CN202502653U - Moment disc experimental device with function of measuring force and angle - Google Patents
Moment disc experimental device with function of measuring force and angle Download PDFInfo
- Publication number
- CN202502653U CN202502653U CN201220020063XU CN201220020063U CN202502653U CN 202502653 U CN202502653 U CN 202502653U CN 201220020063X U CN201220020063X U CN 201220020063XU CN 201220020063 U CN201220020063 U CN 201220020063U CN 202502653 U CN202502653 U CN 202502653U
- Authority
- CN
- China
- Prior art keywords
- circuit
- force
- pin
- angle
- chip
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Images
Abstract
The utility model provides a moment disc experimental device with a function of measuring a force and an angle. The moment disc experimental device comprises force-angle sensors, tension arms, a moment disc, thread ropes, a weight, a data collector and a computer. A center of the moment disc is provided with two tension arms which can freely rotate around the center of the moment disc. Each tension arm is provided with a force-angle sensor. One ends of three thread ropes are knotted together, and a knotting point is at the circle center of the moment disc. The other end of each of two thread ropes is respectively connected with a force-angle sensor, and the other end of a third thread rope is hung with the weight. Both the two force-angle sensors are connected with the data collector which is connected with the computer. The utility model is simple in structure and convenient in use, and has a force value data self-correction function, a system error in a measurement process is reduced, relations among a resultant force in a concurrent force, component forces of the resultant force, and angles between the resultant force and the component forces can be statically or dynamically studied, and a parallelogram law in the mechanical law can be verified.
Description
Technical field
The utility model relates to a kind of be used to study resolution of force and synthetic tester; Especially can measure simultaneously in real time size and the angle between the concurrent force of two concurrent force at an angle to each other and whether satisfy the tester of parallelogram of forces rule, belong to the experimental teaching field through two concurrent force of software analysis checking and the relation of size and direction with joint efforts.
Background technology
It is that adjacent side is made a parallelogram with the directed line segment of two concurrent force that the parallelogram of forces rule requires experimental verification, and the diagonal line between this two adjacent side is promptly represented the size and Orientation of making a concerted effort of two power.The conventional physical experimental provision is through using two weight beams at present; Parallelogram is made in artificial reading, described point, line, verifies this rule; And traditional experiment can only carry out static measurement; Can't form the performance analysis process, and since the weight beam medi-spring itself exist own wt and with the factors such as friction of housing, it has increased many systematic errors to power Value Data of measuring.
Development along with the digital experiment instrument; Occurred utilizing force transducer to show the tester of component size automatically; Like Chinese patent document CN201004281 disclosed " resolution of force tester on the inclined-plane ", the resolution of force tester comprises angle index chi, base, support, weight cushion cap and force transducer on this inclined-plane, and the angle index chi is fixedly mounted on the base; Support one end is hinged on the base; The other end is connected on the angle index chi, and the strainometer of force transducer is rack-mount, and the weight cushion cap is installed on the strainometer of force transducer.This tester is manipulated simply, can automatic data collection, and sensitivity is higher; Error is little, has improved experimental precision and conventional efficient to a certain extent, but because the measurement of angle still needs artificial reading and input; Cause read untrue, influenced the practical function of digital experiment instrument.Chinese patent CN200920226468.7 disclosed " the synthetic and decomposition tester of power "; Well solved the automatic problems of measurement of power and angle, but, needed four sensors to patch use simultaneously in the experiment because angular transducer and force transducer are measured respectively; And must distinguish the corresponding relation of force transducer and angular transducer in advance; And in experimentation, also need under the different angles situation, respectively force transducer to be carried out school zero the operation relative complex.
Summary of the invention
The utility model to the synthetic of existing power with decompose the size that two concurrent force of quantitatively dynamic studies that experimental technique exists make a concerted effort with it and direction (angle) concerns and the problem of the systematic error that causes because of various factors; A kind of size of can be qualitative again can two concurrent force of quantitative examination making a concerted effort with it and the moment dish tester with ergometry and angle function of direction (angle) relation are provided; This tester carries self-correcting function; Simple in structure; Easy to use, experiment method is versatile and flexible.
