CN106840369A - A kind of ultrasonic sound intensity detection circuit for being applied to traditional Chinese medicine extraction - Google Patents
A kind of ultrasonic sound intensity detection circuit for being applied to traditional Chinese medicine extraction Download PDFInfo
- Publication number
- CN106840369A CN106840369A CN201710086218.7A CN201710086218A CN106840369A CN 106840369 A CN106840369 A CN 106840369A CN 201710086218 A CN201710086218 A CN 201710086218A CN 106840369 A CN106840369 A CN 106840369A
- Authority
- CN
- China
- Prior art keywords
- pin
- electric capacity
- resistance
- operational amplifier
- inductance
- 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.)
- Pending
Links
- 238000001514 detection method Methods 0.000 title claims abstract description 19
- 238000000605 extraction Methods 0.000 title claims abstract description 12
- 239000003814 drug Substances 0.000 title claims abstract description 11
- 230000003321 amplification Effects 0.000 claims abstract description 8
- 238000001914 filtration Methods 0.000 claims abstract description 8
- 238000003199 nucleic acid amplification method Methods 0.000 claims abstract description 8
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 claims description 18
- 229910052697 platinum Inorganic materials 0.000 claims description 9
- 239000013078 crystal Substances 0.000 claims description 8
- 230000005611 electricity Effects 0.000 claims description 8
- 238000004088 simulation Methods 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 2
- 238000005259 measurement Methods 0.000 description 8
- 230000000694 effects Effects 0.000 description 4
- 239000000919 ceramic Substances 0.000 description 2
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 1
- 101000639792 Homo sapiens U2 small nuclear ribonucleoprotein A' Proteins 0.000 description 1
- 102100034465 U2 small nuclear ribonucleoprotein A' Human genes 0.000 description 1
- 239000004480 active ingredient Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000002137 ultrasound extraction Methods 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
- 230000003245 working effect Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01H—MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES
- G01H11/00—Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves by detecting changes in electric or magnetic properties
- G01H11/06—Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves by detecting changes in electric or magnetic properties by electric means
Abstract
The invention discloses a kind of ultrasonic sound intensity detection circuit for being applied to traditional Chinese medicine extraction.The invention mainly comprises frequency-selecting and amplification, multiple-frequency signal detection control, four modules of full-wave rectification and filtering and temperature-compensating, the vibration of load is converted into AC signal by the present invention by piezoceramic transducer first, in the presence of controller the frequency F to be measured is selected by frequency-selecting amplification module, AC signal is become into direct current signal by full-wave rectification and filtering again, finally obtain preconditioned voltage by temperature-compensating again, treat that subsequent acquisition and treatment obtain a magnitude of voltage U, according to METHOD FOR SOUND POWER CALCULATION formula W=P*F*U2So as to the sound intensity value to be measured can be calculated.The measurable multi-band signal of the present invention, scalability is good, is measured while could support up the eight tunnel frequency range ultrasonic wave sound intensity, using the collocation compatibility of analog switch and controller is good, strong applicability.Temperature-compensation circuit design is ingenious, and with low cost, parameter designing is flexible.
Description
Technical field
The invention belongs to ultrasonic technology field, it is related to a kind of signal deteching circuit, and in particular to one kind is applied to Chinese medicine
Ultrasonic sound intensity detection circuit of the multiband of extraction with temperature-compensating.
Background technology
Ultrasonic extraction is cavitation effect, mechanical effect and the fuel factor having using ultrasonic wave, by increasing mesic molecule
Movement velocity and meson penetration power with the technology of active ingredient in extraction of substance, it is increasing in traditional Chinese medicine extraction
Use.The sound intensity (acoustical power) as a main index for weighing ultrasonic wave generating apparatus working effect, with particularly significant
Measurement meaning, due in extraction of traditional Chinese medicine sometimes for using multiple frequency range ultrasonic wave, therefore it is required that measuring circuit energy
The sound intensity of multiple frequency range ultrasonic wave is enough measured, the high temperature for adding traditional Chinese medicine extraction environment measures biography to traditional measurement sound intensity piezoelectric ceramics
Sensor is generated than large effect, and this method for allowing for the traditional measurement ultrasonic wave sound intensity is difficult to meet traditional Chinese medicine extraction high temperature ring
The sound intensity of multiband ultrasonic wave have detected in border.
Or the circuit of the traditional measurement ultrasonic wave sound intensity is often only capable of the sound intensity mixing of one-shot measurement single frequency range ultrasonic wave
The average sound intensity of frequency range ultrasonic wave, and there is no special treatment to hot environment, and piezoelectric ceramics is a kind of negative temperature coefficient
Sensor, that is to say with the rising of temperature, be presented linear less than normal for the measurement result of the identical sound intensity, so as to cause measurement to tie
It is really inaccurate, the two be exactly present invention mainly solves problem.
