CN106353524A - Apparatus for measuring horizontal low-speed rotational speed of object and method of using same - Google Patents
Apparatus for measuring horizontal low-speed rotational speed of object and method of using same Download PDFInfo
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- CN106353524A CN106353524A CN201610643784.9A CN201610643784A CN106353524A CN 106353524 A CN106353524 A CN 106353524A CN 201610643784 A CN201610643784 A CN 201610643784A CN 106353524 A CN106353524 A CN 106353524A
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- spring
- elastic force
- rotating speed
- horizontal direction
- bead
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
- G01P3/00—Measuring linear or angular speed; Measuring differences of linear or angular speeds
- G01P3/02—Devices characterised by the use of mechanical means
- G01P3/16—Devices characterised by the use of mechanical means by using centrifugal forces of solid masses
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Abstract
The invention discloses an apparatus for measuring horizontal low-speed rotational speed of an object and a method of using the same; the apparatus comprises a small ball, a spring, an elasticity measuring device, a position marking, a signal processing device and a signal receiving device; one end of the spring is connected with the small ball, the other end of the spring is connected with the elasticity measuring device, and the elasticity measuring device can measure elasticity of the spring; the position marking makes it convenient for a user to measure a distance from the position marking to a rotational center, and the signal receiving device converts the measured distance from the position marking to the rotational center into digital information and transmits the digital information to the signal processing device; the apparatus for measuring horizontal low-speed rotational speed of the object and the method of using the same have the advantages that actual horizontal rotational speed of the object can be accurately acquired under the action of centrifugal force, the results are precise, the rotational speed, spring elasticity, centrifugal force, centrifugal radius and ball weight information can be displayed at the signal receiving device, a computer, a cellphone or a tablet personal computer, and the apparatus is simple to operate and convenient to use.
Description
Technical field
The present invention relates to the dress of the field of Measuring Object rotating speed, specially Measuring Object low speed rotation rotating speed in the horizontal direction
Put and its using method.
Background technology
Rotating speed is the important characteristic parameters of one of energy device and dynamic power machine performance test, because dynamic power machine
Numerous characteristics have rotating speed closely related.Due to the presence of frictional force, when we set the rotating speed of an object as certain value,
And object does not reach this rotating speed in practical situation；In an experiment, the value of object rotating speed is inaccurate, frequently can lead to a small discrepancy
The a thousand li of difference, is directly connected to the success or failure of experiment.Working method according to tachometric survey can be divided into two big class, and contact rotating speed is surveyed
Amount instrument and Non-Contact Measurer of Rotational Speed table, traditional tachometric survey adopts optocoupler or Hall point machine pulse detection, exists
Rotating speed response slow, circuitry mechanical device is complicated, the shortcomings of short life price is high, and measurement result is inaccurate.
Content of the invention
It is an object of the invention to provide the Measuring Object device of low speed rotation rotating speed and its using method in the horizontal direction,
To solve the problems, such as to propose in above-mentioned background technology.
For achieving the above object, the present invention provides following technical scheme: Measuring Object low speed rotation rotating speed in the horizontal direction
Device, including bead, spring, elastic force measuring device, position mark line, signal processing apparatus and signal receiving device；Described
Spring one end connect bead, the other end connects elastic force measuring device, and described elastic force measuring device can measure spring
Elastic force, and elastic force is changed into digital information be sent to signal processing apparatus；Described position mark line is used for convenient use
The length away from center of rotation for person's measurement position mark line, the length away from center of rotation measured needs to be input to signal reception
In device, the length transition of the position mark measured line-spacing center of rotation is digital information by described signal receiving device
And it is sent to signal processing apparatus；
Described signal processing apparatus receive the digital information of the spring force that elastic force measuring device sends over and signal connects
Stored first after the digital information of length transition of position mark line-spacing center of rotation that receiving apparatus send over, Ran Houtong
Cross the rotating speed that below equation obtains moving object in the horizontal direction:
g=m*g=ft*sinα；
ft*cosα=f；
f=4π2*m*r*n2；
Wherein: ft is spring force, unit is n；
α is the angle that spring force direction is formed with horizontal direction；
F is centrifugal force, and unit is n；
G is the gravity of bead, and unit is n；
M is the quality of bead, and unit is kg；
G is acceleration of gravity, and value is 10m/s；
π is pi, and value is 3.14；
R is centrifugation radius, and unit is m；
N is rotating speed, and unit is r/s；
The rotating speed obtaining, spring force, centrifugal force and centrifugation radius and pellet quality information are deposited by described signal processing apparatus
It is sent to display on signal receiving device after storage.
