CN207966250U - Bohr resonance experiment instrument - Google Patents

Abstract

The utility model discloses a Bohr resonance experiment instrument, which comprises a photoelectric encoder circuit, a single-chip microcomputer chip circuit, a voltage stabilizing circuit, a coil current control circuit and a touch screen communication circuit; a photoelectric encoder circuit, a voltage stabilizing circuit, and a coil current control circuit. The circuit and the touch screen communication circuit are respectively electrically connected to the single-chip microcomputer chip circuit. This work uses a photoelectric encoder instead of a flash to measure the phase difference between the forced vibration of the balance wheel and the forced force, which is more accurate and efficient; the zero signal of the photoelectric encoder is used to measure the cycle and amplitude of the balance wheel and stepping motor rotation The signal code increases the zero calibration function of the instrument, which avoids the error caused by the offset of the zero signal caused by the elastic deformation of the spring connected to the balance wheel, making the measured experimental data more accurate; the touch screen is used as the display The device and the operation interface can avoid the mechanical wear caused by the traditional keys, so as to achieve the purpose of simplifying the structure of the instrument and increasing the life of the instrument.

Description

A Bohr Resonance Experimental Apparatus

technical field

The utility model relates to a Bohr resonance experiment instrument, which belongs to the technical field of Bohr resonance instruments.

Background technique

Vibration is an important motion in physics and one of the most common forms of motion in nature. Vibration can be divided into free vibration (undamped vibration), damped vibration and forced vibration. The physical quantity in vibration changes periodically with time. In engineering technology, damped vibration and forced vibration, as well as the resonance phenomenon caused by forced vibration, are the most common. On the one hand, the resonance phenomenon shows strong destructiveness, but on the other hand, it has many practical values that can be used by us. For example, electro-acoustic devices are designed and manufactured by using the principle of resonance, and the structure of substances is studied by using nuclear magnetic resonance and paramagnetic resonance. Therefore, the study of vibration and forced vibration is a very meaningful physical experiment project.

Characterizing the nature of forced vibration is the amplitude-frequency characteristic and phase-frequency characteristic of forced vibration (referred to as amplitude-frequency and phase-frequency characteristics). The existing Bohr resonance instrument generally uses the stroboscopic method to measure the phase difference between the forced vibration of the balance wheel and the stepper motor. Use the upper and lower photoelectric gates to measure the period and amplitude of the balance wheel rotation respectively.

The shortcomings of the existing mainstream Bohr resonance instrument: (1) use the naked eye to read the scale value of the flash position of the flash when the balance wheel is forced to vibrate stably as the phase difference value, the data reading error is large, and the life of the flash is limited; ( 2) Use the upper and lower photoelectric gates to measure the period and amplitude of the balance wheel. The long groove on the balance wheel is used as the signal code for measuring the rotation period of the balance wheel. The photoelectric gate is required to be aligned with the long groove, but as the number of experiments increases, the long The groove will deviate from the photogate, which increases the experimental error.

Utility model content

The technical problem to be solved by the utility model is to overcome the defects of the prior art, and provide a Bohr resonance experiment instrument which uses an angle sensor to measure the amplitude, period and phase difference of the balance wheel and the stepping motor.

In order to achieve the above object, the utility model provides a Bohr resonance experiment instrument, including a balance wheel and a stepping motor, the balance wheel is vertically arranged on the ground, and also includes a photoelectric encoder circuit, a single-chip microcomputer chip circuit, a voltage stabilizing circuit, a coil current Control circuit and touch screen communication circuit; the photoelectric encoder circuit includes photoelectric encoder 1 and photoelectric encoder 2, the balance wheel and the photoelectric encoder 1 cooperate with each other, and the stepping motor and the photoelectric encoder The second device cooperates with the linkage, and the photoelectric encoder circuit, the voltage stabilizing circuit, the coil current control circuit and the touch screen communication circuit are respectively electrically connected to the single-chip microcomputer chip circuit.