The content of the invention
The purpose of the present invention is aiming at the existing ultrasonic sound intensity detection circuit for being applied to traditional Chinese medicine extraction device, there is provided one
Plant the multi-band signal detection circuit with temperature-compensating.
The present invention uses following technical scheme：
It is applied to the ultrasonic sound intensity detection circuit of the multiband with temperature-compensating of traditional Chinese medicine extraction, including frequency-selecting and amplification mould
Block, multiple-frequency signal detection control module, full-wave rectification and filtration module and temperature compensation module.
Described frequency-selecting and amplification module include signal input part Vin, the first diode D1, the second diode D2, first
Inductance L1, the second inductance L2, the 3rd inductance L3, the 4th inductance L4, the 5th inductance L5, the 6th inductance L6, the first electric capacity C1, second
Electric capacity C2, the 3rd electric capacity C3, the 4th electric capacity C4, the 5th electric capacity C5, the 6th electric capacity C6, the 7th electric capacity Co1, the 8th electric capacity Co2,
Nine electric capacity Co3, the tenth electric capacity Co4, the 11st electric capacity Co5, the 12nd electric capacity Co6, first resistor R1, second resistance R2, the 3rd
Resistance R3, the 4th resistance R4, the 5th resistance R5, the 6th resistance R6, the 7th resistance R7, the 8th resistance R8, analog switch U1 and
One operational amplifier U2A；The model LF353 of the model CD4051 of analog switch U1, the first operational amplifier U2A；
The anode of signal input part Vin and the first diode D1, the negative electrode of the second diode D2, the one of the first inductance L1
End, one end connection of one end, one end of the 4th inductance L4 and the tenth electric capacity Co4 of the 7th electric capacity Co1；The moon of first diode D1
Pole connects+5V power supplys；The anode of the second diode D2 connects -5V power supplys；One end of first electric capacity C1 and the other end of the first inductance L1
Connection；The other end of the first electric capacity C1 is connected with one end of first resistor R1；One end of 3rd inductance L3 is with the second inductance L2's
One end, one end of the 8th electric capacity Co2, one end of the 9th electric capacity Co3, the other end of first resistor R1 and the 7th electric capacity Co1's is another
One end connects；One end of second electric capacity C2 is connected with the other end of the second inductance L2；The other end of the second electric capacity C2 and the second electricity
Hinder one end connection of R2；The other end of second resistance R2 is connected with the other end of the 8th electric capacity Co2 and meets GND；3rd electric capacity C3
One end be connected with the other end of the 3rd inductance L3；The other end of the 3rd electric capacity C3 is connected with one end of 3rd resistor R3；3rd
The other end of resistance R3 is connected with the other end of the 9th electric capacity Co3, No. 13 pin of analog switch U1；The one of 4th electric capacity C4
End is connected with the other end of the 4th inductance L4；The other end of the 4th electric capacity C4 is connected with one end of the 4th resistance R4；6th inductance
One end of L6 and one end, one end of the 11st electric capacity Co5, one end of the 12nd electric capacity Co6, the 4th resistance R4 of the 5th inductance L5
The other end and the tenth electric capacity Co4 the other end connection；One end of 5th electric capacity C5 is connected with the other end of the 5th inductance L5；The
The other end of five electric capacity C5 is connected with one end of the 5th resistance R5；The other end of the 5th resistance R5 is another with the 11st electric capacity Co5
One end connects and meets GND；One end of 6th electric capacity C6 is connected with the other end of the 6th inductance L6；The other end of the 6th electric capacity C6 with
One end connection of the 6th resistance R6；The other end of the other end of the 6th resistance R6 and the 12nd electric capacity Co6, the of analog switch U1
No. 14 pin connections；1st, 2,4,5,12, No. 15 pins of analog switch U1 are connected with GND；No. 6 pin of analog switch U1
It is connected as control end INH with network node INH；No. 7 pin of analog switch U1 connects -5V power supplys；The 8th of analog switch U1
Number pin is connected with GND；No. 9 pin of analog switch U1 is connected as control end C with network node C；Analog switch U1's
No. 10 pin is connected as control end B with network node B；The o.11 pin of U1 is connected as control end with network node A
A；No. 16 pin of analog switch U1 connects+5V power supplys；No. 3 pin of analog switch U1 and the first operational amplifier U2A's
No. 3 pin connection；The one of No. 2 pin and the 7th resistance R7 of one end of the 8th resistance R8 and the first operational amplifier U2A
End connection；The other end of the 7th resistance R7 is connected with GND；No. 8 pin of the first operational amplifier U2A connects+5V power supplys；First
No. 4 pin of operational amplifier U2A connects -5V power supplys；No. 1 pin of the first operational amplifier U2A and network node Vout1
The other end with the 8th resistance R8 is connected.