Preferably, described bead is made up of stainless steel material.
Preferably, described signal processing apparatus also can transmit information on computer, mobile phone and flat board.
The device of described Measuring Object low speed rotation rotating speed in the horizontal direction, its using method is:
The first step, the device of described Measuring Object low speed rotation rotating speed in the horizontal direction is placed on the object that need to measure；
Second step, the length away from center of rotation for the measurement position mark line, and be input in signal receiving device；
3rd step, so that object is rotated in the horizontal direction, you can show in signal receiving device rotating speed, spring force,
Centrifugal force and centrifugation radius and pellet quality information.
Compared with prior art, the invention has the beneficial effects as follows: low speed rotation turns described Measuring Object in the horizontal direction
The effect by centrifugal force for the device and its using method of speed, can accurately show that object reality in the horizontal direction turns
Speed, methodological science rationally, the result drawing accurately, furthermore it is possible to by rotating speed, spring force, centrifugal force and centrifugation radius and little
Ball quality information shows on signal receiving device or computer, mobile phone and flat board, simple to operate, easy to use.
Brief description
Fig. 1 is the structural representation of the present invention；
Fig. 2 is the system structure diagram of the present invention；
Fig. 3 is the bead force diagram in the present invention.
In figure: 1, bead, 2, spring, 3, elastic force measuring device, 4, position mark line, 5, signal processing apparatus, 6, signal
Reception device.
Specific embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation description is it is clear that described embodiment is only a part of embodiment of the present invention, rather than whole embodiments.It is based on
Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under the premise of not making creative work
Embodiment, broadly falls into the scope of protection of the invention.
Embodiment 1:
Refer to Fig. 1-3, the present invention provides a kind of technical scheme: the device of Measuring Object low speed rotation rotating speed in the horizontal direction,
Including bead 1, spring 2, elastic force measuring device 3, position mark line 4, signal processing apparatus 5 and signal receiving device 6；To measure
The device of object low speed rotation rotating speed in the horizontal direction is welded on the object that need to measure；Spring 2 one end connects bead 1, another
End connects elastic force measuring device 3, and bead 1 is made up of stainless steel material, and quality is 0.05kg to prevent bead because itself sends out
Give birth to oxidation or reduction reaction and lead to self gravitation to increase or decrease, elastic force measuring device 3 can measure the elastic force ft of spring 2
=5n, and elastic force is changed into digital information be sent to signal processing apparatus 5；Position mark line 4 is used for convenient use person and measures
Length r=10m away from center of rotation for the position mark line 4, the length away from center of rotation measured needs to be input to signal reception
In device 6, signal receiving device 6 by the length transition away from center of rotation for the position mark the measured line 4 be digital information simultaneously
It is sent to signal processing apparatus 5；
Signal processing apparatus 5 receive the digital information of spring 2 elastic force and the signal reception dress that elastic force measuring device 3 sends over
Stored first after putting the digital information away from the length transition of center of rotation for the 6 position mark lines 4 sending over, then passed through
Below equation obtains the rotating speed of moving object in the horizontal direction:
g=m*g=ft*sinα；Draw sin α=0.05*10/5=0.1, and then draw the value of cos α；
ft*cosα=f；Draw f ≈ 4.975 n
f=4π2*m*r*n2；Draw n=0.25r/s；
Wherein: ft is spring 2 elastic force, unit is n；
α is the angle that spring 2 elastic force direction is formed with horizontal direction；
F is centrifugal force, and unit is n；
G is the gravity of bead 1, and unit is n；
M is the quality of bead 1, and unit is kg；
G is acceleration of gravity, and value is 10m/s；
π is pi, and value is 3.14；
R is centrifugation radius, and unit is m；
N is rotating speed, and unit is r/s；
Signal processing apparatus 5 are by after the rotating speed obtaining, spring 2 elastic force, centrifugal force and centrifugation radius and the storage of bead 1 quality information
It is sent to display on signal receiving device 6.