Preferably, the output shaft of the photoelectric encoder one is coaxially fixedly connected to the center of the balance wheel, and the output shaft of the photoelectric encoder two is coaxially fixedly connected to the output shaft of the stepping motor; the photoelectric encoder VCC end+5V power supply of one, the GND end of the photoelectric encoder one is grounded, the B+ end and A- end of the photoelectric encoder one are connected to the single-chip microcomputer chip circuit; the VCC end of the photoelectric encoder two+5V Power supply, the GND terminal of the photoelectric encoder 2 is grounded, and the Z+ terminal, A- terminal, and B+ terminal of the photoelectric encoder 2 are connected to the single-chip microcomputer chip circuit.

Preferably, the voltage stabilizing circuit includes a TL431 voltage regulator, a resistor R1, a resistor R2, a capacitor C17, a variable resistor R3, a light-emitting diode D1 and a resistor R12, the cathode K of the TL431 voltage regulator is connected to one end of the resistor R1, and the resistor R1 is connected to the other end of the resistor R1. One end is connected to +5V, the positive pole of the capacitor C17 is connected to the cathode K of the TL431 voltage regulator, the negative pole of the capacitor C17 is connected to the anode A of the TL431 voltage regulator, the anode A of the TL431 voltage regulator, and the reference electrode R of the TL431 voltage regulator are connected in parallel. R2, the anode A of the TL431 voltage regulator is grounded, the variable resistor R3 is connected in parallel between the cathode K of the TL431 voltage regulator and the reference pole R of the TL431 voltage regulator, and the anode of the light-emitting diode D1 is respectively connected to the cathode K of the TL431 voltage regulator. Describe the single-chip microcomputer chip circuit, the positive pole of the light-emitting diode D1 is powered by +5V, and the negative pole of the light-emitting diode D1 is connected to the ground after the resistor R12.

Preferably, a switching power supply and a relay circuit are included, the relay circuit includes a relay Q4, a diode D2, a resistor R11 and a S9013 triode, the emitter of the S9013 triode is grounded, and the base series resistor R11 of the S9013 triode is then connected to the single-chip microcomputer chip circuit, The collector of the S9013 triode is connected to one end of the coil in the relay Q4, the diode D2 is connected in series between the two ends of the coil in the relay Q4, the relay Q4 is powered by +12V, the P3 port, the P4 port of the switch in the relay Q4, the stepping motor and the switching power supply are connected in series .

Preferably, the coil current control circuit includes an LM358 operational amplifier, a coil, a capacitor C6, a TIP50 transistor, a resistor R4, a capacitor C5, a resistor R5, a resistor R6, a resistor R7 and a transistor BU406, and the balance wheel is located between the coils , the VCC- terminal of the LM358 operational amplifier is grounded, the in+ terminal of the LM358 operational amplifier is connected to the microcontroller chip circuit, the in- terminal of the LM358 operational amplifier is connected in series with resistor R6 and resistor R7 and then grounded, and the node between resistor R6 and resistor R7 is connected to a triode The emitter e3 of BU406, the in-terminal of LM358 operational amplifier and the out1 terminal of LM358 operational amplifier are connected in series with capacitor C5, the out1 terminal of LM358 operational amplifier is connected to the base of TIP50 triode after being connected to the base of TIP50 triode, and the emitter of TIP50 triode is connected to triode The base b1 of the BU406, the collector of the TIP50 triode are connected to the collector c2 of the triode BU406, the collector of the TIP50 triode is connected to the negative pole of the capacitor C6, the positive pole of the capacitor C6 is powered by +12V, and the capacitor C6 is connected in series with the coil to form a loop.

