CN104359385A - Calculating method for rotation angle of vibrating head of vibrator - Google Patents
Calculating method for rotation angle of vibrating head of vibrator Download PDFInfo
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- CN104359385A CN104359385A CN201410712636.9A CN201410712636A CN104359385A CN 104359385 A CN104359385 A CN 104359385A CN 201410712636 A CN201410712636 A CN 201410712636A CN 104359385 A CN104359385 A CN 104359385A
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- vibrator
- displacement sensor
- vibrating head
- rotation
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Abstract
The invention relates to a calculating method for a rotation angle of a vibrating head of a vibrator. A technical problem to be solved is to provide a method for accurately measuring the rotation angle of the vibrating head. According to a technical scheme adopted by the invention to solve the technical problem, the calculating method for the rotation angle of the vibrating head of the vibrator comprises the following steps: fixing a pulling wire of a pulling wire displacement sensor on the vibrating head, and fixing a sensor main body of the pulling wire displacement sensor on a non-rotation part of the vibrator; measuring the diameter of the vibrating head and calculating the perimeter D of the vibrating head; after the vibrating head rotates, measuring the pulling wire movement amount L by virtue of the pulling wire displacement sensor, and outputting a length electric signal V in direct proportion with the pulling wire movement amount by virtue of the pulling wire displacement sensor; collecting the length electric signal V output by the pulling wire displacement sensor by virtue of a data acquiring processing module, converting the length electric signal V into the current rotation length of the vibrating head according to a formula (V*D)/L, and then calculating the current rotation angle sigma=(L*360 degrees)/D of the vibrating head according to the formula (L*360 degrees)/D. The calculating method for the rotation angle of the vibrating head of the vibrator, disclosed by the invention, is suitable for measuring the rotation angle of the vibrator.
Description
Technical field
The present invention relates to a kind of anglec of rotation computing method of rotating mechanism, especially relate to a kind of method adopting analog form to calculate the vibrator vibrator anglec of rotation.
Background technology
Mechanical rotating device generally all possesses rotating mechanism, and namely this equipment carries out the parts that rotate, is be attached on this rotating mechanism by sensor under normal circumstances, detects the periodic angle position of this rotating mechanism.The mode of the measurement rotating body angle of current employing mainly contains the mode such as coded system, laser sensor measurement, and these modes mainly exist the installation matching problem between vibrator, or can produce the measuring error because installation question causes.And based in the engineering application of prior art, often rotating mechanism i.e. its vibrator that there is vibrator cannot carry out the situation of external unit installation, cause the anglec of rotation cannot measuring vibrator, the vibrator operationally physical location of vibrator and direction cannot be obtained, thus cannot describe the running orbit of vibrator work exactly.
Generally speaking, the top of vibrator is its non-rotating part, and its underpart and vibrator are the rotating mechanism of vibrator.
Summary of the invention
Technical matters to be solved by this invention be to provide a kind of can the vibrator anglec of rotation computing method of vibrator of the Measurement accuracy vibrator anglec of rotation.
The technical solution adopted for the present invention to solve the technical problems is: the vibrator anglec of rotation computing method of vibrator, comprise the following steps:
A. the bracing wire of stay wire displacement sensor is fixed on the vibrator of vibrator, its sensor main body is fixed on the non-rotating portion of vibrator;
B. measure the diameter of vibrator, and calculate its girth D;
C. vibrator after rotation, and measure bracing wire amount of movement L by stay wire displacement sensor, stay wire displacement sensor exports and bracing wire amount of movement directly proportional length electric signal V;
D. digital sampling and processing collects the length electric signal V that stay wire displacement sensor exports, according to formula (V × D)/L, the length electric signal V collected is converted into the current rotation length of vibrator, again according to formula (L × 360 °)/D, calculate present rotation angel degree δ=(L × 360 °)/D of vibrator.
Concrete, described stay wire displacement sensor is LXW-5 type stay wire displacement sensor.
As the preferred version of technique scheme, before steps A, also comprise step
M. stay wire displacement sensor is corrected.
The invention has the beneficial effects as follows: the anglec of rotation that can obtain rotating mechanism rapidly and accurately, by the electric signal transmission of sensor measurement to programmable logic controller (PLC), by calculating the data obtaining the anglec of rotation, convenient and swift, reliability is high; Only need install the calculating that stay wire displacement sensor can realize the anglec of rotation on rotating mechanism, structure is simple, and reliability is high.The present invention is applicable to the anglec of rotation measuring existing rotating mechanism, is particularly useful for the rotation angle measurement of dam vibrator.
Embodiment
Below in conjunction with embodiment, describe technical scheme of the present invention in detail.
The vibrator anglec of rotation computing method of vibrator of the present invention, comprise the following steps: first, the bracing wire of stay wire displacement sensor are fixed on the vibrator of vibrator, its sensor main body are fixed on the non-rotating portion of vibrator; Measure the diameter of vibrator, and calculate its girth D; After rotation, measure bracing wire amount of movement L by stay wire displacement sensor, stay wire displacement sensor exports and bracing wire amount of movement directly proportional length electric signal V vibrator; Digital sampling and processing collects the length electric signal V that stay wire displacement sensor exports, according to formula (V × D)/L, the length electric signal V collected is converted into the current rotation length of vibrator, again according to formula (L × 360 °)/D, calculate present rotation angel degree δ=(L × 360 °)/D of vibrator.