Described multiple-frequency signal detection control module includes ARM core controllers (STM32F103C6T6) U3, the tenth
Three electric capacity C12, the 14th electric capacity C13, the 15th electric capacity C14, the 16th electric capacity C15, the 17th electric capacity C16, the 14th resistance
R14, the 15th resistance R15, crystal oscillator Y.
One end of crystal oscillator Y is connected with one end of the 13rd electric capacity C12 and No. 5 pin of controller U3；Crystal oscillator Y's is another
End is connected with one end of the 14th electric capacity C13 and No. 6 pin of controller U3；The other end and the tenth of the 13rd electric capacity C12
The other end and the GND connection of four electric capacity C13；One end of 14th resistance R14 is connected with the controller U3 No. 44 pin；Tenth
One end of five electric capacity C14 is connected with the controller U3 No. 7 pin；The other end and the 15th electric capacity C14 of the 14th resistance R14
The other end and GND connection；One end of 16th electric capacity C15 and one end of the 17th electric capacity C16, the 24th of controller U3 the, 36,
No. 48 pins and+3.3V are connected；The other end of the 16th electric capacity C15 is connected with the other end and GND of the 17th electric capacity C16；Control
8th, 23,35, No. 47 pins of device U3 processed are connected with GND；One end of 15th resistance R15 is connected with the U3 No. 20 pin；
The other end of the 15th resistance R15 is connected with GND；The o.11 pin of controller U3 is connected with network node INH；Controller U3
No. 12 pin be connected with network node A；No. 13 pin of controller U3 is connected with network node B；The of controller U3
No. 14 pins are connected with network node C；1 pin of controller U3,3 pin, 4 pin, 10 pin, 15 pin, 16 pin, 17 pin, 18 pin, 19 pin,
21 pin, 22 pin, 23 pin, 24 pin, 25 pin, 26 pin, 27 pin, 28 pin, 29 pin, 30 pin, 31 pin, 32 pin, 33 pin, 34 pin, 37 pin, 38
Pin, 39 pin, 40 pin, 41 pin, 42 pin, 43 pin, 45 pin do not connect vacantly all.
Described full-wave rectification and filtration module include the 9th resistance R9, the tenth resistance R10, the 11st resistance R11, the tenth
Two resistance R12, the 13rd resistance R13, the 3rd diode D3, the 4th diode D4, the 18th electric capacity C9, the 19th electric capacity C10,
20th electric capacity C11, controllable impedance Lw, the second operational amplifier U4A, the 3rd operational amplifier U4B.
Network node Vout1 is connected with one end of the 9th resistance R9 and one end of the tenth resistance R10；11st resistance R11
No. 2 pin of the other end, the negative electrode of the 3rd diode D3 and the second operational amplifier U4A of one end and the 9th resistance R9 connect
Connect；The other end of the 11st resistance R11 is connected with one end of the 12nd resistance R12 and the anode of the 4th diode D4；Three or two
The anode of pole pipe D3 is connected with the negative electrode of the 4th diode D4 and No. 1 pin of the second operational amplifier U4A；18th electric capacity
One end of C9 is connected with GND；The other end of the 18th electric capacity C9 connects with No. 8 pin of+5V and the second operational amplifier U4A
Connect；No. 4 pin of the second operational amplifier U4A is connected with -5V；No. 3 pin of the second operational amplifier U4A connects with GND
Connect；Put with the other end of the tenth resistance R10, the other end of the 12nd resistance R12 and the 3rd computing one end of 13rd resistance R13
No. 6 pin connection of big device U4B；The other end of the 13rd resistance R13 and one end, the network node of the 20th electric capacity C11
No. 7 pin connection of Vout2 and the 3rd operational amplifier U4B；One end of 19th electric capacity C10 is connected with GND；19th electricity
The other end for holding C10 is connected with No. 8 pin of+5V and the 3rd operational amplifier U4B；No. 4 of 3rd operational amplifier U4B
Pin is connected with -5V；No. 5 pin of the second operational amplifier U4B is connected with GND；The other end of the 20th electric capacity C11 with can
Become one end connection of inductance Lw；The other end of variable inductance Lw is connected with GND.
Described temperature compensation module includes the 16th resistance R16, the 17th resistance R17, the 18th resistance R18, adjustable
Resistance Rw, platinum resistance thermometer sensor, Rt, four-operational amplifier U5A.