Preferably, the touch screen communication circuit includes a touch screen, a MAX232TTL-232 level conversion chip, a capacitor C7, a capacitor C8, a capacitor C9 and a capacitor C10, the VCC terminal of the MAX232TTL-232 level conversion chip, and the negative electrode of the capacitor C7 are all +5V power supply, the positive pole of capacitor C7 is connected to the V+ terminal, the positive pole of capacitor C8 and the negative pole of capacitor C8 are respectively connected to the C1+ and C1- terminals of the MAX232TTL-232 level conversion chip, and the positive pole of capacitor C9 and the negative pole of capacitor C9 are respectively connected to the MAX232TTL-232 level conversion chip C2+ terminal and C2- terminal, the V- terminal of the MAX232TTL-232 level conversion chip is grounded after the negative electrode of the capacitor C10 is connected in series, the GND of the MAX232TTL-232 level conversion chip is grounded, and the T2OUT port and R2IN port of the TTL-232 level conversion chip pass through Port 1 and port 2 of the interface P2 are respectively connected to the RXD port and TXD port of the touch screen. The touch screen is powered by +12V through the interface P2, and the T2IN port and R2OUT port of the MAX232TTL-232 level conversion chip are connected to the microcontroller chip circuit .

Preferably, the single-chip microcomputer chip circuit includes an IAP15W4K58S4 single-chip microcomputer, a resistor R8, a resistor R9, a resistor R10, a capacitor C11, a capacitor C16 and a capacitor C12, and the VCC terminal +5V of the IAP15W4K58S4 single-chip microcomputer is powered; the P1.1 port of the IAP15W4K58S4 single-chip microcomputer, the resistor R8, The resistor R9, the resistor R10 and the P1.3 port of the IAP15W4K58S4 microcontroller are connected in series, the node between the resistor R8 and the resistor R9 is connected in series with the capacitor C11 and then grounded, and the node between the resistor R10 and the P1.3 port of the IAP15W4K58S4 microcontroller is connected in series with the capacitor C12 and then grounded. The node between resistor R9 and resistor R10 is connected in series with capacitor R16 and grounded, the node between resistor R9 and resistor R10 is connected to the LM358 operational amplifier; the node between resistor R9 and resistor R10 is connected to the in+ terminal of the LM358 operational amplifier.

Preferably, the B+ end of the photoelectric encoder one is connected to the P3.2 port of the IAP15W4K58S4 microcontroller, and the A- end of the photoelectric encoder one is connected to the P2.2 port of the IAP15W4K58S4 microcontroller; the photoelectric encoder two The Z+ end of the photoelectric encoder is connected to the P2.4 port of the IAP15W4K58S4 single-chip microcomputer, the A- end of the photoelectric encoder two is connected to the P2.3 port of the IAP15W4K58S4 single-chip microcomputer, and the B+ end of the photoelectric encoder two is connected to the P2.3 port of the IAP15W4K58S4 single-chip microcomputer. P3.3 port.

Preferably, the anode of the light-emitting diode D1 is connected to the VCC terminal of the IAP15W4K58S4 microcontroller; the base series resistor R11 of the S9013 transistor is then connected to the P2.0 port of the IAP15W4K58S4 microcontroller.

Preferably, the T2IN port of the MAX232TTL-232 level conversion chip is connected to the P3.7 port of the IAP15W4K58S4 microcontroller, and the R2OUT port of the MAX232TTL-232 level conversion chip is connected to the P3.6 port of the IAP15W4K58S4 microcontroller.

The beneficial effects achieved by the utility model:

1. The damage rate of the instrument is reduced, and the accuracy of the experiment is improved: this work uses a photoelectric encoder instead of a flash to measure the phase difference between the forced vibration of the balance wheel and the forced force, which is more accurate and efficient; and the service life of the photoelectric encoder is much longer The use of flashlights greatly reduces the damage rate of the instrument, improves the service life of the device, and enhances the reliability of the device;

2. The zero position signal of the photoelectric encoder is used as the signal code to measure the cycle and amplitude of the balance wheel and the stepping motor, which increases the zero calibration function of the device and avoids the zero caused by the elastic deformation of the spring connected to the balance wheel in the past. The error caused by the offset of the bit signal makes the measured cycle and amplitude of the balance wheel and stepper motor more accurate;

3. The operation process is simple and the experimental results are intuitive: the structure of the instrument is simplified through the touch screen, and the experimental operation process is more concise; the amplitude curve of the balance wheel and stepping motor is displayed in real time through the touch screen, and the operation in the form of clicking the picture avoids The wear and tear of traditional buttons improves the service life of the instrument; the touch screen has a data storage function, and the experimental data obtained is stored in the form of a data table, which is convenient to call and intuitively displayed;

4. The experimental operation of this device has a wide range of options. This work can be freely switched between three experiments: free oscillation, damped oscillation, and forced oscillation. The experiment is highly operable, while the existing Bohr resonator must first complete the damping Oscillation is required for forced oscillation experiments, and the experimental options are limited.

