CN114705232B - Infrared photoelectric rotary speed measuring system of single chip microcomputer - Google Patents
Infrared photoelectric rotary speed measuring system of single chip microcomputer Download PDFInfo
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- CN114705232B CN114705232B CN202210276943.1A CN202210276943A CN114705232B CN 114705232 B CN114705232 B CN 114705232B CN 202210276943 A CN202210276943 A CN 202210276943A CN 114705232 B CN114705232 B CN 114705232B
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- 230000001133 acceleration Effects 0.000 claims abstract description 59
- 230000005540 biological transmission Effects 0.000 claims abstract description 8
- 238000005259 measurement Methods 0.000 claims description 2
- 238000012360 testing method Methods 0.000 abstract description 6
- 238000007405 data analysis Methods 0.000 abstract description 4
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000004891 communication Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000005622 photoelectricity Effects 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
- G01D5/54—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using means specified in two or more of groups G01D5/02, G01D5/12, G01D5/26, G01D5/42, and G01D5/48
- G01D5/56—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using means specified in two or more of groups G01D5/02, G01D5/12, G01D5/26, G01D5/42, and G01D5/48 using electric or magnetic means
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D21/00—Measuring or testing not otherwise provided for
- G01D21/02—Measuring two or more variables by means not covered by a single other subclass
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/042—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
- G05B19/0428—Safety, monitoring
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
- G05B2219/20—Pc systems
- G05B2219/26—Pc applications
- G05B2219/2612—Data acquisition interface
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Centrifugal Separators (AREA)
Abstract
An infrared photoelectric rotational speed measuring system of a single chip microcomputer is used for measuring and controlling the rotational speed of a centrifugal machine and comprises the following components: the host module is arranged outside the centrifugal machine, is connected with the centrifugal machine through a data transmission line and comprises a computer and a singlechip which are connected through the data transmission line; the photoelectric module is arranged at the rotating arm of the centrifugal machine and comprises a photoelectric sensor, and the photoelectric module is in signal connection with the singlechip; and the power supply module is respectively connected with the host module and the photoelectric module and supplies power. According to the single-chip microcomputer infrared photoelectric rotating speed system, the rotating speed and the first rotating acceleration of the rotating arm of the centrifugal machine are calculated by the computer according to the counting result of the single-chip microcomputer, so that the rotating condition of the rotating arm of the centrifugal machine is monitored; furthermore, when a user inputs a required acceleration value, the optimal rotating speed of the rotating arm can be automatically obtained through data analysis of software, and the test precision is improved.
Description
[ Field of technology ]
The invention relates to the technical field of speed measurement of medical centrifuges, in particular to a single-chip microcomputer infrared photoelectric rotating speed system.
[ Background Art ]
In practice, various occasions are often encountered where rotational speed needs to be measured, especially for the rotating arms of medical centrifuges. The control of the rotational speed of the medical centrifugal machine is one of key points for improving the test precision. The rotation speed of the rotating arm of the traditional centrifugal machine is single in monitoring means, limited in precision and difficult to meet market requirements.
[ Invention ]
The invention aims to provide a singlechip infrared photoelectric rotating speed system which can automatically obtain the optimal rotating arm rotating speed and improve the test precision.
The invention aims at realizing the following technical scheme:
An infrared photoelectric rotational speed measuring system of a single chip microcomputer is used for measuring and controlling the rotational speed of a centrifugal machine and comprises the following components:
The host module is arranged outside the centrifugal machine, is connected with the centrifugal machine through a data transmission line and comprises a computer and a singlechip which are connected through the data transmission line;
the photoelectric module is arranged at the rotating arm of the centrifugal machine and comprises a photoelectric sensor, and the photoelectric module is in signal connection with the singlechip;
the power supply module is respectively connected with the host module and the photoelectric module and supplies power;
The photoelectric sensor senses a signal when the rotating arm scans and transmits the signal to the single chip microcomputer, the single chip microcomputer counts according to the signal and transmits the signal to the computer, and the computer calculates the rotating speed and the first rotating acceleration of the rotating arm of the centrifugal machine according to the counting result of the single chip microcomputer.
In one embodiment, the computer comprises a display and a memory which are connected with each other, wherein the memory records and counts the rotating speed and the first rotating acceleration information of the rotating arm in real time, and the display displays the rotating speed and the first rotating acceleration information of the rotating arm in real time.
In one embodiment, the centrifuge counts the second rotational acceleration information of the rotating arm in real time, the computer receives the second rotational acceleration information of the rotating arm transmitted by the centrifuge, and the memory records and counts the second rotational acceleration information of the rotating arm in real time.
In one embodiment, the display receives and displays the first rotational acceleration information and the second rotational acceleration information counted by the memory.