One end of 16th resistance R16 is connected with network node Vout2；The other end and the 17th of the 16th resistance R16
One end of resistance R17 and the four-operational amplifier U5A No. 3 pin connection；One end of adjustable resistance Rw and the 18th resistance
One end connection of R18；The other end of adjustable resistance Rw and one end of platinum resistance thermometer sensor, Rt and No. 2 of four-operational amplifier U5A
Pin is connected；The other end of platinum resistance thermometer sensor, Rt and the four-operational amplifier U5A No. 1 pin and signal output part Vout connect
Connect；The other end of the 17th resistance R17 is connected with GND；The other end of the 18th resistance R18 is connected with GND；4th operation amplifier
No. 4 pin of device U5A is connected with GND；No. 8 pin of four-operational amplifier U5A is connected with+5V.
The invention mainly comprises frequency-selecting and amplification, multiple-frequency signal detection control, full-wave rectification and filtering and temperature-compensating four
Individual module.The important technical characterstic of the present invention is：The scalability of multi-band signal detection is good, could support up eight tunnel frequency ranges and surpasses
Measured while the sound wave sound intensity, using the collocation compatibility of analog switch and controller is good, strong applicability.Temperature-compensation circuit sets
Meter is ingenious, and with low cost, parameter designing is flexible.
Beneficial effects of the present invention：The present invention adds the design of controller to realize multiband ultrasonic acoustic by analog switch
Strong detection, the temperature drift of piezoceramic transducer is compensate for by the ptc characteristics of platinum resistance thermometer sensor, it is ensured that measurement knot
The accuracy of fruit.
Brief description of the drawings
Fig. 1 is frequency-selecting and amplifying circuit；
Fig. 2 is multiple-frequency signal detection control circuit；
Fig. 3 is full-wave rectification and filter circuit；
Fig. 4 is temperature-compensation circuit.
Specific embodiment
The present invention is further illustrated below in conjunction with the accompanying drawings.
Frequency-selecting as described in Figure 1 and amplifying circuit, AC signal is converted into by piezoceramic transducer by vibration is loaded, and is passed through
First diode D1, the second diode D2 constitute limiter diode network, within input voltage maintained into ± 5V.Amplitude limit network
Frequency-selecting part is followed by, frequency-selective network point two-way, can measure two kinds of sound intensitys of frequency range ultrasonic wave in figure.Each multiple strings of route are simultaneously
Connection resonant network composition, with wherein all the way for：First inductance L1, the first electric capacity C1, first resistor R1, the 7th electric capacity Co1 structures
Into a series resonant network, the value according to C1, L1 can determine a centre frequency.Second inductance L2, the second electric capacity C2,
Two resistance R2, the 8th electric capacity Co2 constitute a series resonant network, and a centre frequency can be determined according to L2, C2, Co2 value.
L3, C3, R3, Co3 similarly constitute a series resonant network, and a centre frequency can also be determined by the value of L3, C3.Make three
The centre frequency of network is consistent, and the voltage waveform of the more satisfactory target frequency bands of effect is can be obtained by by three-level frequency-selecting.
Analog switch CD4051 can select to measure which the sound intensity, and it is artificial optional, the mould under controller U3 controls
Intend the operational amplifier UA2 after switch to be amplified signal and play a part of to reach impedance matching with sensor side.
Multiple-frequency signal detection control circuit as shown in Figure 2, major function is to simulate in connection frequency-selecting and amplification module to open
Four control ends INH, A, B, the C of (CD4051) are closed, the 13rd electric capacity C12, the 14th electric capacity C13, crystal oscillator Y constitute controller
Crystal oscillating circuit.14th resistance R14 and the 15th electric capacity C14, the 15th resistance R15 constitute controller and reset and start-up circuit,
Control analog switch to select to detect frequency range accordingly by controller U3, multiple-frequency signal detection function may finally be realized.
Full-wave rectification as shown in Figure 3 and filter circuit, the 9th resistance R9, the tenth resistance R10, the 11st resistance R11,
12 resistance R12, the 13rd resistance R13, the 3rd diode D3, the 4th diode D4, the 18th electric capacity C9, the 19th electric capacity
C10, the second operational amplifier U4A, the 3rd operational amplifier U4B constitute accurate full-wave rectifying circuit, the friendship after frequency-selecting is amplified
Stream sine wave signal becomes direct current signal.Again by the 20th electric capacity C11, controllable impedance Lw constitute LC filter link to direct current into
The alternating component of CF that may contain in point is filtered again, controllable impedance can adjust filter the exchange of which kind of frequency into
Point.