Embodiment 2:
Refer to Fig. 1-3, the present invention provides a kind of technical scheme: the device of Measuring Object low speed rotation rotating speed in the horizontal direction,
Including bead 1, spring 2, elastic force measuring device 3, position mark line 4, signal processing apparatus 5 and signal receiving device 6；To measure
The device of object low speed rotation rotating speed in the horizontal direction is pasted onto on the object that need to measure；Spring 2 one end connects bead 1, another
End connects elastic force measuring device 3, and bead 1 is made up of stainless steel material, and quality is 0.1kg to prevent bead because itself occurs
Oxidation or reduction reaction and lead to self gravitation to increase or decrease, elastic force measuring device 3 can measure the elastic force ft=of spring 2
2n, and elastic force is changed into digital information be sent to signal processing apparatus 5；Position mark line 4 is used for convenient use person and measures
Length r=5m away from center of rotation for the position mark line 4, the length away from center of rotation measured needs to be input to signal reception
In device 6, signal receiving device 6 by the length transition away from center of rotation for the position mark the measured line 4 be digital information simultaneously
It is sent to signal processing apparatus 5；
Signal processing apparatus 5 receive the digital information of spring 2 elastic force and the signal reception dress that elastic force measuring device 3 sends over
Stored first after putting the digital information away from the length transition of center of rotation for the 6 position mark lines 4 sending over, then passed through
Below equation obtains the rotating speed of moving object in the horizontal direction:
g=m*g=ft*sinα；Draw sin α=0.1*10/2=0.5, and then draw the value of cos α；
ft*cosα=f；Draw f ≈ 1.7 n
f=4π2*m*r*n2；Draw n=0.155r/s；
Wherein: ft is spring 2 elastic force, unit is n；
α is the angle that spring 2 elastic force direction is formed with horizontal direction；
F is centrifugal force, and unit is n；
G is the gravity of bead 1, and unit is n；
M is the quality of bead 1, and unit is kg；
G is acceleration of gravity, and value is 10m/s；
π is pi, and value is 3.14；
R is centrifugation radius, and unit is m；
N is rotating speed, and unit is r/s；
Signal processing apparatus 5 are by after the rotating speed obtaining, spring 2 elastic force, centrifugal force and centrifugation radius and the storage of bead 1 quality information
It is sent to display on computer.
Embodiment 3:
Refer to Fig. 1-3, the present invention provides a kind of technical scheme: the device of Measuring Object low speed rotation rotating speed in the horizontal direction,
Including bead 1, spring 2, elastic force measuring device 3, position mark line 4, signal processing apparatus 5 and signal receiving device 6；To measure
The device of object low speed rotation rotating speed in the horizontal direction is bundled on the object of need measurement；Spring 2 one end connects bead 1, separately
One end connects elastic force measuring device 3, and bead 1 is made up of stainless steel material, and quality is 0.2kg to prevent bead because itself sends out
Give birth to oxidation or reduction reaction and lead to self gravitation to increase or decrease, elastic force measuring device 3 can measure the elastic force ft of spring 2
=3n, and elastic force is changed into digital information be sent to signal processing apparatus 5；Position mark line 4 is used for convenient use person and measures
Length r=6m away from center of rotation for the position mark line 4, the length away from center of rotation measured needs to be input to signal reception
In device 6, signal receiving device 6 by the length transition away from center of rotation for the position mark the measured line 4 be digital information simultaneously
It is sent to signal processing apparatus 5；
Signal processing apparatus 5 receive the digital information of spring 2 elastic force and the signal reception dress that elastic force measuring device 3 sends over
Stored first after putting the digital information away from the length transition of center of rotation for the 6 position mark lines 4 sending over, then passed through
Below equation obtains the rotating speed of moving object in the horizontal direction:
g=m*g=ft*sinα；Draw sin α=0.2*10/3=0.745, and then draw the value of cos α；
ft*cosα=f；Draw f ≈ 2.236 n
f=4π2*m*r*n2；Draw n=0.217r/s；
Wherein: ft is spring 2 elastic force, unit is n；
α is the angle that spring 2 elastic force direction is formed with horizontal direction；
F is centrifugal force, and unit is n；
G is the gravity of bead 1, and unit is n；
M is the quality of bead 1, and unit is kg；
G is acceleration of gravity, and value is 10m/s；
π is pi, and value is 3.14；
R is centrifugation radius, and unit is m；
N is rotating speed, and unit is r/s；
Signal processing apparatus 5 are by after the rotating speed obtaining, spring 2 elastic force, centrifugal force and centrifugation radius and the storage of bead 1 quality information
It is sent to display on mobile phone.
The above, the only present invention preferably specific embodiment, but protection scope of the present invention is not limited thereto,
Any those familiar with the art the invention discloses technical scope in, technology according to the present invention scheme and its
Improve design in addition equivalent or change, all should cover within the scope of the present invention.
Claims (4)
1. Measuring Object in the horizontal direction low speed rotation rotating speed device it is characterised in that: include bead (1), spring (2), bullet
Force measuring device (3), position mark line (4), signal processing apparatus (5) and signal receiving device (6)；Described spring (2)
End connects bead (1), and the other end connects elastic force measuring device (3), and described elastic force measuring device (3) can measure spring
(2) elastic force, and elastic force is changed into digital information be sent to signal processing apparatus (5)；Described position mark line (4) is used
In the length away from center of rotation for convenient use person's measurement position mark line (4), the length needs away from center of rotation measured
It is input in signal receiving device (6), described signal receiving device (6) is by the position mark measured line (4) away from rotation
The length transition at center is digital information and is sent to signal processing apparatus (5)；
Described signal processing apparatus (5) receive the digital information of spring (2) elastic force that elastic force measuring device (3) sends over
After the digital information away from the length transition of center of rotation for the position mark line (4) sending over signal receiving device (6) first
Stored, then obtained the rotating speed of moving object in the horizontal direction by below equation:
g=m*g=ft*sinα；
ft*cosα=f；
f=4π2*m*r*n2；
Wherein: ft is spring (2) elastic force, unit is n；
α is the angle that spring (2) elastic force direction is formed with horizontal direction；
F is centrifugal force, and unit is n；
G is the gravity of bead (1), and unit is n；
M is the quality of bead (1), and unit is kg；
G is acceleration of gravity, and value is 10m/s；
π is pi, and value is 3.14；
R is centrifugation radius, and unit is m；
N is rotating speed, and unit is r/s；
Described signal processing apparatus (5) by the rotating speed obtaining, spring (2) elastic force, centrifugal force and are centrifuged radius and bead (1) matter
It is sent to the upper display of signal receiving device (6) after amount information Store.
2. Measuring Object according to claim 1 in the horizontal direction low speed rotation rotating speed device it is characterised in that: described
Bead (1) be made up of stainless steel material.
3. Measuring Object according to claim 1 in the horizontal direction low speed rotation rotating speed device it is characterised in that: described
Signal processing apparatus (5) also can transmit information on computer, mobile phone and flat board.
4. the device of Measuring Object according to claim 1 low speed rotation rotating speed in the horizontal direction, its using method is:
The first step, the device of described Measuring Object low speed rotation rotating speed in the horizontal direction is placed on the object that need to measure；
Second step, the length away from center of rotation for the measurement position mark line (4), and be input in signal receiving device (6)；
3rd step, object is made to rotate in the horizontal direction, you can display rotating speed, spring (2) in signal receiving device (6)
Elastic force, centrifugal force and centrifugation radius and bead (1) quality information.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610643784.9A CN106353524A (en) | 2016-08-08 | 2016-08-08 | Apparatus for measuring horizontal low-speed rotational speed of object and method of using same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610643784.9A CN106353524A (en) | 2016-08-08 | 2016-08-08 | Apparatus for measuring horizontal low-speed rotational speed of object and method of using same |
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| Publication Number | Publication Date |
|---|---|
| CN106353524A true CN106353524A (en) | 2017-01-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610643784.9A Pending CN106353524A (en) | 2016-08-08 | 2016-08-08 | Apparatus for measuring horizontal low-speed rotational speed of object and method of using same |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107525948A (en) * | 2017-09-11 | 2017-12-29 | 浙江大学 | Contact-type frictional generating acceleration transducer |
| CN108019198A (en) * | 2017-12-04 | 2018-05-11 | 李建南 | A kind of drilling machine for automatically adjusting driving force |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203786141U (en) * | 2014-03-27 | 2014-08-20 | 国家纳米科学中心 | Self-driven rotating speed sensing device based on friction electric generator |
| CN205229175U (en) * | 2015-12-23 | 2016-05-11 | 福州海恒水务设备有限公司 | Centrifugal rotational speed analyzer |
| CN106226548A (en) * | 2016-08-05 | 2016-12-14 | 安庆庆荣企业管理咨询有限责任公司 | The device of horizontal low speed rotation rotating speed is measured based on cloud computing |
-
2016
- 2016-08-08 CN CN201610643784.9A patent/CN106353524A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203786141U (en) * | 2014-03-27 | 2014-08-20 | 国家纳米科学中心 | Self-driven rotating speed sensing device based on friction electric generator |
| CN205229175U (en) * | 2015-12-23 | 2016-05-11 | 福州海恒水务设备有限公司 | Centrifugal rotational speed analyzer |
| CN106226548A (en) * | 2016-08-05 | 2016-12-14 | 安庆庆荣企业管理咨询有限责任公司 | The device of horizontal low speed rotation rotating speed is measured based on cloud computing |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107525948A (en) * | 2017-09-11 | 2017-12-29 | 浙江大学 | Contact-type frictional generating acceleration transducer |
| CN108019198A (en) * | 2017-12-04 | 2018-05-11 | 李建南 | A kind of drilling machine for automatically adjusting driving force |
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Application publication date: 20170125 |
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