CN103063293B - Circuit applied to sound intensity measurement of ultrasonic waves - Google Patents
Circuit applied to sound intensity measurement of ultrasonic waves Download PDFInfo
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- CN103063293B CN103063293B CN201310014853.6A CN201310014853A CN103063293B CN 103063293 B CN103063293 B CN 103063293B CN 201310014853 A CN201310014853 A CN 201310014853A CN 103063293 B CN103063293 B CN 103063293B
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Abstract
The invention discloses a circuit applied to sound intensity measurement of ultrasonic waves. The circuit applied to sound intensity measurement of the ultrasonic waves comprises a power supply management module, a signal processing module, a communication module, a control module, an input and output module and a communication module. The power supply management module comprises a 3.3V voltage switching circuit with AMS1117-3.3 as a core, the communication module is composed of RS232 connectors, the signal processing module is mainly composed of a voltage amplifier LM358 and a voltage comparator LM393ADR, the input and output module is mainly composed of a Nokia 5110 liquid crystal display and keys, and the control module is mainly composed of STC12C5628AD. The circuit applied to sound intensity measurement of the ultrasonic waves is small in size, capable of being made into a handheld type circuit, convenient to carry along and easy to operate. Batteries are utilized for providing electricity, power consumption is low and precision is high, and the functions of signal process, data process and output and the like are achieved.
Description
Technical field
The invention belongs to commercial measurement technical field, be specifically related to a kind of circuit that the ultrasound wave sound intensity is measured that is applied to.
Background technology
Along with the development of modern industry, ultrasonic effect has been widely used in reality, and the sound intensity (acoustical power) is topmost index of ultrasonic system.It has the increasing industry spot of direct impact need to measure hyperacoustic sound intensity on the result of use of ultrasonic equipment, work efficiency, but traditional sound intersity measurement method based on mimic channel, because making is complicated, precision is relatively low, power consumption is large, volume is not suitable for greatly carrying, is difficult to meet the measurement requirement at modern industry scene.
Summary of the invention
The present invention be directed to acoustic current intensity measurer power consumption larger, precision is relatively low and be not suitable for on-the-spot use and proposed a kind of circuit that the ultrasound wave sound intensity is measured that is applied to.
The present invention includes power management module, signal processing module, communication module, control module, input/output module and communication module.Each module all adopts existing mature technology, wherein, power management module comprises take the 3.3V voltage conversion circuit that AMS1117-3.3 is core, communication module is comprised of RS232 interface, signal processing module is mainly comprised of voltage amplifier LM358 and voltage comparator LM393ADR, input/output module is mainly comprised of Nokia's 5110 liquid crystal displays and button, and control module is mainly comprised of STC12C5628AD.The master controller STC12C5628AD of the voltage conversion circuit of the 3.3V that the AMS1117-3.3 of take is core in control module, Nokia's 5110 liquid crystal displays in output module, the RS232 circuit in communication module provide stable 3.3V voltage, and the 9V power supply before not changing provides 9V voltage into the voltage comparator LM393ADR in signal processing module and voltage amplifier LM358.In controller STC12C5628AD, preserve the needed comparing voltage value of voltage comparator LM393ADR, controller STC12C5628AD selects according to the button of input/output module, utilize the required comparative voltage of the inner D/A module output voltage comparer of controller STC12C5628AD, then and the voltage ratio of amplifying through LM358, produce the 12 pin PWM3 that pulsating wave outputs to controller STC12C5628AD, calculate the frequency of measured voltage signal.The measured voltage signal of another side outputs to the 18 pin of controller STC12C5628AD after voltage amplifier LM358 amplifies, the magnitude of voltage of the measured signal that the AD resume module of controller obtains, calculates the sound intensity value of measured signal and value is outputed to Nokia's 5110 liquid crystal displays of input/output module.Wherein the RS232 interface in communication module for and outer computer between transmit data.
Power management module is comprised of 9V power supply and 3.3V voltage conversion circuit, comprises power management chip AMS1117-3.3, the first capacitor C 1, the second capacitor C 2, the 3rd capacitor C 3, the 4th capacitor C 4, the first diode D1, the first switch S 1.One end of the first capacitor C 1 is connected with the anode of 9V power supply, the first diode D1, other end ground connection; The 3rd pin of one end of the negative electrode of the first diode D1 and the second capacitor C 2, power management chip AMS1117-3.3 is connected; One end of the second pin of power management chip AMS1117-3.3 and one end of the 3rd capacitor C 3, the 4th capacitor C 4, the 4th pin of the first switch S 1 are connected; The first pin ground connection of power management chip AMS1117-3.3, the other end of the second capacitor C 2 with the other end of the 3rd capacitor C 3, the 5th pin of the other end of the 4th capacitor C 4, the first switch S 1 be connected and ground connection.