In one embodiment, the computer further comprises an arithmetic unit, wherein the arithmetic unit receives the first rotation acceleration information and the second rotation acceleration information of the rotating arm counted by the memory, and calculates the distinguishing information of the first rotation acceleration and the second rotation acceleration.
In one embodiment, the computer further comprises an input device, and the arithmetic unit receives the input acceleration value input by the input device and obtains the output rotating speed of the rotating arm according to the distinguishing information of the first rotating acceleration and the second rotating acceleration.
Compared with the prior art, the invention has the following beneficial effects: the single-chip microcomputer infrared photoelectric rotating speed system senses a signal when the rotating arm is scanned by using an infrared sensor and transmits the signal to the single-chip microcomputer, the single-chip microcomputer counts according to the signal and transmits the signal to the computer, and the computer calculates the rotating speed and the first rotating acceleration of the rotating arm of the centrifugal machine according to the counting result of the single-chip microcomputer, so that the rotating condition of the rotating arm of the centrifugal machine is monitored; furthermore, when a user inputs a required acceleration value, the optimal rotating speed of the rotating arm can be automatically obtained through data analysis of software, and the test precision is improved.
[ Description of the drawings ]
FIG. 1 is a schematic diagram of an infrared photoelectric rotating speed system of a singlechip;
FIG. 2 is a schematic diagram of the display state of the infrared photoelectric rotating speed system of the singlechip.
[ Detailed description ] of the invention
It should be noted that, without conflict, the embodiments of the present application and features of the embodiments may be combined with each other.
In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the drawings, are merely for convenience in describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the scope of the present application. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first", "a second", etc. may explicitly or implicitly include one or more such feature. In the description of the application, unless otherwise indicated, the meaning of "a plurality" is two or more.
In the description of the present application, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art in a specific case.
Referring to fig. 1-2, a single-chip microcomputer infrared photoelectric rotational speed system for measuring and controlling rotational speed of a centrifuge, comprising: host module, photoelectricity module and power module. The host module is arranged outside the centrifugal machine and used for automatically controlling the function. The host module is connected with the centrifuge through a data transmission line signal, and can comprise a computer and a singlechip which are connected through a data transmission line. The photoelectric module is arranged at the rotating arm of the centrifugal machine and is used for measuring the real-time rotating speed and the acceleration of the rotating arm, namely the first rotating acceleration. The photoelectric module comprises a photoelectric sensor, and is in signal connection with the singlechip and can be in a wired or wireless form. The power module is respectively connected with the host module and the photoelectric module and is used for supplying power to the modules. The photoelectric sensor senses signals when the rotating arm scans (every two scans are that the rotating arm rotates for one circle), the signals are transmitted to the single-chip microcomputer when received once, the single-chip microcomputer counts according to the signals and transmits the signals to the computer, and the computer calculates the rotating speed and the first rotating acceleration of the rotating arm of the centrifugal machine according to the counting result of the single-chip microcomputer.
The principle is as follows: the time interval T between the two signals can be obtained by rotating the rotating arm once every two received signals, the real-time rotating speed of the centrifugal machine can be automatically displayed on a computer end through software according to a linear speed formula v=ωr=2pi rf=2pi nr=2pi r/T of circular motion, and the real-time acceleration ω=v/r of the centrifugal machine can be obtained. The photoelectric sensor is controlled by converting the change of light intensity into the change of an electric signal. The transmitter emits light beam in target, and the receiver consists of photodiode, phototriode and photocell. Behind the receiver is a detection circuit which filters out the useful signal and applies the signal. The triangular reflecting plate can accurately return the light beam from the reflecting plate, and has high sensitivity.
In one embodiment, a computer includes a display and a memory coupled to each other. The memory records and counts the rotating speed and the first rotating acceleration information of the rotating arm in real time, and the display displays the rotating speed and the first rotating acceleration information of the rotating arm in real time so that an operator can acquire corresponding information in real time.
In one embodiment, the centrifuge counts the second rotational acceleration information of the rotating arm in real time, the computer receives the second rotational acceleration information of the rotating arm transmitted by the centrifuge, and the memory records and counts the second rotational acceleration information of the rotating arm in real time. The second rotational acceleration is the theoretical acceleration of the centrifuge at this time.
In one embodiment, the display receives and displays the first rotational acceleration information and the second rotational acceleration information counted by the memory, so that an operator can acquire corresponding information in real time.
In one embodiment, the computer further comprises an operator. The arithmetic unit receives the first rotation acceleration information and the second rotation acceleration information of the rotating arm counted by the memory, and calculates the distinguishing information of the first rotation acceleration and the second rotation acceleration. And can be distinguished from the actual acceleration by the acceleration displayed by the display.