Description of drawings

Fig. 1 is a block diagram of the utility model;

Fig. 2 is a circuit diagram of the utility model;

Fig. 3 is a schematic diagram of the coil and the balance wheel in the utility model.

Meanings of marks in the accompanying drawings, 1-coil; 2-balance wheel.

Detailed ways

Below in conjunction with accompanying drawing, the utility model is further described. The following examples are only used to illustrate the technical solution of the utility model more clearly, but not to limit the protection scope of the utility model.

A Bohr resonance experimental instrument, comprising a balance wheel and a stepping motor, the balance wheel is arranged vertically on the ground, including a photoelectric encoder circuit, a single-chip microcomputer chip circuit, a voltage stabilizing circuit, a coil current control circuit and a touch screen communication circuit; Described photoelectric encoder circuit comprises photoelectric encoder one and photoelectric encoder two, and described balance wheel and described photoelectric encoder one cooperate linkage, and described stepping motor and described photoelectric encoder two cooperate linkage, and described photoelectric encoder The circuit, the voltage stabilizing circuit, the coil current control circuit and the touch screen communication circuit are respectively electrically connected to the single-chip microcomputer chip circuit.

Further, the output shaft of the photoelectric encoder one is coaxially fixedly connected to the center of the balance wheel, and the output shaft of the photoelectric encoder two is coaxially fixedly connected to the output shaft of the stepping motor; the photoelectric encoder VCC end+5V power supply of one, the GND end of the photoelectric encoder one is grounded, the B+ end and A- end of the photoelectric encoder one are connected to the single-chip microcomputer chip circuit; the VCC end of the photoelectric encoder two+5V Power supply, the GND terminal of the photoelectric encoder 2 is grounded, and the Z+ terminal, A- terminal, and B+ terminal of the photoelectric encoder 2 are connected to the single-chip microcomputer chip circuit.

Further, the voltage stabilizing circuit includes a TL431 voltage regulator, a resistor R1, a resistor R2, a capacitor C17, a variable resistor R3, a light-emitting diode D1 and a resistor R12, the cathode K of the TL431 voltage regulator is connected to one end of the resistor R1, and the resistor R1 is connected to the other end of the resistor R1. One end is connected to +5V, the positive pole of the capacitor C17 is connected to the cathode K of the TL431 voltage regulator, the negative pole of the capacitor C17 is connected to the anode A of the TL431 voltage regulator, the anode A of the TL431 voltage regulator, and the reference electrode R of the TL431 voltage regulator are connected in parallel. R2, the anode A of the TL431 voltage regulator is grounded, the cathode K of the TL431 voltage regulator, and the reference pole R of the TL431 voltage regulator are connected in parallel with the variable resistor R3, and the positive pole of the light-emitting diode D1 is respectively connected to the cathode K of the TL431 voltage regulator. Describe the chip circuit of the single-chip microcomputer, the positive pole of the light-emitting diode D1 is powered by +5V, the negative pole of the light-emitting diode D1 is connected in series with the resistor R12 and then grounded; the value of the resistor R1 is 100Ω, the value of the capacitor C17 is 25V, 1000uF, the maximum value of the variable resistor R3 is 10K, and the value of the resistor R12 is 10K .

Further, a switching power supply and a relay circuit are included, the relay circuit includes a relay Q4, a diode D2, a resistor R11 and a S9013 triode, the emitter of the S9013 triode is grounded, and the base series resistor R11 of the S9013 triode is then connected to the single-chip microcomputer chip circuit, The collector of the S9013 triode is connected to one end of the coil in the relay Q4, the diode D2 is connected in series between the two ends of the coil in the relay Q4, the relay Q4 is powered by +12V, the P3 port, the P4 port of the switch in the relay Q4, the stepping motor and the switching power supply are connected in series .