Signal processing module comprises measured signal input interface P1, voltage amplifier LM358, voltage comparator LM393ADR, the first resistance R 1, the second resistance R 2, the 3rd resistance R 3, the 4th resistance R 4, the 5th resistance R 5, the 6th resistance R 6, the 7th resistance R 7, the 8th resistance R 8, the 5th capacitor C 5, the 6th capacitor C 6, the 7th capacitor C 7, the 8th capacitor C 8.One end of the first resistance R 1 is connected with a pin surveying signal input interface P1, the other end is connected with one end of the 3rd resistance R 3, one end of the 4th resistance R 4 and receives the 3rd pin of voltage amplifier LM358, and the other end of the 3rd resistance R 3 is connected and receives 9V power supply with one end of the 5th capacitor C 5; One end of the second resistance R 2 is connected with one end of the 5th resistance R 5 and receives the second pin of voltage amplifier LM358, the other end ground connection of the second resistance R 2; The other end of the 5th resistance R 5 is connected with one end of the 6th resistance R 6 and receives the first pin of voltage amplifier LM358, the other end of the 6th resistance R 6 is connected with one end of the 6th capacitor C 6, one end of the 7th resistance R 7, and one end of the 7th resistance R 7 is connected with one end of the 7th capacitor C 7, one end of the 8th resistance R 8; The other end of the 8th resistance R 8 is connected with one end of the 8th capacitor C 8 and receives the 18 pin of controller STC12C5628AD; The second pin of surveying signal input interface P1 with the other end of the 5th capacitor C 5, the 4th pin of the other end of the 4th resistance R 4, voltage amplifier LM358, the other end of the 6th capacitor C 6, the other end of the other end of the 7th capacitor C 7, the 8th capacitor C 8 is connected also ground connection; The 8th pin of voltage amplifier LM358 is received 9V power supply.One end that the first pin of voltage comparator LM393ADR is received the 14 resistance R 14, the second pin of voltage comparator LM393ADR is received one end that the 18 resistance R 18 is connected with the 14 capacitor C 14, the 3rd pin of voltage comparator LM393ADR is received the 18 pin of controller STC12C5628AD, the 4th pin ground connection of voltage comparator LM393ADR, the 8th pin of voltage comparator LM393ADR is received 9V power supply.
Control module comprises controller STC12C5628AD, the 9th capacitor C 9, the tenth capacitor C the 10, the 11 capacitor C the 11, the 12 capacitor C the 12, the 13 capacitor C the 13, the 14 capacitor C 14, the 9th resistance R the 9, the 14 resistance R the 14, the 17 resistance R the 17, the 18 resistance R 18 and the first crystal oscillator Y1.The positive pole of one end of the 9th capacitor C 9 and the tenth capacitor C 10, the 28 pin of controller STC12C5628AD are connected and are connected to 3.3V power supply, and the negative pole of the other end of the 9th capacitor C 9 and the tenth capacitor C 10 is connected and ground connection, one end of the 9th resistance R 9 is received the 3rd pin of controller STC12C5628AD, the other end ground connection of the 9th resistance R 9, the 4th pin of controller STC12C5628AD is received the 11 pin of serial communication electric level interface conversion chip MAX3232, and the 5th pin of controller STC12C5628AD is received the 12 pin of serial communication electric level interface conversion chip MAX3232, one end of the 11 capacitor C 11 is connected with one end of the first crystal oscillator Y1 and receives the 6th pin of controller STC12C5628AD, one end of the 12 capacitor C 12 is connected with one end of the first crystal oscillator Y1 and receives the 7th pin of controller STC12C5628AD, and the 11 other end of capacitor C 11 and the other end of the 12 capacitor C 12 are connected and ground connection, one end that the 12 pin of controller STC12C5628AD is received the 14 resistance R 14, the other end of the 14 resistance R 14 is received the first pin of voltage comparator LM393ADR, the 14 pin ground connection of controller STC12C5628AD, the 17 one end of resistance R 17 and one end of the 18 resistance R 18, one end of the 13 capacitor C 13 is connected, the 18 other end of resistance R 18 and one end of the 14 capacitor C 14 are connected and receive the second pin of voltage comparator LM393ADR, the other end of the 13 capacitor C 13 and the 14 capacitor C 14 is connected and ground connection, the other end of the 17 resistance R 17 is received the 17 pin of controller STC12C5628AD, the 18 pin of controller STC12C5628AD is received one end that the 8th resistance R 8 is connected with the 8th capacitor C 8, the 19 pin of controller STC12C5628AD is received one end that the 3rd button K3 is connected with the 19 electric capacity R19, the 20 pin of controller STC12C5628AD is received one end that the second button K2 is connected with the 20 resistance R 20, and the 21 pin of controller STC12C5628AD is received one end that the first button K1 is connected with the 21 resistance R 21.One end that the 22 pin of controller STC12C5628AD is received the 16 resistance R 16, one end that the 23 pin of controller STC12C5628AD is received the 15 resistance R 15, one end that the 24 pin of controller STC12C5628AD is received the 13 resistance R 13, one end that the 25 pin of controller STC12C5628AD is received the 12 resistance R 12, one end that the 26 pin of controller STC12C5628AD is received the 11 resistance R 11, one end that the 27 pin of controller STC12C5628AD is received the tenth resistance R 10.
