CN212458727U - Spring dynamometer and spring dynamometer teaching data acquisition system - Google Patents
Spring dynamometer and spring dynamometer teaching data acquisition system Download PDFInfo
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- CN212458727U CN212458727U CN202021959212.XU CN202021959212U CN212458727U CN 212458727 U CN212458727 U CN 212458727U CN 202021959212 U CN202021959212 U CN 202021959212U CN 212458727 U CN212458727 U CN 212458727U
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Abstract
The utility model discloses a spring dynamometer and spring dynamometer teaching data acquisition system, spring dynamometer include the dynamometer body that comprises casing, calibrated scale, pointer, spring, couple, still include: the acquisition part is used for acquiring the measurement force data of the dynamometer body and sending data information to an upper computer; and the power supply unit is electrically connected with the acquisition part and is used for supplying power for the work of the acquisition part. The acquisition part comprises an acquisition unit and a signal transmission unit; the acquisition unit is used for acquiring the measurement force data of the dynamometer body and transmitting data information to the signal transmission unit, and the signal transmission unit is used for sending the data to an upper computer. The utility model discloses the advantage lies in through the collection portion, can gather in real time and take notes the in service behavior of experiment teaching student to the spring dynamometer and student's experimental action to carry out later stage analysis to the data of gathering, appraise every student's experiment operation process.
Description
Technical Field
The utility model relates to a teaching instrument especially relates to a spring dynamometer, the utility model discloses still relate to a spring dynamometer teaching data acquisition system.
Background
Physics, chemistry and biology are courses based on experiments, and experimental teaching has important significance for the understanding ability, theoretical mastering ability and experimental ability cultivation of students. The teaching targets of physics, chemistry and biology comprise two fields of cognition and operation, more teaching problems are researched in the cognitive field, and less research is conducted in the experimental operation skill field. The objective of experiment teaching examination is to examine the operation skills and teaching results, find problems, continuously improve the problems and achieve the purpose of further improving the teaching quality.
The spring dynamometer is a commonly used experimental instrument in middle school physics, chemistry and primary school scientific experiments, and when the traditional teaching experimental instrument is adopted for experimental teaching, as more students and fewer teachers are involved, a teacher can only judge the experimental operation action and the mastering condition of the process of students by observing the operation process and the result of individual students, the whole experimental operation process of a single student cannot be completely observed, guided and judged, and the accurate judgment can not be made on the learning condition of all students. Whether students can master operation skills, understand subject knowledge and carry out practical application or not is judged accurately only by judging whether the steps of the whole experiment operation process are scientific or not and whether the actions are standardized or not and combining correct experiment results.
Disclosure of Invention
An object of the utility model is to provide a spring dynamometer, the utility model discloses still provide a spring dynamometer teaching data acquisition system.
In order to achieve the above purpose, the utility model can adopt the following technical proposal:
spring dynamometer, include the dynamometer body that comprises casing, calibrated scale, pointer, spring, couple, still include:
the acquisition part is used for acquiring the measurement force data of the dynamometer body and sending data information to an upper computer;
and the power supply unit is electrically connected with the acquisition part and is used for supplying power for the work of the acquisition part.
The acquisition part comprises an acquisition unit and a signal transmission unit;
the acquisition unit is used for acquiring the measurement force data of the dynamometer body and transmitting data information to the signal transmission unit, and the signal transmission unit is used for sending the data to an upper computer.
Preferably, the acquisition unit is a tension sensor, the signal transmission unit comprises a single chip microcomputer, and an analog signal input interface of the single chip microcomputer is used for receiving a tension data signal of the tension sensor through an analog signal amplification processing unit; the data communication interface of the singlechip is connected with a wireless transmitting module and used for transmitting the data signal to an upper computer.
Preferably, the acquisition part is a wireless force sensor, and the wireless force sensor is arranged between the spring and the shell or between the hook and the spring and is used for measuring the tension of the spring; the wireless force sensor is internally provided with a timer and a wireless signal transmitter, and when the time for sensing the tension value to be unchanged by the timer is consistent with the preset time, the wireless signal transmitter wirelessly transmits a measurement force value signal to an upper computer.
Preferably, the acquisition unit is a camera and is used for acquiring the position of the pointer.
Preferably, the acquisition unit is an infrared emission device, a laser ranging device or a grating ruler arranged on the pointer.
Preferably, the dynamometer further comprises an inclination angle sensor or a vertical Hall sensor, wherein the inclination angle sensor or the vertical Hall sensor collects inclination angle data of the dynamometer body and sends data information to the signal transmission unit.
Preferably, the power supply unit is a battery or an external power supply.
