display unit at last, band is reported to the police in addition and control signal output, so that the participation control system is by shown in Figure 3.
Described field power supply is a midfrequent AC power supply, adopts the RC oscillator to produce the 330Hz oscillation frequency, adopts current transformer and sampling resistor to make Current Negative Three-Point Capacitance to reach the power supply for the sensor field coil that produces the frequency stabilization constant current, and its principle is seen Fig. 2.
Claims (2)
1. magnetoelasticity dynamometer, it is characterized in that, be made into solid integral core body by ferrimag materials processing, be wound with two on it and mutually vertically become the winding of 45 degree and the force cell of Secondary Winding formation magnetoelasticity dynamometer with external force, as winding two ends of field copper and frequency is that the field power supply of 330Hz is connected, the interchange millivolt signal of described force cell Secondary Winding output amplifies through amplifying unit, become direct current signal through the phase depending on rectification unit again, converting digital signal to by A/D again is defeated by single-chip microcomputer and carries out data processing, and the compensation deals of being correlated with by software, show measurement result by digital display unit at last, band is reported to the police in addition and control signal output participates in control system.
2. magnetoelasticity dynamometer according to claim 1, it is characterized in that, described field power supply is a midfrequent AC power supply, adopt the RC oscillator to produce the 330Hz oscillation frequency, adopt current transformer and sampling resistor to make Current Negative Three-Point Capacitance to reach the power supply that produces the frequency stabilization constant current for the sensor field coil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200718312U CN201464089U (en) | 2009-05-08 | 2009-05-08 | Magnetoelasticity dynamometer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200718312U CN201464089U (en) | 2009-05-08 | 2009-05-08 | Magnetoelasticity dynamometer |
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| Publication Number | Publication Date |
|---|---|
| CN201464089U true CN201464089U (en) | 2010-05-12 |
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| CN2009200718312U Expired - Lifetime CN201464089U (en) | 2009-05-08 | 2009-05-08 | Magnetoelasticity dynamometer |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102519632A (en) * | 2011-11-02 | 2012-06-27 | 北京金自天正智能控制股份有限公司 | Novel four-hole site coil integral force transducer based on principle of piezomagnetic effect |
| CN102564659A (en) * | 2012-01-14 | 2012-07-11 | 江苏舒恒管夹制造有限公司 | Stress monitoring and early warning method and system for prestress ring of cold extrusion mold |
| WO2013078981A1 (en) * | 2011-11-30 | 2013-06-06 | 浙江大学 | Stress monitoring device of magneto-elastic and magneto-electric effect type |
| CN103439034A (en) * | 2013-09-09 | 2013-12-11 | 淮海工学院 | Multifunctional force cell sensor |
| CN110160678A (en) * | 2019-06-21 | 2019-08-23 | 上海工业自动化仪表研究院有限公司 | Power amplification circuit for magnetoelastic sensor |
| CN111446933A (en) * | 2020-05-07 | 2020-07-24 | 上海工业自动化仪表研究院有限公司 | Constant current power amplifier for magnetoelastic sensor |
-
2009
- 2009-05-08 CN CN2009200718312U patent/CN201464089U/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102519632A (en) * | 2011-11-02 | 2012-06-27 | 北京金自天正智能控制股份有限公司 | Novel four-hole site coil integral force transducer based on principle of piezomagnetic effect |
| WO2013078981A1 (en) * | 2011-11-30 | 2013-06-06 | 浙江大学 | Stress monitoring device of magneto-elastic and magneto-electric effect type |
| CN102564659A (en) * | 2012-01-14 | 2012-07-11 | 江苏舒恒管夹制造有限公司 | Stress monitoring and early warning method and system for prestress ring of cold extrusion mold |
| CN102564659B (en) * | 2012-01-14 | 2014-09-10 | 江苏舒恒管夹制造有限公司 | Stress monitoring and early warning method and system for prestress ring of cold extrusion mold |
| CN103439034A (en) * | 2013-09-09 | 2013-12-11 | 淮海工学院 | Multifunctional force cell sensor |
| CN103439034B (en) * | 2013-09-09 | 2015-05-13 | 淮海工学院 | Multifunctional force cell sensor |
| CN110160678A (en) * | 2019-06-21 | 2019-08-23 | 上海工业自动化仪表研究院有限公司 | Power amplification circuit for magnetoelastic sensor |
| CN111446933A (en) * | 2020-05-07 | 2020-07-24 | 上海工业自动化仪表研究院有限公司 | Constant current power amplifier for magnetoelastic sensor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20100512 |