Input/output module comprises the first button K1, the second button K2, the 3rd button K3, the tenth resistance R the 10, the 11 resistance R the 11, the 12 resistance R the 12, the 13 resistance R the 13, the 15 resistance R the 15, the 16 resistance R the 16, the 19 resistance R the 19, the 20 resistance R the 20, the 21 5110 liquid crystal display P2 of resistance R 21He Nokia.First one end of button K1 and one end of the 21 resistance R 21 are connected and receive the 21 pin of controller STC12C5628AD, second one end of button K2 and one end of the 20 resistance R 20 are connected and receive the 20 pin of controller STC12C5628AD, and the 3rd one end of button K3 and one end of the 19 resistance R 19 are connected and receive the 19 pin of controller STC12C5628AD; The other end of the first button K1 is connected with the other end of the second button K2, the other end of the 3rd button K3 and ground connection; The other end of the 19 resistance R 19 is connected and receives 3.3V power supply with the 20 other end of resistance R 20, the other end of the 21 resistance R 21.One end of the tenth resistance R 10 is received the 27 pin of controller STC12C5628AD, and the other end is received the 3rd pin of the 5110 liquid crystal display P2 of Nokia; One end of the 11 resistance R 11 is received the 26 pin of controller STC12C5628AD, and the other end is received the 4th pin of the 5110 liquid crystal display P2 of Nokia; One end of the 12 resistance R 12 is received the 25 pin of controller STC12C5628AD, and the other end is received the 5th pin of the 5110 liquid crystal display P2 of Nokia; One end of the 13 resistance R 13 is received the 24 pin of controller STC12C5628AD, and the other end is received the 6th pin of the 5110 liquid crystal display P2 of Nokia; One end of the 15 resistance R 15 is received the 23 pin of controller STC12C5628AD, and the other end is received the 7th pin of the 5110 liquid crystal display P2 of Nokia; One end of the 16 resistance R 16 is received the 22 pin of controller STC12C5628AD, and the other end is received the 8th pin of the 5110 liquid crystal display P2 of Nokia; The first pin of the 5110 liquid crystal display P2 of Nokia is received 3.3V power supply, the second pin ground connection of the 5110 liquid crystal display P2 of Nokia.
Communication module comprises the 15 capacitor C the 15, the 16 capacitor C the 16, the 17 capacitor C the 17, the 18 capacitor C the 18, the 19 capacitor C 19, serial communication electric level interface conversion chip MAX3232, serial ports COM0.The first pin and the 3rd pin of serial communication electric level interface conversion chip MAX3232 are connected on respectively the two ends of the 18 capacitor C 18, and the 4th and the 5th pin of serial communication electric level interface conversion chip MAX3232 is connected on respectively the two ends of the 19 capacitor C 19; The second pin of serial communication electric level interface conversion chip MAX3232 connects one end of the 16 capacitor C 16, the 6th pin of serial communication electric level interface conversion chip MAX3232 connects one end of the 17 capacitor C 17, the 16 pin of serial communication electric level interface conversion chip MAX3232 and one end of the 15 capacitor C 15 are connected and receive 3.3V power supply, the other end of the 15 capacitor C 15 with the 16 other end of capacitor C 16, the 15 pin of the other end of the 17 capacitor C 17, serial communication electric level interface conversion chip MAX3232 is connected and ground connection; The 11 pin of serial communication electric level interface conversion chip MAX3232 connects the 4th pin of control module master controller STC12C5628AD, and the 12 pin of serial communication electric level interface conversion chip MAX3232 connects the 5th pin of master controller STC12C5628AD; The 14 pin of serial communication electric level interface conversion chip MAX3232 connects the second pin of serial ports COM0, and the 13 pin of serial communication electric level interface conversion chip MAX3232 connects the 3rd pin of serial ports COM0, the 5th pin ground connection of serial ports COM0.
Beneficial effect of the present invention: this device volume is little, can make hand-held, easy to carry, simple to operate.Adopt powered battery, low in energy consumption, precision is high; Possessing signal processes, the function such as data processing and output, user can also according to actual field situation, according to button, adjustment be input to the comparative voltage of voltage comparator LM393ADR, control transducer output and process magnitude of voltage and the frequency values obtaining, calculate fast the sound intensity in surveyed region, utilize Nokia's 5110 liquid crystal displays as visual interface, show current sound intensity value, and can utilize serial ports to transfer data to fast computing machine and carry out recording processing.The present invention is only concerned about the ultrasound wave actual strength on that aspect of measuring at place, and this is only the data that client is concerned about most in fact.
Accompanying drawing explanation
Fig. 1 is hardware configuration schematic diagram of the present invention;
Fig. 2 is 3.3V voltage conversion circuit schematic diagram of the present invention;
Fig. 3 is communication module circuit theory diagrams of the present invention;
Fig. 4 is signal processing module voltage amplifier circuit schematic diagram of the present invention;
Fig. 5 is signal processing module voltage comparator circuit schematic diagram of the present invention;
Fig. 6 is load module circuit theory diagrams of the present invention;
Fig. 7 is output module circuit theory diagrams of the present invention;
Fig. 8 is control module circuit theory diagrams of the present invention.