Stay wire displacement sensor comprises bracing wire and sensor main body, general, bracing wire and testee is fixed, and when testee produces displacement or rotation amount, sensor main body can know the Length Quantity of bracing wire.In the present invention, adopt stay wire displacement sensor as signal gathering unit, the special construction being suitable for vibrator rotary body is installed, and adopts stay wire displacement sensor to convert the displacement of vibrator and bracing wire amount of movement to gageable length electric signal and analog signals.
When vibrator rotates, pull coupled bracing wire, bracing wire drives sensor main body synchronous axial system, and stay wire displacement sensor will export the length electric signal be directly proportional to bracing wire amount of movement.When vibrator reverse rotation, the automatic revolving gear of stay wire displacement sensor inside is by automatic drawing back bracing wire, and in bracing wire telescopic process, keep its tension force constant, thus export one with the length electric signal of the directly proportional analog quantity of bracing wire amount of movement, by transmission cable, this electric signal is passed to digital sampling and processing by transmission cable or wireless mode simultaneously, calculate the anglec of rotation of vibrator according to length electric signal, provide infallible data as vibrator construction conduct monitoring at all levels.
Embodiment
The vibrator anglec of rotation computing method of the vibrator of this example, comprise the following steps:
1, stay wire displacement sensor is corrected;
This step effectively can improve the measurement accuracy of the vibrator anglec of rotation.
2, the bracing wire of stay wire displacement sensor is fixed on the vibrator of vibrator, its sensor main body is fixed on the non-rotating portion of vibrator;
3, measure the diameter d of vibrator, according to formula π × d, calculate the girth D of vibrator rotating part;
4, vibrator after rotation, measured total rotation length L of bracing wire amount of movement and vibrator by stay wire displacement sensor, and stay wire displacement sensor exports and bracing wire amount of movement directly proportional length electric signal V;
5, collect as the programmable logic controller (PLC) of digital sampling and processing the length electric signal V that stay wire displacement sensor exports, by being integrated in the related software in programmable logic controller (PLC), according to formula (V × D)/L, automatically the length electric signal V collected is converted into the current rotation length of vibrator; Again according to formula (L × 360)/D, calculate present rotation angel degree δ=(L × 360)/D of vibrator.
Owing to only needing just can to calculate corresponding data according to simple formula, therefore to the related software in programmable logic controller (PLC) and no requirement (NR), as long as the computing of above-mentioned common formula can be carried out.
By above-mentioned steps, achieve the rotation length by the length electric signal of analog quantity conversion vibrator automatically, thus automatically calculate the present rotation angel degree of vibrator, for the dam quality intelligent monitoring that vibrates provides technical support.
Preferably, described stay wire displacement sensor is preferably LXW-5 type stay wire displacement sensor, and the stay wire displacement sensor of the type adopts high-accuracy sensing element, and volume is little, easy to use, good airproof performance, and measuring accuracy is high, and temperature error is little, and the life-span is long.Not only be suitable for the mechanical object displacement measurement of moving linearly, be more suitable for the displacement measurement that mechanical object moves along a curved path.The stay wire displacement sensor of the type has independent automatic line arranging mechanism, ensures pull rope automatic uniform winding displacement, ensures that this sensor has high independent linearity precision and longer serviceable life.
Claims (3)
1. the vibrator anglec of rotation computing method of vibrator, is characterized in that, comprise the following steps:
A. the bracing wire of stay wire displacement sensor is fixed on the vibrator of vibrator, its sensor main body is fixed on the non-rotating portion of vibrator;
B. measure the diameter of vibrator, and calculate its girth D;
C. vibrator after rotation, and measure bracing wire amount of movement L by stay wire displacement sensor, stay wire displacement sensor exports and bracing wire amount of movement directly proportional length electric signal V;
D. digital sampling and processing collects the length electric signal V that stay wire displacement sensor exports, according to formula (V × D)/L, the length electric signal V collected is converted into the current rotation length of vibrator, again according to formula (L × 360 °)/D, calculate present rotation angel degree δ=(L × 360 °)/D of vibrator.
2. the vibrator anglec of rotation computing method of vibrator as claimed in claim 1, it is characterized in that, described stay wire displacement sensor is LXW-5 type stay wire displacement sensor.
3. the vibrator anglec of rotation computing method of vibrator as claimed in claim 1, is characterized in that, also comprise step before steps A
M. stay wire displacement sensor is corrected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410712636.9A CN104359385A (en) | 2014-11-28 | 2014-11-28 | Calculating method for rotation angle of vibrating head of vibrator |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410712636.9A CN104359385A (en) | 2014-11-28 | 2014-11-28 | Calculating method for rotation angle of vibrating head of vibrator |
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| CN104359385A true CN104359385A (en) | 2015-02-18 |
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| CN201410712636.9A Pending CN104359385A (en) | 2014-11-28 | 2014-11-28 | Calculating method for rotation angle of vibrating head of vibrator |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105241416A (en) * | 2015-11-19 | 2016-01-13 | 湖南天雁机械有限责任公司 | Turbine volute bleed valve opening measurement device |
| CN108332704A (en) * | 2018-02-01 | 2018-07-27 | 德阳瑞能电力科技有限公司 | A kind of vibrating vehicle vibrator rotational angle measurement apparatus |
| CN110686597A (en) * | 2019-10-28 | 2020-01-14 | 中交第三航务工程局有限公司 | Three-dimensional positioning system of slant chute tube |
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| CN105241416A (en) * | 2015-11-19 | 2016-01-13 | 湖南天雁机械有限责任公司 | Turbine volute bleed valve opening measurement device |
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| CN110686597A (en) * | 2019-10-28 | 2020-01-14 | 中交第三航务工程局有限公司 | Three-dimensional positioning system of slant chute tube |
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