A spring dynamometer teaching data collection system, comprising:
the data analysis unit comprises an upper computer, a receiving module and a storage module;
a data acquisition unit comprising a plurality of said spring load cells;
the spring dynamometer comprises a receiving module, a storage module and a plurality of spring dynamometers, wherein the data information of the spring dynamometers is transmitted to the receiving module in a wireless or wired mode respectively, the receiving module sends the data information to an upper computer, and the upper computer analyzes and processes the data information and then sends the data information to the storage module for storage.
Preferably, the system further comprises a display screen, and the display screen is used for calling and displaying the experimental data stored by the upper computer.
The utility model discloses the advantage lies in through the collection portion, can gather in real time and take notes the in service behavior of experiment teaching student to the spring dynamometer and student's experimental action to carry out later stage analysis to the data of gathering, appraise every student's experiment operation process. Meanwhile, big data analysis can be carried out on the problems reflected by a plurality of students in the daily experiment operation process, the students in classes, schools and even the whole area are judged to evaluate the mastering condition of the chemical experiment operation skills and the teaching result according to the analysis result, and common problems and weak links are found out, so that the teaching method is improved and promoted, and the teaching quality is further improved.
Drawings
Fig. 1 is a schematic structural diagram of embodiment 1 of the present invention.
Fig. 2 is a partially cut-away schematic view of fig. 1.
Fig. 3 is a schematic block circuit diagram of the present invention.
Fig. 4 is another schematic block circuit diagram of the present invention.
Fig. 5 is a schematic structural view of embodiment 2 of the present invention.
Fig. 6 is a schematic structural view of embodiment 3 of the present invention.
Fig. 7 is a schematic block circuit diagram according to embodiment 4 of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention. It should be noted that all the directional indicators (such as upper, lower, left, right, front and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indicator is changed accordingly. In the present application, unless expressly stated or limited otherwise, the terms "connected" and "fixed" are to be construed broadly, e.g., "fixed" may be fixedly connected or detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
In addition, the meaning of "and/or" appearing throughout is to include three juxtapositions, exemplified by "A and/or B," including either the A or B arrangement, or both A and B satisfied arrangement. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.
Example 1:
as shown in fig. 1 and 2, the spring dynamometer of the present invention includes a dynamometer body composed of a housing 10, a dial 20, a pointer 30, a spring 40, and a hook 50, and further includes:
the acquisition part 60 is used for acquiring the measurement force data of the dynamometer body and sending the data information to the upper computer;
the power supply unit is electrically connected with the acquisition part 60 and used for supplying power for the work of the acquisition part 60;
the acquisition part 60 includes an acquisition unit 610 and a signal transmission unit 620;
as shown in fig. 3, the collecting unit 610 is a tension sensor, the signal transmission unit 620 includes a single chip, and an analog signal input interface of the single chip is used for receiving a tension data signal of the tension sensor through the analog signal amplification processing unit; the data communication interface of the singlechip is connected with a wireless transmitting module and used for transmitting a data signal to an upper computer;
as shown in fig. 4, the collecting unit 60 may also be a wireless force sensor, which is fixedly connected between the spring 40 and the housing 10 (or between the hook 50 and the spring 40) for measuring the tension of the spring 40; the wireless force sensor is selected to be Langwei DISlabV7.0, a timer and a wireless signal transmitter are arranged in the Langwei DISlabV7.0, the wireless force sensor can convert the pulling force into a digital signal, and when the built-in timer senses that the pulling force is not changed any longer for 5 seconds, the digital signal is wirelessly transmitted to an upper computer; the power supply unit is a battery, and the battery is arranged in the casing 10 or arranged in the wireless force sensor to supply power for the operation of the acquisition part 60.
The experimental requirements for the spring dynamometer are: students use a spring dynamometer to measure force magnitude values through readings of the spring dynamometer pointer 30 on the dial 20.
The function of this device is: through setting up tension sensor or wireless force sensor and spring 40 series connection, the numerical value of perception spring dynamometer measurement power size to transmit numerical value to the host computer, whether for judge the student correctly master the application method of spring dynamometer.
When the spring dynamometer is used, a student holds the spring dynamometer, hangs the fixed counterweight on the hook 50 according to teaching requirements, and visually observes the reading of the pointer 30 on the dial 20; at this moment, the wireless force sensor perception spring's pulling force size, when the pulling force size is no longer changed for 5 seconds, acquiesce that the student has operated and has accomplished, send digital signal wireless this moment to the host computer for gather the data of spring dynamometer in the experimentation, the host computer received data, the system carries out computational analysis to the data of gathering through standardized algorithm, judges whether the action of student in the operation action of experimentation is normal, whether the order is correct, whether can really master, understand subject knowledge and carry out the practice and use. The evaluation conclusion can be fed back to the teacher and the students in real time, so that the students can correct errors in time or can make targeted supplementary learning under the guidance of the teacher. The problem that a plurality of students reflected in the daily experiment operation process can carry out big data analysis through this system, judge student of class, school and even whole area according to the analysis result and grasp the evaluation of condition and teaching result to the chemical experiment operating skill, find general problem and weak link to improve and promote the teaching method, further improve teaching quality.