Embodiment
Below in conjunction with accompanying drawing, modules of the present invention is done to specific description.
As shown in Figure 1, the present invention includes power management module 1, signal processing module 2, control module 3, input/output module 4 and communication module 5.Each module all adopts existing mature technology, wherein, power management module comprises 9V power supply 1-1 and 3.3V voltage transformation module 1-2, signal processing module 2 comprises voltage amplification module 2-1 and voltage comparison module 2-2, and input/output module 4 comprises keyboard input module 4-1 and liquid crystal display display module 4-2.9V power supply 1-1 in power management module 1 provides stable 9V voltage for the voltage amplification module 2-1 in signal processing module 2 and voltage comparison module 2-2, and the 3.3V voltage transformation module 1-2 in power management module 1 provides stable 3.3V voltage for the keyboard input module 4-1 in control module 3, communication module 5 and input/output module 4 and liquid crystal display display module 4-2.Controller STC12C5628AD in control module 3 preserves the input comparative voltage that in signal processing module 2, voltage comparison module 2-2 needs, by the inside D/A module in controller STC12C5628AD at the 17 pin output voltage, keyboard input module 4-1 in input/output module 4 can this comparing voltage value of manual adjustments size, voltage comparator LM393ADR takes the comparative voltage of this setting and the voltage signal comparison of amplifying through voltage amplification module 2-1, output to the P2.4 pin of controller STC12C5628AD, simultaneously, the voltage signal amplifying through voltage amplification module 2-1 outputs to the 18 pin of controller STC12C5628AD, controller STC12C5628AD processes and calculates sound intensity value, output to liquid crystal display display module 4-2.Wherein communication module 5 for and outer computer between transmit data.
As shown in Figure 2, power management module is comprised of 9V power supply and 3.3V voltage conversion circuit, comprises power management chip AMS1117-3.3, the first capacitor C 1, the second capacitor C 2, the 3rd capacitor C 3, the 4th capacitor C 4, the first diode D1, the first switch S 1.One end of the first capacitor C 1 is connected with the anode of 9V power supply, the first diode D1, other end ground connection; The 3rd pin of one end of the negative electrode of the first diode D1 and the second capacitor C 2, power management chip AMS1117-3.3 is connected; The second pin of power management chip AMS1117-3.3 is connected with the 4th pin of one end of the 3rd capacitor C 3, the 4th capacitor C 4, the first switch S 1; The first pin ground connection of power management chip AMS1117-3.3, the other end of the second capacitor C 2 with the other end of the 3rd capacitor C 3, the 5th pin of the other end of the 4th capacitor C 4, the first switch S 1 be connected and ground connection.
As shown in Figure 3, communication module comprises the 15 capacitor C the 15, the 16 capacitor C the 16, the 17 capacitor C the 17, the 18 capacitor C the 18, the 19 capacitor C 19, serial communication electric level interface conversion chip MAX3232, serial ports COM0.The first pin and the 3rd pin of serial communication electric level interface conversion chip MAX3232 are connected on respectively the two ends of the 18 capacitor C 18, and the 4th and the 5th pin of serial communication electric level interface conversion chip MAX3232 is connected on respectively the two ends of the 19 capacitor C 19; The second pin of serial communication electric level interface conversion chip MAX3232 connects one end of the 16 capacitor C 16, the 6th pin of serial communication electric level interface conversion chip MAX3232 connects one end of the 17 capacitor C 17, the 16 pin of serial communication electric level interface conversion chip MAX3232 and one end of the 15 capacitor C 15 are connected and receive 3.3V power supply, the other end of the 15 capacitor C 15 with the 16 other end of capacitor C 16, the 15 pin of the other end of the 17 capacitor C 17, serial communication electric level interface conversion chip MAX3232 is connected and ground connection; The 11 pin of serial communication electric level interface conversion chip MAX3232 connects the 4th pin of control module master controller STC12C5628AD, and the 12 pin of serial communication electric level interface conversion chip MAX3232 connects the 5th pin of master controller STC12C5628AD; The 14 pin of serial communication electric level interface conversion chip MAX3232 connects the second pin of serial ports COM0, and the 13 pin of serial communication electric level interface conversion chip MAX3232 connects the 3rd pin of serial ports COM0, the 5th pin ground connection of serial ports COM0.
As shown in Figure 4, the voltage amplification module in signal processing module comprises signal input interface P1, voltage amplifier LM358, the first resistance R 1, the second resistance R 2, the 3rd resistance R 3, the 4th resistance R 4, the 5th resistance R 5, the 6th resistance R 6, the 7th resistance R 7, the 8th resistance R 8, the 5th capacitor C 5, the 6th capacitor C 6, the 7th capacitor C 7, the 8th capacitor C 8.One end of the first resistance R 1 is connected with a pin of first row pin P1, the other end is connected with one end of the 3rd resistance R 3, one end of the 4th resistance R 4 and receives the 3rd pin of voltage amplifier LM358, and the other end of the 3rd resistance R 3 is connected and receives 9V power supply with one end of the 5th capacitor C 5; One end of the second resistance R 2 is connected with one end of the 5th resistance R 5 and receives the second pin of voltage amplifier LM358, the other end ground connection of the second resistance R 2; The other end of the 5th resistance R 5 is connected with one end of the 6th resistance R 6 and receives the first pin of voltage amplifier LM358, the other end of the 6th resistance R 6 is connected with one end of the 6th capacitor C 6, one end of the 7th resistance R 7, and one end of the 7th resistance R 7 is connected with one end of the 7th capacitor C 7, one end of the 8th resistance R 8; The other end of the 8th resistance R 8 is connected with one end of the 8th capacitor C 8 and receives the 18 pin of controller STC12C5628AD; The second pin of first row pin P1 with the other end of the other end of the 5th capacitor C 5, the 4th resistance R 4, the 4th pin of voltage amplifier LM358, the other end of the 6th capacitor C 6, the other end of the other end of the 7th capacitor C 7, the 8th capacitor C 8 are connected and ground connection; The 8th pin of voltage amplifier LM358 is received 9V power supply.
As shown in Figure 5, the voltage comparison module in signal processing module is connected after amplifying by voltage comparator chip LM393ADR detection signal and controller STC12C5628AD realize.One end that the first pin of voltage comparator LM393ADR is received the 14 resistance R 14, the second pin of voltage comparator LM393ADR is received one end that the 18 resistance R 18 is connected with the 14 capacitor C 14, the 3rd pin of voltage comparator LM393ADR is received the 18 pin of controller STC12C5628AD, the 4th pin ground connection of voltage comparator LM393ADR, the 8th pin of voltage comparator LM393ADR is received 9V power supply.
As shown in Figure 6, the load module in input/output module comprises the first button K1, the second button K2, the 3rd button K3, the 19 resistance R the 19, the 20 resistance R the 20, the 21 resistance R 21.First one end of button K1 and one end of the 21 resistance R 21 are connected and receive the 21 pin of controller STC12C5628AD, second one end of button K2 and one end of the 20 resistance R 20 are connected and receive the 20 pin of controller STC12C5628AD, and the 3rd one end of button K3 and one end of the 19 resistance R 19 are connected and receive the 19 pin of controller STC12C5628AD; The other end of the first button K1 is connected with the other end of the second button K2, the other end of the 3rd button K3 and ground connection; The other end of the 19 resistance R 19 is connected and receives 3.3V power supply with the 20 other end of resistance R 20, the other end of the 21 resistance R 21.
As shown in Figure 7, the output module in input/output module comprises the tenth resistance R the 10, the 11 resistance R the 11, the 12 resistance R the 12, the 13 resistance R the 13, the 15 resistance R the 15, the 16 5110 liquid crystal display P2 of resistance R 16He Nokia.One end of the tenth resistance R 10 is received the 27 pin of controller STC12C5628AD, and the other end is received the 3rd pin of the 5110 liquid crystal display P2 of Nokia; One end of the 11 resistance R 11 is received the 26 pin of controller STC12C5628AD, and the other end is received the 4th pin of the 5110 liquid crystal display P2 of Nokia; One end of the 12 resistance R 12 is received the 25 pin of controller STC12C5628AD, and the other end is received the 5th pin of the 5110 liquid crystal display P2 of Nokia; One end of the 13 resistance R 13 is received the 24 pin of controller STC12C5628AD, and the other end is received the 6th pin of the 5110 liquid crystal display P2 of Nokia; One end of the 15 resistance R 15 is received the 23 pin of controller STC12C5628AD, and the other end is received the 7th pin of the 5110 liquid crystal display P2 of Nokia; One end of the 16 resistance R 16 is received the 22 pin of controller STC12C5628AD, and the other end is received the 8th pin of the 5110 liquid crystal display P2 of Nokia; The first pin of the 5110 liquid crystal display P2 of Nokia is received 3.3V power supply, the second pin ground connection of the 5110 liquid crystal display P2 of Nokia.