The moment dish tester with ergometry and angle function of the utility model adopts following technical solution:
This moment dish tester; Comprise power-angular transducer, the arm of force, moment dish, cotton rope, weight, data acquisition unit and computing machine, the circle centre position of moment dish is equipped with two arm of forces that can freely rotate around the moment dish center of circle, and a power-angular transducer all is installed on each arm of force; The one end knotting of three cotton ropes together; The knotting point is positioned at the circle centre position of moment dish, and the other end of two cotton ropes is connected with a power-angular transducer respectively, the other end suspension weight of the 3rd cotton rope; Two power-angular transducers all are connected through connection with data acquisition unit; Data acquisition unit is connected with computing machine through connection, and data acquisition unit reads power and the angle-data that power-angular transducer is gathered, and data transmission is arrived computing machine; Demonstrate the size of concurrent force and the angle-data between the concurrent force on the computing machine, and in image, depict the parallelogram curve map that two concurrent force are made a concerted effort with it.
The moment panel surface is provided with the scale that is used to indicate arm of force angle of living in.
Power-angular transducer comprises feed circuit, DAC output circuit, angle signal Acquisition Circuit, force signal collection amplifying circuit, data processing circuit and interface circuit; Feed circuit are that entire circuit provides power supply; The DAC output circuit links to each other with the operational amplifier that force signal is gathered amplifying circuit; The angle signal Acquisition Circuit is gathered amplifying circuit with force signal and is linked to each other with data processing circuit, and interface circuit is that the connection between the circuit provides various interface.
Feed circuit comprise ± 5V feed circuit, 4.096V feed circuit, 3.3V feed circuit and 2.5V feed circuit; ± 5V feed circuit are that entire circuit provides power supply; 4.096V feed circuit link to each other with the strainometer that force signal is gathered amplifying circuit, for it provides power supply; 3.3V feed circuit link to each other with the angle signal Acquisition Circuit, for it provides power supply; 2.5V feed circuit link to each other with data processing circuit, for single-chip microcomputer inside ADC analog-to-digital conversion module provides reference voltage.
The DAC output circuit; Comprise resistance R 1, operational amplifier chip U2; The P0.0 pin of the DAC D/A converter module that the single-chip microcomputer U1 in resistance R 1 one ends and the data processing circuit is inner be connected; Resistance R 1 other end links to each other with operational amplifier chip U2, and its output is connected to force signal and gathers operational amplifier chip U4 the 5th pin in the amplifying circuit.The operational amplifier that single-chip microcomputer in the DAC output circuit connection data processing circuit and force signal are gathered amplifying circuit; Be connected to the reference power supply pin of operational amplifier through the DAC D/A converter module output pin of single-chip microcomputer, the zero point offset amount of adjustment strainometer output signal.
The angle signal Acquisition Circuit; Comprise inclination angle chip U3, potential-divider network and RC filter network; The coupled dividing potential drop of 13,14,15 pin of inclination angle chip U3, filter network link to each other, and dividing potential drop, filter network output link to each other with single-chip microcomputer U1 the 26th, 27,28 pin in the data processing circuit.The angle signal Acquisition Circuit is converted into electric signal through the inclination angle chip with three axial dip angle signals, and the ADC analog-to-digital conversion module by single-chip microcomputer in the data processing circuit carries out data processing again, is converted into the digital signal of angle.
Force signal is gathered amplifying circuit, comprises strainometer J3 and computing amplification chip U4, is linked to each other with the computing amplification chip U4 that force signal is gathered in the amplifying circuit by strainometer J3, and the output of computing amplification chip U4 links to each other with single-chip microcomputer U1 the 29th pin in the data processing circuit.Force signal is gathered the electric signal that amplifying circuit changes into the STRESS VARIATION signal in the external world through strainometer variation; Electric signal is after the chip amplification is amplified in computing; ADC analog-to-digital conversion module by the single-chip microcomputer in the data processing circuit carries out data processing, is converted into the digital signal of power.