Temperature-compensation circuit as shown in Figure 4, the 16th resistance R16, the 17th resistance R17, the 18th resistance R18, can
Adjust resistance Rw, platinum resistance thermometer sensor, Rt, four-operational amplifier U5A to constitute temperature-compensation circuit, through frequency-selecting described above, put
Greatly, the DC voltage Vout2 that obtains is less than normal due to sensor after full-wave rectification and filtering, and is the negative coefficient of temperature,
And platinum resistance thermometer sensor, is that positive temperature coefficient and the linearity are good, just can be used to carry out temperature-compensating.The formula of compensation is as follows：
Wherein proportionality coefficient
Subsequent acquisition and the i.e. available magnitude of voltage U for the treatment of are carried out to Vout, according to institute selected frequency F, the pass of sound intensity value W
It is that formula can obtain W=P*F*U2, wherein P is proportionality coefficient, is demarcated according to actual conditions.
Claims (1)
1. a kind of ultrasonic sound intensity detection circuit for being applied to traditional Chinese medicine extraction, it is characterised in that：Including frequency-selecting and amplification module, many
Frequency signal detection control module, full-wave rectification and filtration module and temperature compensation module；
Described frequency-selecting and amplification module include signal input part Vin, the first diode D1, the second diode D2, the first inductance
L1, the second inductance L2, the 3rd inductance L3, the 4th inductance L4, the 5th inductance L5, the 6th inductance L6, the first electric capacity C1, the second electric capacity
C2, the 3rd electric capacity C3, the 4th electric capacity C4, the 5th electric capacity C5, the 6th electric capacity C6, the 7th electric capacity Co1, the 8th electric capacity Co2, the 9th electricity
Hold Co3, the tenth electric capacity Co4, the 11st electric capacity Co5, the 12nd electric capacity Co6, first resistor R1, second resistance R2,3rd resistor
R3, the 4th resistance R4, the 5th resistance R5, the 6th resistance R6, the 7th resistance R7, the 8th resistance R8, the fortune of analog switch U1 and first
Calculate amplifier U2A；The model LF353 of the model CD4051 of analog switch U1, the first operational amplifier U2A；
The anode of signal input part Vin and the first diode D1, the negative electrode of the second diode D2, one end of the first inductance L1,
One end connection of one end, one end of the 4th inductance L4 and the tenth electric capacity Co4 of seven electric capacity Co1；The negative electrode of the first diode D1 connects+
5V power supplys；The anode of the second diode D2 connects -5V power supplys；One end of first electric capacity C1 is connected with the other end of the first inductance L1；
The other end of the first electric capacity C1 is connected with one end of first resistor R1；One end of one end of 3rd inductance L3 and the second inductance L2,
One end of 8th electric capacity Co2, the other end of one end, the other end of first resistor R1 and the 7th electric capacity Co1 of the 9th electric capacity Co3 connect
Connect；One end of second electric capacity C2 is connected with the other end of the second inductance L2；The other end of the second electric capacity C2 is with second resistance R2's
One end connects；The other end of second resistance R2 is connected with the other end of the 8th electric capacity Co2 and meets GND；One end of 3rd electric capacity C3
The other end with the 3rd inductance L3 is connected；The other end of the 3rd electric capacity C3 is connected with one end of 3rd resistor R3；3rd resistor R3
The other end be connected with the other end of the 9th electric capacity Co3, No. 13 pin of analog switch U1；One end of 4th electric capacity C4 and the
The other end connection of four inductance L4；The other end of the 4th electric capacity C4 is connected with one end of the 4th resistance R4；The one of 6th inductance L6
Hold with one end of the 5th inductance L5, one end of the 11st electric capacity Co5, one end of the 12nd electric capacity Co6, the 4th resistance R4 it is another
The other end of end and the tenth electric capacity Co4 is connected；One end of 5th electric capacity C5 is connected with the other end of the 5th inductance L5；5th electric capacity
The other end of C5 is connected with one end of the 5th resistance R5；The other end of the 5th resistance R5 and the other end of the 11st electric capacity Co5 connect
Meet and connect GND；One end of 6th electric capacity C6 is connected with the other end of the 6th inductance L6；The other end of the 6th electric capacity C6 and the 6th electricity