As shown in Figure 8, control module comprises controller STC12C5628AD, the 9th capacitor C 9, the tenth capacitor C the 10, the 11 capacitor C the 11, the 12 capacitor C the 12, the 13 capacitor C the 13, the 14 capacitor C 14, the 9th resistance R the 9, the 14 resistance R the 14, the 17 resistance R the 17, the 18 resistance R 18 and the first crystal oscillator Y1.The positive pole of one end of the 9th capacitor C 9 and the tenth capacitor C 10, the 28 pin of controller STC12C5628AD are connected and are connected to 3.3V power supply, and the negative pole of the other end of the 9th capacitor C 9 and the tenth capacitor C 10 is connected and ground connection, one end of the 9th resistance R 9 is received the 3rd pin of controller STC12C5628AD, the other end ground connection of the 9th resistance R 9, the 4th pin of controller STC12C5628AD is received the 11 pin of serial communication electric level interface conversion chip MAX3232, and the 5th pin of controller STC12C5628AD is received the 12 pin of serial communication electric level interface conversion chip MAX3232, one end of the 11 capacitor C 11 is connected with one end of the first crystal oscillator Y1 and receives the 6th pin of controller STC12C5628AD, one end of the 12 capacitor C 12 is connected with one end of the first crystal oscillator Y1 and receives the 7th pin of controller STC12C5628AD, and the 11 other end of capacitor C 11 and the other end of the 12 capacitor C 12 are connected and ground connection, one end that the 12 pin of controller STC12C5628AD is received the 14 resistance R 14, the other end of the 14 resistance R 14 is received the first pin of voltage comparator LM393ADR, the 14 pin ground connection of controller STC12C5628AD, the 17 one end of resistance R 17 and one end of the 18 resistance R 18, one end of the 13 capacitor C 13 is connected, the 18 other end of resistance R 18 and one end of the 14 capacitor C 14 are connected and receive the second pin of voltage comparator LM393ADR, the other end of the 13 capacitor C 13 and the 14 capacitor C 14 is connected and ground connection, the other end of the 17 resistance R 17 is received the 17 pin of controller STC12C5628AD, the 18 pin of controller STC12C5628AD is received one end that the 8th resistance R 8 is connected with the 8th capacitor C 8, the 19 pin of controller STC12C5628AD is received one end that the 3rd button K3 can be connected with the 19 electric capacity R19, the 20 pin of controller STC12C5628AD is received one end that the second button K2 is connected with the 20 resistance R 20, and the 21 pin of controller STC12C5628AD is received one end that the first button K1 is connected with the 21 resistance R 21.One end that the 22 pin of controller STC12C5628AD is received the 16 resistance R 16, one end that the 23 pin of controller STC12C5628AD is received the 15 resistance R 15, one end that the 24 pin of controller STC12C5628AD is received the 13 resistance R 13, one end that the 25 pin of controller STC12C5628AD is received the 12 resistance R 12, one end that the 26 pin of controller STC12C5628AD is received the 11 resistance R 11, one end that the 27 pin of controller STC12C5628AD is received the tenth resistance R 10.
Claims (1)
1. be applied to the circuit that the ultrasound wave sound intensity is measured, comprise power management module, signal processing module, control module, input/output module and communication module, it is characterized in that: power management module comprises take the 3.3V voltage conversion circuit that AMS1117-3.3 is core, communication module is comprised of RS232 interface, signal processing module is mainly comprised of voltage amplifier LM358 and voltage comparator LM393ADR, input/output module is mainly comprised of Nokia's 5110 liquid crystal displays and button, and control module is mainly comprised of controller STC12C5628AD;
Described power management module is comprised of 9V power supply and 3.3V voltage conversion circuit, comprises power management chip AMS1117-3.3, the first capacitor C 1, the second capacitor C 2, the 3rd capacitor C 3, the 4th capacitor C 4, the first diode D1, the first switch S 1; One end of the first capacitor C 1 is connected with the anode of 9V power supply, the first diode D1, other end ground connection; The 3rd pin of one end of the negative electrode of the first diode D1 and the second capacitor C 2, power management chip AMS1117-3.3 is connected; One end of the second pin of power management chip AMS1117-3.3 and one end of the 3rd capacitor C 3, the 4th capacitor C 4, the 4th pin of the first switch S 1 are connected; The first pin ground connection of power management chip AMS1117-3.3, the other end of the second capacitor C 2 with the other end of the 3rd capacitor C 3, the 5th pin of the other end of the 4th capacitor C 4, the first switch S 1 be connected and ground connection;
Described signal processing module comprises measured signal input interface P1, voltage amplifier LM358, voltage comparator LM393ADR, the first resistance R 1, the second resistance R 2, the 3rd resistance R 3, the 4th resistance R 4, the 5th resistance R 5, the 6th resistance R 6, the 7th resistance R 7, the 8th resistance R 8, the 5th capacitor C 5, the 6th capacitor C 6, the 7th capacitor C 7, the 8th capacitor C 8; One end of the first resistance R 1 is connected with a pin of measured signal input interface P1, the other end is connected with one end of the 3rd resistance R 3, one end of the 4th resistance R 4 and receives the 3rd pin of voltage amplifier LM358, and the other end of the 3rd resistance R 3 is connected and receives 9V power supply with one end of the 5th capacitor C 5; One end of the second resistance R 2 is connected with one end of the 5th resistance R 5 and receives the second pin of voltage amplifier LM358, the other end ground connection of the second resistance R 2; The other end of the 5th resistance R 5 is connected with one end of the 6th resistance R 6 and receives the first pin of voltage amplifier LM358, the other end of the 6th resistance R 6 is connected with one end of the 6th capacitor C 6, one end of the 7th resistance R 7, and one end of the 7th resistance R 7 is connected with one end of the 7th capacitor C 7, one end of the 8th resistance R 8; The other end of the 8th resistance R 8 is connected with one end of the 8th capacitor C 8 and receives the 18 pin of controller STC12C5628AD; The second pin of measured signal input interface P1 with the other end of the other end of the 5th capacitor C 5, the 4th resistance R 4, the 4th pin of voltage amplifier LM358, the other end of the 6th capacitor C 6, the other end of the other end of the 7th capacitor C 7, the 8th capacitor C 8 are connected and ground connection; The 8th pin of voltage amplifier LM358 is received 9V power supply; One end that the first pin of voltage comparator LM393ADR is received the 14 resistance R 14, the second pin of voltage comparator LM393ADR is received one end that the 18 resistance R 18 is connected with the 14 capacitor C 14, the 3rd pin of voltage comparator LM393ADR is received the 18 pin of controller STC12C5628AD, the 4th pin ground connection of voltage comparator LM393ADR, the 8th pin of voltage comparator LM393ADR is received 9V power supply;
Described control module comprises controller STC12C5628AD, the 9th capacitor C 9, the tenth capacitor C the 10, the 11 capacitor C the 11, the 12 capacitor C the 12, the 13 capacitor C the 13, the 14 capacitor C 14, the 9th resistance R the 9, the 14 resistance R the 14, the 17 resistance R the 17, the 18 resistance R 18 and the first crystal oscillator Y1, the positive pole of one end of the 9th capacitor C 9 and the tenth capacitor C 10, the 28 pin of controller STC12C5628AD are connected and are connected to 3.3V power supply, and the negative pole of the other end of the 9th capacitor C 9 and the tenth capacitor C 10 is connected and ground connection, one end of the 9th resistance R 9 is received the 3rd pin of controller STC12C5628AD, the other end ground connection of the 9th resistance R 9, the 4th pin of controller STC12C5628AD is received the 11 pin of serial communication electric level interface conversion chip MAX3232, and the 5th pin of controller STC12C5628AD is received the 12 pin of serial communication electric level interface conversion chip MAX3232, one end of the 11 capacitor C 11 is connected with one end of the first crystal oscillator Y1 and receives the 6th pin of controller STC12C5628AD, one end of the 12 capacitor C 12 is connected with one end of the first crystal oscillator Y1 and receives the 7th pin of controller STC12C5628AD, and the 11 other end of capacitor C 11 and the other end of the 12 capacitor C 12 are connected and ground connection, one end that the 12 pin of controller STC12C5628AD is received the 14 resistance R 14, the other end of the 14 resistance R 14 is received the first pin of voltage comparator LM393ADR, the 14 pin ground connection of controller STC12C5628AD, the 17 one end of resistance R 17 and one end of the 18 resistance R 18, one end of the 13 capacitor C 13 is connected, the 18 other end of resistance R 18 and one end of the 14 capacitor C 14 are connected and receive the second pin of voltage comparator LM393ADR, the other end of the 13 capacitor C 13 and the 14 capacitor C 14 is connected and ground connection, the other end of the 17 resistance R 17 is received the 17 pin of controller STC12C5628AD, the 18 pin of controller STC12C5628AD is received one end that the 8th resistance R 8 is connected with the 8th capacitor C 8, the 19 pin of controller STC12C5628AD is received one end that the 3rd button K3 is connected with the 19 electric capacity R19, the 20 pin of controller STC12C5628AD is received one end that the second button K2 is connected with the 20 resistance R 20, and the 21 pin of controller STC12C5628AD is received one end that the first button K1 is connected with the 21 resistance R 21, one end that the 22 pin of controller STC12C5628AD is received the 16 resistance R 16, one end that the 23 pin of controller STC12C5628AD is received the 15 resistance R 15, one end that the 24 pin of controller STC12C5628AD is received the 13 resistance R 13, one end that the 25 pin of controller STC12C5628AD is received the 12 resistance R 12, one end that the 26 pin of controller STC12C5628AD is received the 11 resistance R 11, one end that the 27 pin of controller STC12C5628AD is received the tenth resistance R 10,
Described input/output module comprises the first button K1, the second button K2, the 3rd button K3, the tenth resistance R the 10, the 11 resistance R the 11, the 12 resistance R the 12, the 13 resistance R the 13, the 15 resistance R the 15, the 16 resistance R the 16, the 19 resistance R the 19, the 20 resistance R the 20, the 21 5110 liquid crystal display P2 of resistance R 21He Nokia; First one end of button K1 and one end of the 21 resistance R 21 are connected and receive the 21 pin of controller STC12C5628AD, second one end of button K2 and one end of the 20 resistance R 20 are connected and receive the 20 pin of controller STC12C5628AD, and the 3rd one end of button K3 and one end of the 19 resistance R 19 are connected and receive the 19 pin of controller STC12C5628AD; The other end of the first button K1 is connected with the other end of the second button K2, the other end of the 3rd button K3 and ground connection; The other end of the 19 resistance R 19 is connected with the 20 other end of resistance R 20, the other end of the 21 resistance R 21 and receives 3.3V power supply; One end of the tenth resistance R 10 is received the 27 pin of controller STC12C5628AD, and the other end is received the 3rd pin of the 5110 liquid crystal display P2 of Nokia; One end of the 11 resistance R 11 is received the 26 pin of controller STC12C5628AD, and the other end is received the 4th pin of the 5110 liquid crystal display P2 of Nokia; One end of the 12 resistance R 12 is received the 25 pin of controller STC12C5628AD, and the other end is received the 5th pin of the 5110 liquid crystal display P2 of Nokia; One end of the 13 resistance R 13 is received the 24 pin of controller STC12C5628AD, and the other end is received the 6th pin of the 5110 liquid crystal display P2 of Nokia; One end of the 15 resistance R 15 is received the 23 pin of controller STC12C5628AD, and the other end is received the 7th pin of the 5110 liquid crystal display P2 of Nokia; One end of the 16 resistance R 16 is received the 22 pin of controller STC12C5628AD, and the other end is received the 8th pin of the 5110 liquid crystal display P2 of Nokia; The first pin of the 5110 liquid crystal display P2 of Nokia is received 3.3V power supply, the second pin ground connection of the 5110 liquid crystal display P2 of Nokia;
Described communication module comprises the 15 capacitor C the 15, the 16 capacitor C the 16, the 17 capacitor C the 17, the 18 capacitor C the 18, the 19 capacitor C 19, serial communication electric level interface conversion chip MAX3232, serial ports COM0; The first pin and the 3rd pin of serial communication electric level interface conversion chip MAX3232 are connected on respectively the two ends of the 18 capacitor C 18, and the 4th and the 5th pin of serial communication electric level interface conversion chip MAX3232 is connected on respectively the two ends of the 19 capacitor C 19; The second pin of serial communication electric level interface conversion chip MAX3232 connects one end of the 16 capacitor C 16, the 6th pin of serial communication electric level interface conversion chip MAX3232 connects one end of the 17 capacitor C 17, the 16 pin of serial communication electric level interface conversion chip MAX3232 and one end of the 15 capacitor C 15 are connected and receive 3.3V power supply, the other end of the 15 capacitor C 15 with the 16 other end of capacitor C 16, the 15 pin of the other end of the 17 capacitor C 17, serial communication electric level interface conversion chip MAX3232 is connected and ground connection; The 11 pin of serial communication electric level interface conversion chip MAX3232 connects the 4th pin of control module master controller STC12C5628AD, and the 12 pin of serial communication electric level interface conversion chip MAX3232 connects the 5th pin of master controller STC12C5628AD; The 14 pin of serial communication electric level interface conversion chip MAX3232 connects the second pin of serial ports COM0, and the 13 pin of serial communication electric level interface conversion chip MAX3232 connects the 3rd pin of serial ports COM0, the 5th pin ground connection of serial ports COM0.
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| CN103528669B (en) * | 2013-09-29 | 2015-03-25 | 杭州电子科技大学 | Ultrasonic sound intensity detection circuit |
| CN108343628A (en) * | 2018-04-16 | 2018-07-31 | 徐州徐开电气有限公司 | Integrated smoke controlling blower motor controller |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4408494A (en) * | 1981-07-30 | 1983-10-11 | Ocean Ecology Ltd. | Ultrasound measuring instrument |
| DE4003774A1 (en) * | 1990-02-08 | 1991-08-14 | Fraunhofer Ges Forschung | Sound intensity compensation system for ultrasonic range sensor - uses measurement of spatial sound field to obtain values for compensation voltage characteristic |
| CN201402182Y (en) * | 2009-04-29 | 2010-02-10 | 中国船舶重工集团公司第七一一研究所 | Sound field measuring instrument |
| CN201548694U (en) * | 2009-12-03 | 2010-08-11 | 河海大学 | Short distance ultrasound measurement module |
| CN203053564U (en) * | 2013-01-15 | 2013-07-10 | 杭州成功超声电源技术有限公司 | Circuit for ultrasonic sound intensity measurement |
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2013
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4408494A (en) * | 1981-07-30 | 1983-10-11 | Ocean Ecology Ltd. | Ultrasound measuring instrument |
| DE4003774A1 (en) * | 1990-02-08 | 1991-08-14 | Fraunhofer Ges Forschung | Sound intensity compensation system for ultrasonic range sensor - uses measurement of spatial sound field to obtain values for compensation voltage characteristic |
| CN201402182Y (en) * | 2009-04-29 | 2010-02-10 | 中国船舶重工集团公司第七一一研究所 | Sound field measuring instrument |
| CN201548694U (en) * | 2009-12-03 | 2010-08-11 | 河海大学 | Short distance ultrasound measurement module |
| CN203053564U (en) * | 2013-01-15 | 2013-07-10 | 杭州成功超声电源技术有限公司 | Circuit for ultrasonic sound intensity measurement |
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