Data processing circuit comprises single-chip microcomputer U1, and single-chip microcomputer U1 uses C8051F410, the 1st, the 8 pin connection+5V electric power systems of single-chip microcomputer U1; Reference voltage source chip U2 adopts ADR391; And be connected with single-chip microcomputer U1; 4 pin of reference voltage source chip U2 are connected to 11 pin of single-chip microcomputer U1; To be the output pin of DAC D/A converter module link to each other with resistance R 1 in the DAC output circuit the 17th pin of single-chip microcomputer U1, and resistance R 1 other end links to each other with operational amplifier chip U2, and the output of operational amplifier chip U2 links to each other with operational amplifier chip U4 the 5th pin that force signal is gathered in the amplifying circuit; The 26th, 27,28 pin of single-chip microcomputer U1 are the input pin of the ADC analog-to-digital conversion module of angle signal Acquisition Circuit; Chip U3 in inclination angle in the connection angle signal acquisition circuit, the 29th pin of single-chip microcomputer U1 are the input pin that force signal is gathered the ADC analog-to-digital conversion module of amplifying circuit, connect force signal and gather operational amplifier chip U4 the 6th pin in the amplifying circuit.The electric signal that data processing circuit angle signal acquisition circuit and force signal are gathered amplifying circuit output carries out data processing, and the digital signal after will handling is transferred to data acquisition unit through interface circuit.
Interface circuit; Comprise J1 program download mouth, Transient Suppression Diode TVS1, Transient Suppression Diode TVS2 and SPI communication interface JC; J1 downloads mouth for the CPU program; The 2nd, 32 pin that connect the single-chip microcomputer U1 in the data processing circuit, J2, J3 interface are gathered the interface of amplifying circuit for connecting data processing circuit and force signal, and Transient Suppression Diode TVS1 is connected single-chip microcomputer U1 and SPI communication interface JC with TVS2.The SPI communication interface on the one hand with data processing circuit in single-chip microcomputer SPI connection be connected; Be connected with data acquisition unit on the other hand; Be connected with the Transient Suppression Diode chip on SPI communication interface and the order wire that single-chip microcomputer in the data processing circuit is connected, electrostatic protective function is played in communication to data; The CPU download interface is connected on the single-chip microcomputer in the data processing circuit, the single-chip microcomputer in the data treatment circuit is carried out program download; The interface that connects signal condition connects data processing circuit and force signal collection amplifying circuit.
The principle of work of above-mentioned moment dish is following:
Two power-angular transducers are gathered amplification along component and two arm of forces of two arm of force directions with respect to the data message of the angle of vertical direction to the gravity of weight simultaneously; And in data processing circuit, carry out data processing; The power after will handling then and the data of angle are transferred to data acquisition unit through interface circuit; Data acquisition unit is given computing machine with data through the USB oral instructions, through computer software experimental result is shown.During experiment; Rotate two arm of forces around the moment dish center of circle; Adjust the component size of weight under different angles in the position on the moment dish through changing two arm of forces; If when two arm of forces are fixed on certain position of moment dish, then the angle of two arm of forces and vertical direction can confirm that the component of the gravity of weight also can be confirmed under this angle case; Can be through moment dish tester with the angular relationship between component, gravity and the component of the gravity of measuring under this angle, gravity, and show through software static state; Also can be during experiment through constantly changing the position of the arm of force on the moment dish, come dynamic real-time measurement to demonstrate the angular relationship between component, gravity and the component of gravity, gravity, and in image, depict its parallelogram of forces curve map; Can carry out self-correcting to the power-angular transducer of tester before the experiment beginning, the strainometer deadweight is to the influence of experimental result generation when reducing to be in diverse location because of the arm of force.
The utility model is simple in structure; Easy to use; Experiment method is versatile and flexible; The size of utilizing built-in sensors can measure component is in real time measured the angle between component and the vertical line again simultaneously, only needs two power-angular transducers can accomplish the measurement of two component and angle, and through two concurrent force of software analysis checking and the size with joint efforts and the relation of direction whether satisfy the parallelogram of forces rule; The power Value Data self-correcting function that the utlity model has simultaneously; Reduced greatly in the measuring process because of deadweight of measuring Sensitive Apparatus itself and systematic error that other factors are brought to experiment, can static state or the dynamic research concurrent force in the component of making a concerted effort, making a concerted effort and make a concerted effort and component between the relation of angle, thereby verify the parallelogram law in the mechanics rule.