Hinder one end connection of R6；The other end of the 6th resistance R6 and the other end of the 12nd electric capacity Co6, No. 14 of analog switch U1 draw
Pin is connected；1st, 2,4,5,12, No. 15 pins of analog switch U1 are connected with GND；No. 6 pin and the network of analog switch U1
Node INH is connected as control end INH；No. 7 pin of analog switch U1 connects -5V power supplys；No. 8 pin of analog switch U1
It is connected with GND；No. 9 pin of analog switch U1 is connected as control end C with network node C；No. 10 of analog switch U1
Pin is connected as control end B with network node B；The o.11 pin of U1 is connected as control end A with network node A；Simulation
No. 16 pin for switching U1 connects+5V power supplys；No. 3 pin of analog switch U1 draws with No. 3 of the first operational amplifier U2A
Pin is connected；One end of 8th resistance R8 is connected with No. 2 pin of the first operational amplifier U2A and one end of the 7th resistance R7；
The other end of the 7th resistance R7 is connected with GND；No. 8 pin of the first operational amplifier U2A connects+5V power supplys；First computing is put
No. 4 pin of big device U2A connects -5V power supplys；No. 1 pin of the first operational amplifier U2A and network node Vout1 and the 8th
The other end connection of resistance R8；
Described multiple-frequency signal detection control module includes ARM core controllers (STM32F103C6T6) U3, the 13rd electricity
Hold C12, the 14th electric capacity C13, the 15th electric capacity C14, the 16th electric capacity C15, the 17th electric capacity C16, the 14th resistance R14,
15th resistance R15, crystal oscillator Y；
One end of crystal oscillator Y is connected with one end of the 13rd electric capacity C12 and No. 5 pin of controller U3；The other end of crystal oscillator Y with
One end of 14th electric capacity C13 and the controller U3 No. 6 pin connection；The other end of the 13rd electric capacity C12 and the 14th electricity
Hold the other end and the GND connection of C13；One end of 14th resistance R14 is connected with the controller U3 No. 44 pin；15th electricity
The one end for holding C14 is connected with No. 7 pin of controller U3；The other end of the 14th resistance R14 is another with the 15th electric capacity C14
One end and GND are connected；One end of 16th electric capacity C15 and one end of the 17th electric capacity C16, the 24th, 36, No. 48 of controller U3
Pin and+3.3V are connected；The other end of the 16th electric capacity C15 is connected with the other end and GND of the 17th electric capacity C16；Controller
8th, 23,35, No. 47 pins of U3 are connected with GND；One end of 15th resistance R15 is connected with the U3 No. 20 pin；Tenth
The other end of five resistance R15 is connected with GND；The o.11 pin of controller U3 is connected with network node INH；The of controller U3
No. 12 pins are connected with network node A；No. 13 pin of controller U3 is connected with network node B；No. 14 of controller U3
Pin is connected with network node C；1 pin of controller U3,3 pin, 4 pin, 10 pin, 15 pin, 16 pin, 17 pin, 18 pin, 19 pin, 21 pin,
22 pin, 23 pin, 24 pin, 25 pin, 26 pin, 27 pin, 28 pin, 29 pin, 30 pin, 31 pin, 32 pin, 33 pin, 34 pin, 37 pin, 38 pin, 39
Pin, 40 pin, 41 pin, 42 pin, 43 pin, 45 pin do not connect vacantly all；
Described full-wave rectification and filtration module include the 9th resistance R9, the tenth resistance R10, the 11st resistance R11, the 12nd electricity
Resistance R12, the 13rd resistance R13, the 3rd diode D3, the 4th diode D4, the 18th electric capacity C9, the 19th electric capacity C10, second
Ten electric capacity C11, controllable impedance Lw, the second operational amplifier U4A, the 3rd operational amplifier U4B；
Network node Vout1 is connected with one end of the 9th resistance R9 and one end of the tenth resistance R10；The one of 11st resistance R11
End is connected with No. 2 pin of the other end, the negative electrode of the 3rd diode D3 and the second operational amplifier U4A of the 9th resistance R9；
The other end of the 11st resistance R11 is connected with one end of the 12nd resistance R12 and the anode of the 4th diode D4；3rd diode
The anode of D3 is connected with the negative electrode of the 4th diode D4 and No. 1 pin of the second operational amplifier U4A；18th electric capacity C9's
One end is connected with GND；The other end of the 18th electric capacity C9 is connected with No. 8 pin of+5V and the second operational amplifier U4A；The
No. 4 pin of two operational amplifier U4A is connected with -5V；No. 3 pin of the second operational amplifier U4A is connected with GND；The
One end of 13 resistance R13 and the other end of the tenth resistance R10, the other end and the 3rd operational amplifier of the 12nd resistance R12
No. 6 pin connection of U4B；The other end of the 13rd resistance R13 and one end of the 20th electric capacity C11, network node Vout2 and