In one embodiment, the computer further comprises an input device. The arithmetic unit receives the input acceleration value input by the input device and obtains the output rotating speed of the rotating arm according to the distinguishing information of the first rotating acceleration and the second rotating acceleration. Furthermore, when a user inputs a required acceleration value, the optimal rotating speed of the rotating arm can be automatically obtained through data analysis of software, and the test precision is improved.
Compared with the prior art, the invention has the following beneficial effects: according to the single-chip microcomputer infrared photoelectric rotating speed system, the infrared sensor is used for sensing signals when the rotating arm is scanned and transmitting the signals to the single-chip microcomputer, the single-chip microcomputer counts and transmits the signals to the computer, and the computer calculates the rotating speed and the first rotating acceleration of the rotating arm of the centrifugal machine according to the counting result of the single-chip microcomputer, so that the rotating condition of the rotating arm of the centrifugal machine is monitored; furthermore, when a user inputs a required acceleration value, the optimal rotating speed of the rotating arm can be automatically obtained through data analysis of software, and the test precision is improved.
With the above-described preferred embodiments according to the present application as a teaching, the worker skilled in the art could make various changes and modifications without departing from the scope of the technical idea of the present application. The technical scope of the present application is not limited to the contents of the specification, and must be determined according to the scope of claims.
Claims (4)
1. The utility model provides a singlechip infrared photoelectric measurement rotational speed system for measure and control centrifuge rotational speed, its characterized in that includes:
The host module is arranged outside the centrifugal machine, is connected with the centrifugal machine through a data transmission line and comprises a computer and a singlechip which are connected through the data transmission line;
the photoelectric module is arranged at the rotating arm of the centrifugal machine and comprises a photoelectric sensor, and the photoelectric module is in signal connection with the singlechip;
the power supply module is respectively connected with the host module and the photoelectric module and supplies power;
The photoelectric sensor senses a signal when the rotating arm scans and transmits the signal to the single chip microcomputer, the single chip microcomputer counts according to the signal and transmits the signal to the computer, and the computer calculates the rotating speed and the first rotating acceleration of the rotating arm of the centrifugal machine according to the counting result of the single chip microcomputer;
The centrifugal machine counts second rotation acceleration information of the rotating arm in real time, and the computer receives the second rotation acceleration information of the rotating arm transmitted by the centrifugal machine;
The computer comprises an arithmetic unit and an input device, wherein the arithmetic unit receives the first rotation acceleration information and the second rotation acceleration information of the rotating arm, calculates the distinguishing information of the first rotation acceleration and the second rotation acceleration, receives the input acceleration value input by the input device, and obtains the output rotating speed of the rotating arm according to the distinguishing information of the first rotation acceleration and the second rotation acceleration.
2. The single-chip microcomputer infrared photoelectric rotating speed system according to claim 1, wherein the computer comprises a display and a memory which are connected with each other, the memory records and counts the rotating speed and the first rotating acceleration information of the rotating arm in real time, and the display displays the rotating speed and the first rotating acceleration information of the rotating arm in real time.
3. The single-chip infrared photoelectric rotating speed system according to claim 2, wherein the memory records and counts the second rotating acceleration information of the rotating arm in real time.
4. The system of claim 3, wherein the display receives and displays the first rotational acceleration information and the second rotational acceleration information counted by the memory.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210276943.1A CN114705232B (en) | 2022-03-16 | 2022-03-16 | Infrared photoelectric rotary speed measuring system of single chip microcomputer |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210276943.1A CN114705232B (en) | 2022-03-16 | 2022-03-16 | Infrared photoelectric rotary speed measuring system of single chip microcomputer |
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| CN114705232A CN114705232A (en) | 2022-07-05 |
| CN114705232B true CN114705232B (en) | 2024-06-04 |
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| CN210243677U (en) * | 2019-05-28 | 2020-04-03 | 福建省计量科学研究院（福建省眼镜质量检验站） | Rotating speed measuring device based on photoelectric sensor |
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| CN214917133U (en) * | 2021-04-13 | 2021-11-30 | 宁波新芝生物科技股份有限公司 | Rotor identification structure of high-speed refrigerated centrifuge |
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| SU934807A1 (en) * | 1980-01-14 | 2005-07-20 | В.И. Баженов | METHOD FOR DETERMINING THE NONLINEARITY OF PENDULUM ACCELEROMETER ON THE CENTRIFUGE |
| JP2009174898A (en) * | 2008-01-22 | 2009-08-06 | Toyota Motor Corp | Moving body and environmental information generation method |
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| CN113009180A (en) * | 2021-03-11 | 2021-06-22 | 浙江大学 | Device and method capable of measuring acceleration difference values of different positions of basket of centrifugal machine |
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| CN114705232A (en) | 2022-07-05 |
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