Further, the coil current control circuit, that is, the coil current control module includes an LM358 operational amplifier, a coil, a capacitor C6, a TIP50 transistor, a resistor R4, a capacitor C5, a resistor R5, a resistor R6, a resistor R7 and a transistor BU406, and the balance wheel is located at Between the coils, the VCC- terminal of the LM358 operational amplifier is grounded, the in+ terminal of the LM358 operational amplifier is connected to the chip circuit of the single-chip microcomputer, the in- terminal of the LM358 operational amplifier is connected in series with the resistor R6 and the resistor R7, and then grounded, and the connection between the resistor R6 and the resistor R7 is grounded. The nodes between are connected to the emitter e3 of the triode BU406, the in-terminal of the LM358 operational amplifier and the out1 terminal of the LM358 operational amplifier are connected in series with the capacitor C5, and the out1 terminal of the LM358 operational amplifier is connected to the base of the TIP50 triode after the out1 terminal of the LM358 operational amplifier is connected to the base of the TIP50 triode. The emitter of the transistor is connected to the base b1 of the transistor BU406, the collector of the TIP50 transistor is connected to the collector c2 of the transistor BU406, the collector of the TIP50 transistor is connected to the negative pole of the capacitor C6, the positive pole of the capacitor C6 is powered by +12V, and the capacitor C6 is connected in series with the coil to form a loop; The value of capacitor C6 is 25V and 33uF, the value of resistor R4 is 1K, the value of capacitor C5 is 0.1uF, the value of resistor R5 is 1K, the value of resistor R6 is 1K; the value of resistor R7 is 1Ω5W, and R7 is a cement resistor of 1 ohm and 5 watts. The highest coil current is only 1A, so the rated power of resistor R7 can only be 5Ω.

Further, the touch screen communication circuit includes a touch screen, a MAX232TTL-232 level conversion chip, a capacitor C7, a capacitor C8, a capacitor C9 and a capacitor C10, the VCC terminal of the MAX232TTL-232 level conversion chip, and the negative electrode of the capacitor C7 are all +5V power supply, the positive pole of capacitor C7 is connected to the V+ terminal, the positive pole of capacitor C8 and the negative pole of capacitor C8 are respectively connected to the C1+ and C1- terminals of the MAX232TTL-232 level conversion chip, the positive pole of capacitor C9 and the negative pole of capacitor C9 are respectively connected to the MAX232TTL-232 level conversion chip C2+ terminal and C2- terminal, the V- terminal of the MAX232TTL-232 level conversion chip is grounded after the negative electrode of the capacitor C10 is connected in series, the GND of the MAX232TTL-232 level conversion chip is grounded, and the T2OUT port and R2IN port of the TTL-232 level conversion chip pass through Port 1 and port 2 of the interface P2 are respectively connected to the RXD port and TXD port of the touch screen. The touch screen is powered by +12V through the interface P2, and the T2IN port and R2OUT port of the MAX232TTL-232 level conversion chip are connected to the microcontroller chip circuit ; Capacitor C7, capacitor C8, capacitor C9 and capacitor C10 are all 50V, 1uF.

Further, the single-chip microcomputer chip circuit includes an IAP15W4K58S4 single-chip microcomputer, a resistor R8, a resistor R9, a resistor R10, a capacitor C11, a capacitor C16 and a capacitor C12, and the VCC terminal +5V of the IAP15W4K58S4 single-chip microcomputer is powered; the P1.1 port of the IAP15W4K58S4 single-chip microcomputer, the resistor R8, The resistor R9, the resistor R10 and the P1.3 port of the IAP15W4K58S4 microcontroller are connected in series, the node between the resistor R8 and the resistor R9 is connected in series with the capacitor C11 and then grounded, and the node between the resistor R10 and the P1.3 port of the IAP15W4K58S4 microcontroller is connected in series with the capacitor C12 and then grounded. The node between the resistor R9 and the resistor R10 is connected in series with the capacitor R16 and grounded, and the node between the resistor R9 and the resistor R10 is connected to the LM358 operational amplifier; the value of the resistor R8 is 10K, the value of the resistor R9 is 10K, the value of the resistor R10 is 1K, and the capacitor C11, The value of capacitor C12 is 0.1uF; the node between resistor R9 and resistor R10 is connected to the in+ terminal of LM358 operational amplifier.

Further, the B+ end of the photoelectric encoder one is connected to the P3.2 port of the IAP15W4K58S4 single-chip microcomputer, and the A- end of the photoelectric encoder one is connected to the P2.2 port of the IAP15W4K58S4 single-chip microcomputer; the photoelectric encoder two The Z+ end of the photoelectric encoder is connected to the P2.4 port of the IAP15W4K58S4 single-chip microcomputer, the A- end of the photoelectric encoder two is connected to the P2.3 port of the IAP15W4K58S4 single-chip microcomputer, and the B+ end of the photoelectric encoder two is connected to the P2.3 port of the IAP15W4K58S4 single-chip microcomputer. P3.3 port.

Further, the anode of the light-emitting diode D1 is connected to the VCC terminal of the IAP15W4K58S4 microcontroller; the base series resistor R11 of the S9013 transistor is then connected to the P2.0 port of the IAP15W4K58S4 microcontroller.

Further, the T2IN port of the MAX232TTL-232 level conversion chip is connected to the P3.7 port of the IAP15W4K58S4 single-chip microcomputer, and the R2OUT port of the MAX232TTL-232 level conversion chip is connected to the P3.6 port of the IAP15W4K58S4 single-chip microcomputer.

Photoelectric encoder 1 and photoelectric encoder 2 output digital signals to obtain information such as the cycle, amplitude and phase difference of the balance wheel and stepping motor through the processing of the single-chip microcomputer. The period, amplitude and phase difference information are displayed on the touch screen; the touch screen module outputs corresponding data signals to the single-chip microcomputer according to the experimenter's operation, and the single-chip microcomputer performs corresponding operations according to these signals to realize the control of the stepping motor speed and coil current .

The Z+ port of the photoelectric encoder 2 is connected to the P2.4 port of the IAP15W4K58S4 microcontroller as a zero signal for zero calibration of the instrument. The stepping motor is powered by the switching power supply, and the P3 and P4 ports of the relay are respectively connected to the stepping motor and the switching power supply To realize the control of the stepper motor switch; the coil current control circuit adopts a two-stage amplified constant current output mode to supply power to the coil.

The TTL-232 level conversion circuit composed of MAX232 chip is connected between the touch screen and the IAP15W4K58S4 single-chip microcomputer, and the communication between the touch screen and the IAP15W4K58S4 single-chip microcomputer is realized by sending and receiving single-byte commands of the serial port.

The IAP15W4K58S4 microcontroller chip integrates a D/A chip to generate a PWM signal, and outputs a stable analog voltage signal through a low-pass filter circuit. The analog signal supplies power to the coil through an adjustable constant current source circuit based on the LM358 operational amplifier chip to achieve the balance wheel. The purpose of electromagnetic damping force of different sizes.

The IAP15W4K58S4 microcontroller chip outputs PWM signals with different duty ratios through program control, and generates pulse signals of different sizes according to different duty ratios to control the speed of the stepper motor.

The TL431 voltage regulator circuit is based on the TL431 chip, and the stable +5V voltage is obtained by adjusting the potentiometer to supply power to the IAP15W4K58S4 single-chip microcomputer chip.

The relay circuit controls the turn-on and turn-off of the triode S9013 by controlling the high and low levels of the electrical pins of the IAP15W4K58S4 single-chip microcomputer chip, and then controls the reed jump of the relay to realize the control of the power supply of the stepper motor.

Using this device can have the following advantages:

1. The structure of the instrument is simplified, and the experiment is highly operable;

2. The photoelectric encoder can be used to easily obtain high-precision balance wheel and stepping motor movement position information;

3. Increase the zero calibration function to greatly reduce the experimental error;

4. Display the cycle and amplitude curves of balance wheel and stepper motor in real time on the touch screen;

5. The operation control part avoids mechanical wear and improves the service life of the instrument.

The above is only the preferred embodiment of the utility model, and it should be pointed out that for those of ordinary skill in the art, without departing from the technical principle of the utility model, some improvements and deformations can also be made. And deformation should also be regarded as the protection scope of the present utility model.

Claims (10)

1. a kind of bohr resonance Instrument, including balance wheel and stepper motor, the balance wheel are arranged perpendicular to the ground, which is characterized in that Further include photoelectric encoder circuit, singlechip chip circuit, regulator circuit, coil current control circuit and touch screen communication electricity Road；The photoelectric encoder circuit includes photoelectric encoder one and photoelectric encoder two, the balance wheel and the photoelectric encoder One cooperation linkage, the stepper motor and the cooperation linkage of the photoelectric encoder two, the photoelectric encoder circuit, the voltage stabilizing Circuit, the coil current control circuit and the touch screen communicating circuit are electrically connected the singlechip chip circuit.

2. a kind of bohr resonance Instrument according to claim 1, which is characterized in that the output of the photoelectric encoder one Axis is fixedly and coaxially connected the center of the balance wheel, and the output shaft of the photoelectric encoder two is fixedly and coaxially connected the stepper motor Output shaft；The ends the VCC+5V of the photoelectric encoder one powers, the ends the GND ground connection of the photoelectric encoder one, the photoelectricity The ends B+, the ends A- of encoder one connect the singlechip chip circuit；The ends the VCC+5V of the photoelectric encoder two powers, described The ends GND of photoelectric encoder two are grounded, and the ends Z+, the ends A-, the ends B+ of the photoelectric encoder two connect the singlechip chip electricity Road.

3. a kind of bohr resonance Instrument according to claim 1, which is characterized in that the regulator circuit includes TL431 The moon of voltage-stablizer, resistance R1, resistance R2, capacitance C17, variable resistance R3, light emitting diode D1 and resistance R12, TL431 voltage-stablizer The one end pole K connection resistance R1, another termination+5V of resistance R1, capacitance C17 anodes connect the cathode K, capacitance C17 of TL431 voltage-stablizers Cathode connects the anode A of TL431 voltage-stablizers, between the anode A of TL431 voltage-stablizers, the reference pole R connections of TL431 voltage-stablizers simultaneously The anode A for joining resistance R2, TL431 voltage-stablizer is grounded, between the reference pole R of cathode K, TL431 voltage-stablizer of TL431 voltage-stablizers simultaneously Join variable resistance R3, light emitting diode D1 anodes are separately connected the cathode K of TL431 voltage-stablizers, the singlechip chip circuit, send out Optical diode D1 anodes+5V powers, and is grounded after light emitting diode D1 cathode series resistances R12.

4. a kind of bohr resonance Instrument according to claim 1, which is characterized in that including Switching Power Supply and relay electricity Road, the relay circuit include relay Q4, diode D2, resistance R11 and S9013 triode, the transmitting of S9013 triodes Pole is grounded, then the base series resistor R11 of S9013 triodes connects the singlechip chip circuit, the collection of S9013 triodes Electrode connects one end of relay Q4 coils, series diode D2 between relay Q4 coils both ends, and relay Q4 uses+ 12V powers, the ports P3, the ports P4, stepper motor and the Switching Power Supply series connection switched in relay Q4.

5. a kind of bohr resonance Instrument according to claim 1, which is characterized in that the coil current control circuit packet Include LM358 operational amplifiers, coil, capacitance C6, TIP50 triode, resistance R4, capacitance C5, resistance R5, resistance R6, resistance R7 With triode BU406, the balance wheel is between the coil, and the ends VCC- of LM358 operational amplifiers are grounded, LM358 operations The ends in+ of amplifier connect the singlechip chip circuit, after the ends in- series resistance R6, the resistance R7 of LM358 operational amplifiers Ground connection, the emitter e 3 of the node connecting triode BU406 between resistance R6, resistance R7, the ends in- of LM358 operational amplifiers Connect after the series capacitance C5 between the ends out1 of LM358 operational amplifiers, the ends the out1 series resistance R4 of LM358 operational amplifiers The base stage of TIP50 triodes is connect, base stage b1, the TIP50 triode of the emitter connecting triode BU406 of TIP50 triodes The cathode of the collector connection capacitance C6 of collector c2, the TIP50 triode of collector connecting triode BU406, capacitance C6 is just Pole+12V powers, and capacitance C6 connects forming circuit with coil.

6. a kind of bohr resonance Instrument according to claim 1, which is characterized in that the touch screen communicating circuit includes Touch screen, MAX232TTL-232 electrical level transferring chips, capacitance C7, capacitance C8, capacitance C9 and capacitance C10, MAX232TTL-232 The ends VCC of electrical level transferring chip, the+5V power supplies of capacitance C7 cathode, capacitance C7 anodes connect the ends V+, capacitance C8 anodes, capacitance C8 Cathode is separately connected the ends electrical level transferring chip C1+ MAX232TTL-232 and the ends C1-, and capacitance C9 anodes, capacitance C9 cathode connect respectively Connect the ends electrical level transferring chip C2+ MAX232TTL-232 and the ends C2-, the ends the V- series electrical of MAX232TTL-232 electrical level transferring chips It is grounded after holding C10 cathode, the GND ground connection of MAX232TTL-232 electrical level transferring chips,

The ports T2OUT of TTL-232 electrical level transferring chips, the ports R2IN by 1 port of interface P2,2 ports respectively and touch-control The ports RXD of screen, the connection of the ports TXD, touch screen are powered by interface P2 uses+12V, MAX232TTL-232 level conversion cores The ports T2IN, the ports R2OUT of piece are all connected with singlechip chip circuit.

7. a kind of bohr resonance Instrument according to claim 5, which is characterized in that the singlechip chip circuit includes IAP15W4K58S4 microcontrollers, resistance R8, resistance R9, resistance R10, capacitance C11, capacitance C16 and capacitance C12, The ends the VCC+5V of IAP15W4K58S4 microcontrollers powers；The ports P1.1 of IAP15W4K58S4 microcontrollers, resistance R8, resistance R9, The ports P1.3 of resistance R10 and IAP15W4K58S4 microcontroller are connected, the node series capacitance C11 between resistance R8, resistance R9 After be grounded, be grounded after the node series capacitance C12 between the ports P1.3 of resistance R10 and IAP15W4K58S4 microcontroller, resistance It is grounded after node series capacitance R16 between R9, resistance R10, the node connection LM358 operations between resistance R9, resistance R10 are put Big device；The ends in+ of node connection LM358 operational amplifiers between resistance R9, resistance R10.

8. a kind of bohr resonance Instrument according to claim 7, which is characterized in that the ends B+ of the photoelectric encoder one The ports P3.2 of the IAP15W4K58S4 microcontrollers are connected, described in the ends the A- connection of the photoelectric encoder one The ports P2.2 of IAP15W4K58S4 microcontrollers；The ends Z+ of the photoelectric encoder two connect the IAP15W4K58S4 microcontrollers The ports P2.4, the ends A- of the photoelectric encoder two connect the ports P2.3 of the IAP15W4K58S4 microcontrollers, the light The ends B+ of photoelectric coder two connect the ports P3.3 of the IAP15W4K58S4 microcontrollers.

9. according to any a kind of bohr resonance Instrument in claim 3,4 and 7, which is characterized in that light emitting diode D1 anodes connect the ends VCC of IAP15W4K58S4 microcontrollers；Then the base series resistor R11 of S9013 triodes is connected The ports P2.0 of IAP15W4K58S4 microcontrollers.

10. according to any a kind of bohr resonance Instrument in claim 6 and 7, which is characterized in that MAX232TTL- The ports P3.7 of the ports the T2IN connection IAP15W4K58S4 microcontrollers of 232 electrical level transferring chips, MAX232TTL-232 level turn Change the ports P3.6 of the ports the R2OUT connection IAP15W4K58S4 microcontrollers of chip.