No. 7 pin connection of the 3rd operational amplifier U4B；One end of 19th electric capacity C10 is connected with GND；19th electric capacity C10's
The other end is connected with No. 8 pin of+5V and the 3rd operational amplifier U4B；No. 4 pin of the 3rd operational amplifier U4B with-
5V is connected；No. 5 pin of the second operational amplifier U4B is connected with GND；The other end and variable inductance of the 20th electric capacity C11
One end connection of Lw；The other end of variable inductance Lw is connected with GND；
Described temperature compensation module includes the 16th resistance R16, the 17th resistance R17, the 18th resistance R18, adjustable resistance
Rw, platinum resistance thermometer sensor, Rt, four-operational amplifier U5A；
One end of 16th resistance R16 is connected with network node Vout2；The other end and the 17th resistance of the 16th resistance R16
One end of R17 and the four-operational amplifier U5A No. 3 pin connection；One end of adjustable resistance Rw is with the 18th resistance R18's
One end connects；The other end of adjustable resistance Rw connects with No. 2 pin of one end of platinum resistance thermometer sensor, Rt and four-operational amplifier U5A
Connect；The other end of platinum resistance thermometer sensor, Rt is connected with the four-operational amplifier U5A No. 1 pin and signal output part Vout；Tenth
The other end of seven resistance R17 is connected with GND；The other end of the 18th resistance R18 is connected with GND；Four-operational amplifier U5A's
No. 4 pin is connected with GND；No. 8 pin of four-operational amplifier U5A is connected with+5V.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710086218.7A CN106840369A (en) | 2017-02-17 | 2017-02-17 | A kind of ultrasonic sound intensity detection circuit for being applied to traditional Chinese medicine extraction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710086218.7A CN106840369A (en) | 2017-02-17 | 2017-02-17 | A kind of ultrasonic sound intensity detection circuit for being applied to traditional Chinese medicine extraction |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106840369A true CN106840369A (en) | 2017-06-13 |
Family
ID=59128468
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710086218.7A Pending CN106840369A (en) | 2017-02-17 | 2017-02-17 | A kind of ultrasonic sound intensity detection circuit for being applied to traditional Chinese medicine extraction |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106840369A (en) |
Citations (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2047865U (en) * | 1989-01-19 | 1989-11-15 | 项大川 | Infra-red remote-control mainswitch |
| CN2225051Y (en) * | 1994-09-24 | 1996-04-17 | 李兴举 | intellectual continuous monitor for silicic acid radical |
| CN101093204A (en) * | 2007-07-19 | 2007-12-26 | 清华大学 | Sensor for self-testing self-oscillation of resonant-type tiny cantilever beam |
| CN201421363Y (en) * | 2009-05-14 | 2010-03-10 | 合肥金星机电科技发展有限公司 | Novel sound milling device adopting frequency selection mode |
| CN102253503A (en) * | 2011-04-12 | 2011-11-23 | 浙江大学 | Temperature compensation method for half-wave voltage of integrated electro-optical phase modulator |
| CN102764621A (en) * | 2011-05-05 | 2012-11-07 | 镇江五棵松生物科技有限公司 | Sequentially working multifrequency contact ultrasound-assisted extraction and ultrasound-assisted reaction equipment |
| CN102901689A (en) * | 2012-10-22 | 2013-01-30 | 中国计量学院 | Seaport water density measuring instrument |
| CN102957423A (en) * | 2011-08-26 | 2013-03-06 | 华润矽威科技（上海）有限公司 | Resonant frequency tracking circuit of piezoelectric ceramic transformer |
| CN103017928A (en) * | 2012-12-04 | 2013-04-03 | 杭州成功超声电源技术有限公司 | Ultrasonic power supply temperature detection circuit |
| CN103067079A (en) * | 2013-01-06 | 2013-04-24 | 富通集团有限公司 | Optical fiber deformation signal processing circuit |
| CN103455057A (en) * | 2013-09-13 | 2013-12-18 | 天津市畅和科技有限公司 | Wireless temperature control system |
| CN103528669A (en) * | 2013-09-29 | 2014-01-22 | 杭州电子科技大学 | Ultrasonic sound intensity detection circuit |
| CN103675035A (en) * | 2013-12-17 | 2014-03-26 | 杭州电子科技大学 | Humidity detection circuit of dyeing and finishing drying room |
| CN104122301A (en) * | 2014-08-05 | 2014-10-29 | 江南大学 | Detergent concentration detection device for washing machine and detection method thereof |
| CN204168256U (en) * | 2014-10-28 | 2015-02-18 | 姜跃炜 | For the signal amplification circuit of flow quantity detecting system |
| CN104880286A (en) * | 2015-06-26 | 2015-09-02 | 成都安可信电子股份有限公司 | Ultrasonic gas leakage detector |
| CN104990621A (en) * | 2015-06-15 | 2015-10-21 | 合肥工业大学 | Differential ultrasonic low frequency vibration measuring device and method |
-
2017
- 2017-02-17 CN CN201710086218.7A patent/CN106840369A/en active Pending