Description of drawings
Fig. 1 is the structural representation of the utility model.
Fig. 2 is the structural principle synoptic diagram of the utility model.
Fig. 3 is in the feed circuit of the power-angular transducer in the utility model ± 5V feed circuit schematic diagram.
Fig. 4 is a 4.096V feed circuit schematic diagram in the feed circuit of the power-angular transducer in the utility model.
Fig. 5 is a 3.3V feed circuit schematic diagram in the feed circuit of the power-angular transducer in the utility model.
Fig. 6 is a 2.5V feed circuit schematic diagram in the feed circuit of the power-angular transducer in the utility model.
Fig. 7 is the DAC output circuit schematic diagram of the power-angular transducer in the utility model.
Fig. 8 is the angle signal Acquisition Circuit schematic diagram of the power-angular transducer in the utility model.
Fig. 9 is that the force signal of the power-angular transducer in the utility model is gathered the amplifying circuit schematic diagram.
Figure 10 is the data processing circuit schematic diagram of the power-angular transducer in the utility model.
Figure 11 is the interface circuit schematic diagram of the power-angular transducer in the utility model.
Figure 12 is the static experimental image of the utility model.
Wherein: 1, power-angular transducer, 2, the arm of force, 3, the moment dish, 4, data acquisition unit, 5, computing machine, 6, cotton rope, 7, weight.
Embodiment
As depicted in figs. 1 and 2, the moment dish with ergometry and angle function of the utility model comprises power-angular transducer 1, the arm of force 2, moment dish 3, data acquisition unit 4, computing machine 5, cotton rope 6 and weight 7.The circle centre position of moment dish 3 is equipped with 2, two arm of forces 2 of two arm of forces and can freely rotates around the center of circle of moment dish 3, changes the angle-data of the measurement of two power-angular transducers 1 through rotating the arm of force 2, and measured force data also will change thereupon.All be installed with a power-angular transducer 1 on each arm of force 2, power-angular transducer 1 is used to measure component size and the direction (being the angle between this component and the vertical direction) of this component on the arm of force 2.One end of three cotton ropes 6 is tied a knot together, and the knotting point is positioned at the circle centre position of moment dish 3, and the other end of two cotton ropes 6 connects respectively with a power-angular transducer 1 and is connected, and forms the concurrent force system.The other end of the 3rd cotton rope 6 is hung with weight 7, and weight 7 is connected on power-angular transducer through cotton rope, produces to make a concerted effort.The one side of moment dish 3 is printed on scale, is used to indicate two arm of forces, 2 residing angles.Two power-angular transducers 1 all are connected through connection with data acquisition unit 4, and data acquisition unit 4 is connected with computing machine 5 through connection.Power-angular transducer 1 is measured the angle signal of weight 7 along the partical gravity of the arm of force 2 directions and two component and gravity respectively through built-in strainometer and inclination angle chip; And connect through data acquisition unit 4 and to upload to computing machine 5, demonstrate on the computing machine 5 make a concerted effort, component, make a concerted effort and component between the data and the parallelogram of forces curve map of angle.
Power-angular transducer 1 comprises feed circuit, DAC output circuit, angle signal Acquisition Circuit, force signal collection amplifying circuit, data processing circuit, interface circuit; The DAC output circuit links to each other with the operational amplifier that force signal is gathered amplifying circuit; The angle signal Acquisition Circuit is gathered amplifying circuit with force signal and is linked to each other with data processing circuit; Feed circuit are that entire circuit provides power supply; An interface circuit part connects force signal and gathers amplifying circuit and data processing circuit, and another part is that the single-chip microcomputer of data processing circuit provides download interface, and some connects data processing circuit and data acquisition unit 4.
Feed circuit in power-angular transducer comprise ± 5V feed circuit, 4.096V feed circuit, 3.3V feed circuit, 2.5V feed circuit; ± 5V feed circuit provide power supply for the entire circuit system; 4.096V feed circuit link to each other with the strainometer that force signal is gathered amplifying circuit, for it provides power supply; 3.3V feed circuit link to each other with the angle signal Acquisition Circuit, for it provides power supply; 2.5V feed circuit link to each other with data processing circuit, for single-chip microcomputer inside ADC analog-to-digital conversion module provides reference voltage.
In power-angular transducer feed circuit ± the 5V feed circuit are as shown in Figure 3; Sensor entire circuit system is+the 5V electric power system; And+5V power supply process miniwatt reversal of poles power supply changeover device chip U3 (ICL7660) the 5th pin output-5V power supply;-5V power supply links to each other with operational amplifier chip U4 (AD620AR) the 4th pin that the force signal of Fig. 9 is gathered in the amplifying circuit, for it provides negative supply.
4.096V feed circuit in power-angular transducer feed circuit are as shown in Figure 4; + 5V supply voltage is through reference voltage source chip U1 (REF3040) the 2nd pin output 4.096V normal voltage; It links to each other with the strainometer J3 that the force signal of Fig. 9 is gathered in the amplifying circuit, for it provides stable supply voltage accurately.
3.3V feed circuit in power-angular transducer feed circuit are as shown in Figure 5; + 5V supply voltage is through reference voltage source chip U4 (XC6219B332MR) the 5th pin output 3.3V normal voltage; It links to each other with inclination angle chip U3 (MMA7260Q) the 3rd pin in the angle signal Acquisition Circuit of Fig. 8, for it provides stable supply voltage accurately.
2.5V feed circuit in power-angular transducer feed circuit are as shown in Figure 6; + 5V supply voltage is through reference voltage source chip U2 (ADR391) the 3rd, 4 pin output 2.5V normal voltage; It links to each other with single-chip microcomputer U1 (C8051F410) the 11st pin in the data processing circuit of Figure 10, for it provides stable reference voltage accurately.
DAC output circuit in power-angular transducer feed circuit is as shown in Figure 7; DAC D/A converter module by single-chip microcomputer U1 is inner is exported the current signal that digital-to-analog conversion becomes through the P0.0 pin; The resistance R 1 of current signal in Fig. 7 DAC output circuit converts voltage signal into; Voltage signal amplifies through operational amplifier chip U2 (MAX4322) again; The force signal that is connected to Fig. 9 is gathered operational amplifier chip U4 (AD620AR) the 5th pin in the amplifying circuit, for it provides adjustable reference voltage.
Angle signal Acquisition Circuit in power-angular transducer is as shown in Figure 8; Gather voltage signal by inclination angle chip U3 (MMA7260Q); And by the output of 13,14,15 pin of U3; Single-chip microcomputer U1 (C8051F410) the 26th, 27,28 pin in the data processing circuit of coupled dividing potential drop, filter network and Figure 10 link to each other again; The ADC analog-to-digital conversion module inner through single-chip microcomputer U1 changes into digital signal with the analog voltage signal of gathering, and these digital signals are carried out analyzing and processing, finally draws correct angle information.
It is as shown in Figure 9 that force signal in power-angular transducer is gathered amplifying circuit; By strainometer J3 the STRESS VARIATION in the external world is converted into electric signal; Computing amplification chip U4 (AD620AR) in force signal collection amplifying circuit is exported by the 6th pin after feeble signal is amplified again; Link to each other with single-chip microcomputer U1 (C8051F410) the 29th pin in the data processing circuit of Figure 10; Through the inner ADC analog-to-digital conversion module of single-chip microcomputer U1 the electric signal of strainometer collection is changed into digital signal, and it is carried out analyzing and processing, finally draw correct force information.
Data processing circuit in power-angular transducer is shown in figure 10, and single-chip microcomputer U1 is the core component of data processing circuit, adopts C8051F410, and feed circuit connect the 1st, 8 pin of single-chip microcomputer by+5V electric power system power supply; Reference voltage source chip U2 (Fig. 6) adopts ADR391; And be connected with single-chip microcomputer U1; The 3rd, 4 pin of reference voltage source chip U2 are connected to 11 pin of single-chip microcomputer U1, and ADC analog-to-digital conversion module and the DAC D/A converter module inner for single-chip microcomputer U1 provide reference voltage accurately.The 17th pin of single-chip microcomputer U1 is the output pin of DAC D/A converter module; The current signal of pin output converts voltage signal to through the resistance R 1 of Fig. 7 thus; Amplify through operational amplifier chip U2 (MAX4322) again; The force signal that is connected to Fig. 9 is gathered operational amplifier chip U4 (AD620AR) the 5th pin in the amplifying circuit, for it provides adjustable reference voltage.Single-chip microcomputer U1 (C8051F410) the 26th, 27,28 pin are the input pin of the ADC analog-to-digital conversion module of angle signal Acquisition Circuit; Connection layout 8 angle signal Acquisition Circuit; The voltage signal that inclination angle chip U3 (MMA7260Q) is gathered is converted into digital signal; And these digital signals are carried out analyzing and processing, finally draw correct angle information.Single-chip microcomputer U1 (C8051F410) the 29th pin is the input pin that force signal is gathered the ADC analog-to-digital conversion module of amplifying circuit; Connection layout 9 force signals are gathered operational amplifier chip U4 (AD620AR) the 6th pin in the amplifying circuit; The STRESS VARIATION of strainometer collection is converted into digital signal; And it is carried out analyzing and processing, finally draw correct force information.
Interface circuit in power-angular transducer is shown in figure 11, and J1 downloads mouth for the CPU program, connects the 2nd, 32 pin of single-chip microcomputer U1.J2, J3 interface are gathered the interface of amplifying circuit for connecting data processing circuit and force signal.TVS1, TVS2 are Transient Suppression Diode, connect single-chip microcomputer U1 and SPI communication interface JC, the data treatment circuit is carried out data communication through SPI communication interface JC and data acquisition unit play electrostatic protective function.
The experiment model of above-mentioned moment dish tester is described below:
Figure 12 has provided two component of moment dish experiment model
F 1,
F 2, make a concerted effort
F CloseAnd the angle [alpha] between the three
1, α
2Data are to utilize two power-angular transducer on the moment dish to measure.G is the suffered gravity of object, is manual input quantity, as with
F CloseCarry out the reference value of reference.Among Figure 12
F 1,
F 2,
F Close, α
1, α
2The figure of parallelogram figure for utilizing measurement data to draw of forming can be verified the parallelogram of forces rule through this, when power-angular transducer is measured
F 1,
F 2,
F Close, α
1, α
2When arbitrary data changes, this parallelogram figure also will change thereupon, can carry out the real-time and dynamic data analysis.
Claims (8)
1. moment dish tester with ergometry and angle function; Comprise power-angular transducer, the arm of force, moment dish, cotton rope, weight, data acquisition unit and computing machine, it is characterized in that: the circle centre position of moment dish is equipped with two arm of forces that can freely rotate around the moment dish center of circle, and a power-angular transducer all is installed on each arm of force; The one end knotting of three cotton ropes together; The knotting point is positioned at the circle centre position of moment dish, and the other end of two cotton ropes is connected with a power-angular transducer respectively, the other end suspension weight of the 3rd cotton rope; Two power-angular transducers all are connected through connection with data acquisition unit; Data acquisition unit (4) is connected with computing machine through connection, and data acquisition unit reads power and the angle-data that power-angular transducer is gathered, and data transmission is arrived computing machine; Demonstrate the size of concurrent force and the angle-data between the concurrent force on the computing machine, and in image, depict the parallelogram curve map that two concurrent force are made a concerted effort with it.
2. the moment dish tester with ergometry and angle function according to claim 1, it is characterized in that: said moment panel surface is provided with the scale that is used to indicate arm of force angle of living in.
3. the moment dish tester with ergometry and angle function according to claim 1; It is characterized in that: said power-angular transducer comprises feed circuit, DAC output circuit, angle signal Acquisition Circuit, force signal collection amplifying circuit, data processing circuit and interface circuit; Feed circuit are that entire circuit provides power supply; The DAC output circuit links to each other with the operational amplifier that force signal is gathered amplifying circuit; The angle signal Acquisition Circuit is gathered amplifying circuit with force signal and is linked to each other with data processing circuit, and interface circuit is that the connection between the circuit provides various interface.
4. the moment dish tester with ergometry and angle function according to claim 3; It is characterized in that: said DAC output circuit; Comprise resistance R 1, operational amplifier chip U2; The P0.0 pin of the DAC D/A converter module that the single-chip microcomputer U1 in resistance R 1 one ends and the data processing circuit is inner be connected, resistance R 1 other end links to each other with operational amplifier chip U2, its output is connected to operational amplifier chip U4 the 5th pin in the force signal collection amplifying circuit.
5. the moment dish tester with ergometry and angle function according to claim 3; It is characterized in that: said angle signal Acquisition Circuit; Comprise inclination angle chip U3, potential-divider network and RC filter network; The coupled dividing potential drop of 13,14,15 pin of chip U3, filter network link to each other, and dividing potential drop, filter network output link to each other with single-chip microcomputer U1 the 26th, 27,28 pin in the data processing circuit.
6. the moment dish tester with ergometry and angle function according to claim 3; It is characterized in that: said force signal is gathered amplifying circuit; Comprise strainometer J3 and computing amplification chip U4; Linked to each other with the computing amplification chip U4 that force signal is gathered in the amplifying circuit by strainometer J3, the output of computing amplification chip U4 links to each other with single-chip microcomputer U1 the 29th pin in the data processing circuit.
7. the moment dish tester with ergometry and angle function according to claim 3, it is characterized in that: said data processing circuit comprises single-chip microcomputer U1, single-chip microcomputer U1 uses C8051F410, the 1st, the 8 pin connection+5V electric power systems of single-chip microcomputer U1; Reference voltage source chip U2 adopts ADR391; And be connected with single-chip microcomputer U1; 4 pin of reference voltage source chip U2 are connected to 11 pin of single-chip microcomputer U1; To be the output pin of DAC D/A converter module link to each other with resistance R 1 in the DAC output circuit the 17th pin of single-chip microcomputer U1, and resistance R 1 other end links to each other with operational amplifier chip U2, and the output of operational amplifier chip U2 links to each other with operational amplifier chip U4 the 5th pin that force signal is gathered in the amplifying circuit; The 26th, 27,28 pin of single-chip microcomputer U1 are the input pin of the ADC analog-to-digital conversion module of angle signal Acquisition Circuit; Chip U3 in inclination angle in the connection angle signal acquisition circuit, the 29th pin of single-chip microcomputer U1 are the input pin that force signal is gathered the ADC analog-to-digital conversion module of amplifying circuit, connect force signal and gather operational amplifier chip U4 the 6th pin in the amplifying circuit.
8. the moment dish tester with ergometry and angle function according to claim 3; It is characterized in that: said interface circuit comprises J1 program download mouth, Transient Suppression Diode TVS1, Transient Suppression Diode TVS2 and SPI communication interface JC; J1 downloads mouth for the CPU program; The 2nd, 32 pin that connect the single-chip microcomputer U1 in the data processing circuit; J2, J3 interface are gathered the interface of amplifying circuit for connecting data processing circuit and force signal, and Transient Suppression Diode TVS1 and TVS2 connect single-chip microcomputer U1 and SPI communication interface JC.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220020063XU CN202502653U (en) | 2012-01-17 | 2012-01-17 | Moment disc experimental device with function of measuring force and angle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220020063XU CN202502653U (en) | 2012-01-17 | 2012-01-17 | Moment disc experimental device with function of measuring force and angle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202502653U true CN202502653U (en) | 2012-10-24 |
Family
ID=47039262
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201220020063XU Expired - Lifetime CN202502653U (en) | 2012-01-17 | 2012-01-17 | Moment disc experimental device with function of measuring force and angle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202502653U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102436771A (en) * | 2012-01-17 | 2012-05-02 | 山东省远大网络多媒体股份有限公司 | Moment disc tester with force and angle measuring function |
| CN103794118A (en) * | 2014-01-29 | 2014-05-14 | 肖挺松 | Two-dimensional large deformation demonstration instrument |
| CN105313551A (en) * | 2015-11-25 | 2016-02-10 | 国网山东省电力公司经济技术研究院 | Phase angle drawing device for power |
-
2012
- 2012-01-17 CN CN201220020063XU patent/CN202502653U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102436771A (en) * | 2012-01-17 | 2012-05-02 | 山东省远大网络多媒体股份有限公司 | Moment disc tester with force and angle measuring function |
| CN103794118A (en) * | 2014-01-29 | 2014-05-14 | 肖挺松 | Two-dimensional large deformation demonstration instrument |
| CN103794118B (en) * | 2014-01-29 | 2015-12-16 | 肖挺松 | Two dimension large deformation demonstrator |
| CN105313551A (en) * | 2015-11-25 | 2016-02-10 | 国网山东省电力公司经济技术研究院 | Phase angle drawing device for power |
| CN105313551B (en) * | 2015-11-25 | 2017-03-22 | 国网山东省电力公司经济技术研究院 | Phase angle drawing device for power |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103616157B (en) | The quiet calibration system of wind-tunnel balance body axle system and method | |
| CN202502653U (en) | Moment disc experimental device with function of measuring force and angle | |
| CN101949770B (en) | Identifying and testing system of static force of blades of wind driven generator | |
| CN206695827U (en) | Electric power line pole tower condition monitoring system | |
| CN207191485U (en) | A kind of rotor system test equipment | |
| CN101666812A (en) | Radio acceleration strain temperature data collecting system based on solar energy | |
| CN101603817B (en) | Detection equipment and detection method for thickness of glass | |
| CN202048888U (en) | High speed displacement laser detecting system | |
| CN102680084A (en) | Light distribution measuring device and method for crop canopy | |
| CN101344421B (en) | Dynamic railway truck scale data acquisition instrument and method | |
| CN104386552A (en) | Elevator car top distributor attitude indicator | |
| CN105083585B (en) | A kind of quadrotor balance test system | |
| CN103565447A (en) | Sensor for measuring occlusal force | |
| CN102436771A (en) | Moment disc tester with force and angle measuring function | |
| CN102551669B (en) | Measuring device and measuring method for human body gravity center positions in space station zero gravity environment | |
| CN102506741A (en) | Three-dimensional deformation measuring device for measured piece in high-temperature and low-temperature box | |
| CN202235787U (en) | Measuring device for hand gesture of electromyography prosthetic hand or relevance of electromyography signal | |
| CN202330194U (en) | High precision measurement system for three-dimensional microdeformation of mechanical device in high-lower temperature chamber | |
| CN102435515A (en) | High-precision measurement system for three-dimensional microdeformation of mechanical device in high-low-temperature case | |
| CN204192578U (en) | Human life cell health detection signal acquisition process stores one earphone | |
| CN201262794Y (en) | Demonstration instrument for teaching force parallelogram rule | |
| CN2888420Y (en) | Platform device for force measurement | |
| CN202704827U (en) | Wireless weighing device of crane hook | |
| CN201787919U (en) | Deformation detecting device | |
| CN201004281Y (en) | Analysis tester for force on a slope |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP03 | Change of name, title or address |
Address after: Xinluo Avenue high tech Zone of Ji'nan City, Shandong province 250101 Xinsheng No. 1299 Building 2 building 13-1 Patentee after: Shandong Yuanda Runwe education Polytron Technologies Inc Address before: 250101 Shandong city of Ji'nan province high tech Zone Shun Road No. 1, Qilu Software Park Building Room 1202 Patentee before: Shandong Yuanda Net & Multimedia Co., Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20121024 |
|
| CX01 | Expiry of patent term |