Example 2: as shown in fig. 4 and 5, the spring dynamometer of the present invention includes a dynamometer body composed of a housing 10, a dial 20, a pointer 30, a spring and a hook 50, and further includes:
the acquisition part 60 is used for acquiring the measurement force data of the dynamometer body and sending the data information to the upper computer;
the power supply unit is electrically connected with the acquisition part 60 and used for supplying power for the work of the acquisition part 60;
the acquisition part 60 includes an acquisition unit 610 and a signal transmission unit 620;
the acquisition unit 610 is used for acquiring measurement force data of the dynamometer body and transmitting data information to the signal transmission unit 620, and the signal transmission unit 620 is used for sending the data to an upper computer;
the acquisition unit 610 is a camera for acquiring the position of the pointer 30, and the signal transmission unit 620 is a wireless transmission module or a data line in communication connection with an upper computer; the camera aims at the spring dynamometer on the laboratory bench, gathers the image of student when the operation and sends for the host computer storage, and the host computer judges pointer 30 reading with figure recognition's mode to corresponding numerical value that reachs the measuring force size.
The experimental requirements for the spring dynamometer are: students use a spring dynamometer to measure force magnitude values through readings of the spring dynamometer pointer 30 on the dial 20.
The function of this device is: through setting up the camera, gather the image of student when the operation and send for host computer storage, the host computer judges pointer 30 reading with figure identification's mode to corresponding numerical value that reachs the measuring force size is used for judging whether the student correctly masters the application method of spring dynamometer.
Example 3: as shown in fig. 6, the spring dynamometer of the present invention includes a dynamometer body composed of a housing 10, a dial 20, a pointer 30, a spring, and a hook 50, and further includes:
the acquisition part 60 is used for acquiring the measurement force data of the dynamometer body and sending the data information to the upper computer;
the power supply unit is electrically connected with the acquisition part 60 and used for supplying power for the work of the acquisition part 60;
the acquisition part 60 includes an acquisition unit 610 and a signal transmission unit 620;
as shown in fig. 3, the signal transmission unit 620 includes a single chip, and an analog signal input interface of the single chip is used for receiving a data signal of the acquisition unit 610 through an analog signal amplification processing unit; the data communication interface of the singlechip is connected with a wireless transmitting module and used for transmitting a data signal to an upper computer;
preferably, the acquisition unit 610 is an infrared emission device (which may also be a laser distance measurement device or a grating ruler, which is not described in detail in this embodiment) disposed on the pointer 30, and the infrared emission device aligns an emission head with the top or the bottom of the housing 10, and is configured to acquire distance information from the pointer 30 to the top or the bottom of the housing 10 during the test, and send the distance information to the signal transmission unit 620 through a connection wire;
preferably, the device further comprises an inclination angle sensor (or a vertical hall sensor), the inclination angle sensor is arranged in the shell 10, collects inclination angle data of the dynamometer body, and sends the data information to the signal transmission unit 620 through a connecting wire;
the power supply unit is a battery, and the battery is arranged in the shell 10 and supplies power for the operation of the acquisition part 60.
The experimental requirements for the spring dynamometer are: students use a spring dynamometer to measure force magnitude values through readings of the spring dynamometer pointer 30 on the dial 20.
The function of this device is: through setting up infrared emitter on pointer 30, the numerical value of perception spring dynamometer pointer 30 position change, whether gather the student through inclination sensor and keep level and perpendicular with the spring dynamometer when experimental to transmit numerical value to the host computer, whether be used for judging the student and correctly mastered the application method of spring dynamometer.
When the spring dynamometer is used, a student holds the spring dynamometer, hangs the fixed counterweight on the hook 50 according to teaching requirements, and visually observes the reading of the pointer 30 on the dial 20; at this moment, infrared emission device gathers the distance change of pointer 30, when pointer 30 distance no longer changes for 5 seconds, acquiesce for the student and has operated the completion, send digital signal wireless this moment to the host computer for gather the data of spring dynamometer in the experimentation, the host computer received data, the system carries out computational analysis to the data of gathering through standardized algorithm, judge whether the action of student at the operation action of experimentation is normal, the order is correct, whether can really master, understand subject knowledge and carry out the practice and use. The evaluation conclusion can be fed back to the teacher and the students in real time, so that the students can correct errors in time or can make targeted supplementary learning under the guidance of the teacher. The problem that a plurality of students reflected in the daily experiment operation process can carry out big data analysis through this system, judge student of class, school and even whole area according to the analysis result and grasp the evaluation of condition and teaching result to the chemical experiment operating skill, find general problem and weak link to improve and promote the teaching method, further improve teaching quality.
Example 4:
as shown in fig. 7, spring dynamometer teaching data acquisition system, include:
the data analysis unit 70 comprises an upper computer, a receiving module and a storage module;
a data acquisition unit 80, the data acquisition unit 80 comprising a plurality of spring load cells;
the display screen is used for calling and displaying the experimental data stored by the upper computer;
the data information of the spring forcemeters is transmitted to the receiving module in a wireless or wired mode respectively, the receiving module sends the data information to the upper computer, and the upper computer analyzes and processes the data information and then sends the data information to the storage module for storage and sends the data information to the display screen for display.
The receiving module can be set as follows according to actual requirements: a wired receiving port, a wireless receiving module and/or a Bluetooth module.
After receiving the data information of the spring dynamometers, the upper computer carries out calculation and analysis on the collected data through a standardized algorithm according to professional data analysis software designed according to experimental requirements, and judges whether the actions of the operation actions of the students in the experimental process are standard and whether the sequence is correct, and whether the students can really master and understand subject knowledge and carry out practical application. The evaluation conclusion can be fed back to the teacher and the students in real time through the display screen, so that the students can correct errors in time, or the students can make targeted supplementary learning under the guidance of the teacher. The problem that a plurality of students reflected in the daily experiment operation process can carry out big data analysis through this system, judge student of class, school and even whole area according to the analysis result and grasp the evaluation of condition and teaching result to the chemical experiment operating skill, find general problem and weak link to improve and promote the teaching method, further improve teaching quality.
Claims (10)
1. The utility model provides a spring dynamometer, includes the dynamometer body that comprises casing, calibrated scale, pointer, spring, couple, characterized by still includes:
the acquisition part is used for acquiring the measurement force data of the dynamometer body and sending data information to an upper computer;
and the power supply unit is electrically connected with the acquisition part and is used for supplying power for the work of the acquisition part.
2. A spring dynamometer according to claim 1, characterized by: the acquisition part comprises an acquisition unit and a signal transmission unit;
the acquisition unit is used for acquiring the measurement force data of the dynamometer body and transmitting data information to the signal transmission unit, and the signal transmission unit is used for sending the data to an upper computer.
3. A spring dynamometer according to claim 2, characterized by: the acquisition unit is a tension sensor, the signal transmission unit comprises a single chip microcomputer, and an analog signal input interface of the single chip microcomputer is used for receiving tension data signals of the tension sensor through an analog signal amplification processing unit; the data communication interface of the singlechip is connected with a wireless transmitting module and used for transmitting the data signal to an upper computer.
4. A spring dynamometer according to claim 1, characterized by: the acquisition part is a wireless force sensor which is arranged between the spring and the shell or between the hook and the spring and used for measuring the tension of the spring; the wireless force sensor is internally provided with a timer and a wireless signal transmitter, and when the time for sensing the tension value to be unchanged by the timer is consistent with the preset time, the wireless signal transmitter wirelessly transmits a measurement force value signal to an upper computer.
5. A spring dynamometer according to claim 2, characterized by: the acquisition unit is a camera and is used for acquiring the position of the pointer.
6. A spring dynamometer according to claim 3, characterized by: the acquisition unit is an infrared emission device, a laser ranging device or a grating ruler arranged on the pointer.
7. A spring dynamometer according to claim 3, characterized by: the inclination angle sensor or the vertical Hall sensor is used for acquiring inclination angle data of the dynamometer body and sending data information to the signal transmission unit.
8. A spring dynamometer according to claim 1, characterized by: the power supply unit is a battery or an external power supply.
9. The utility model provides a spring dynamometer teaching data acquisition system, characterized by includes:
the data analysis unit comprises an upper computer, a receiving module and a storage module;
a data acquisition unit comprising a plurality of said spring load cells;
the spring dynamometer comprises a receiving module, a storage module and a plurality of spring dynamometers, wherein the data information of the spring dynamometers is transmitted to the receiving module in a wireless or wired mode respectively, the receiving module sends the data information to an upper computer, and the upper computer analyzes and processes the data information and then sends the data information to the storage module for storage.
10. The system of claim 9, wherein the data acquisition system comprises: the experimental data storage device further comprises a display screen, and the display screen is used for calling and displaying the experimental data stored by the upper computer.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202021959212.XU CN212458727U (en) | 2020-09-09 | 2020-09-09 | Spring dynamometer and spring dynamometer teaching data acquisition system |
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| CN202021959212.XU CN212458727U (en) | 2020-09-09 | 2020-09-09 | Spring dynamometer and spring dynamometer teaching data acquisition system |
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| CN212458727U true CN212458727U (en) | 2021-02-02 |
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| CN202021959212.XU Active CN212458727U (en) | 2020-09-09 | 2020-09-09 | Spring dynamometer and spring dynamometer teaching data acquisition system |
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