Patent Citations (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2047865U (en) * | 1989-01-19 | 1989-11-15 | 项大川 | Infra-red remote-control mainswitch |
| CN2225051Y (en) * | 1994-09-24 | 1996-04-17 | 李兴举 | intellectual continuous monitor for silicic acid radical |
| CN101093204A (en) * | 2007-07-19 | 2007-12-26 | 清华大学 | Sensor for self-testing self-oscillation of resonant-type tiny cantilever beam |
| CN201421363Y (en) * | 2009-05-14 | 2010-03-10 | 合肥金星机电科技发展有限公司 | Novel sound milling device adopting frequency selection mode |
| CN102253503A (en) * | 2011-04-12 | 2011-11-23 | 浙江大学 | Temperature compensation method for half-wave voltage of integrated electro-optical phase modulator |
| CN102764621A (en) * | 2011-05-05 | 2012-11-07 | 镇江五棵松生物科技有限公司 | Sequentially working multifrequency contact ultrasound-assisted extraction and ultrasound-assisted reaction equipment |
| CN102957423A (en) * | 2011-08-26 | 2013-03-06 | 华润矽威科技（上海）有限公司 | Resonant frequency tracking circuit of piezoelectric ceramic transformer |
| CN102901689A (en) * | 2012-10-22 | 2013-01-30 | 中国计量学院 | Seaport water density measuring instrument |
| CN103017928A (en) * | 2012-12-04 | 2013-04-03 | 杭州成功超声电源技术有限公司 | Ultrasonic power supply temperature detection circuit |
| CN103067079A (en) * | 2013-01-06 | 2013-04-24 | 富通集团有限公司 | Optical fiber deformation signal processing circuit |
| CN103455057A (en) * | 2013-09-13 | 2013-12-18 | 天津市畅和科技有限公司 | Wireless temperature control system |
| CN103528669A (en) * | 2013-09-29 | 2014-01-22 | 杭州电子科技大学 | Ultrasonic sound intensity detection circuit |
| CN103675035A (en) * | 2013-12-17 | 2014-03-26 | 杭州电子科技大学 | Humidity detection circuit of dyeing and finishing drying room |
| CN104122301A (en) * | 2014-08-05 | 2014-10-29 | 江南大学 | Detergent concentration detection device for washing machine and detection method thereof |
| CN204168256U (en) * | 2014-10-28 | 2015-02-18 | 姜跃炜 | For the signal amplification circuit of flow quantity detecting system |
| CN104990621A (en) * | 2015-06-15 | 2015-10-21 | 合肥工业大学 | Differential ultrasonic low frequency vibration measuring device and method |
| CN104880286A (en) * | 2015-06-26 | 2015-09-02 | 成都安可信电子股份有限公司 | Ultrasonic gas leakage detector |
Non-Patent Citations (1)
| Title |
|---|
| 贾惠芹等: "一种改进型超声波流量计及其电磁兼容性设计", no. 06, pages 116 - 118 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103398807B (en) | A kind of novel three-dimensional stress measurement sensor | |
| CN204945100U (en) | A kind of ultrasonic transmission device of frequency-adjustable | |
| CN103528669B (en) | Ultrasonic sound intensity detection circuit | |
| CN203852348U (en) | Detection circuit of skin surface conditions | |
| CN106771337A (en) | Wind velocity signal acquisition method and device based on piezoelectric patches | |
| CN102495275B (en) | High-precision current detection circuit based on CPU (Central Processing Unit) | |
| CN102169008A (en) | Device and method for measuring crop biomass | |
| CN106840369A (en) | A kind of ultrasonic sound intensity detection circuit for being applied to traditional Chinese medicine extraction | |
| CN105932906B (en) | A kind of piezoelectric energy collector and preparation method thereof | |
| CN2502277Y (en) | Intelligent digital multimeter | |
| Bai et al. | Investigation of using free-standing thick-film piezoelectric energy harvesters to develop wideband devices | |
| CN105811803A (en) | Piezoelectric material based fluid vibration energy collection apparatus | |
| CN103389412A (en) | Measuring method and measuring device for electrical parameters of power grid comprising small power generator | |
| CN203519153U (en) | Supersonic wave sound intensity detection circuit | |
| Ibrahim et al. | Power enhancement for piezoelectric energy harvester | |
| CN105865555B (en) | A kind of high temperature resistance analog drive circuit of Coriolis mass flowmeter | |
| CN202534234U (en) | Resonance method inductance measurement experimental instrument | |
| CN207573264U (en) | A kind of electricity energy harvester of the double localization characteristics of application phonon crystal containing defect beam | |
| CN203591258U (en) | Human body electrical impedance measuring instrument | |
| Wang et al. | Analyses of impedance matching for piezoelectric energy harvester with a resistive circuit | |
| CN204698533U (en) | Outdoor exercise ambient parameter and pulse frequency detector | |
| CN204389095U (en) | Miniaturized pressure sensor parameters amending unit | |
| CN205374676U (en) | Piezoelectricity interface circuit performance automatic test system | |
| Park et al. | Piezoelectret Based Energy Harvesting From Human Body Motions With Respect to Implementation of Self-Powering Wearable Devices | |
| Guan et al. | Design and testing of wind energy harvester based on PVDF |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |