CN110261492A - A kind of method and device of Serial No. driving ultrasonic sensor - Google Patents
A kind of method and device of Serial No. driving ultrasonic sensor Download PDFInfo
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- CN110261492A CN110261492A CN201910398391.XA CN201910398391A CN110261492A CN 110261492 A CN110261492 A CN 110261492A CN 201910398391 A CN201910398391 A CN 201910398391A CN 110261492 A CN110261492 A CN 110261492A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
- G01N29/34—Generating the ultrasonic, sonic or infrasonic waves, e.g. electronic circuits specially adapted therefor
- G01N29/341—Generating the ultrasonic, sonic or infrasonic waves, e.g. electronic circuits specially adapted therefor with time characteristics
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
- G01N29/34—Generating the ultrasonic, sonic or infrasonic waves, e.g. electronic circuits specially adapted therefor
- G01N29/348—Generating the ultrasonic, sonic or infrasonic waves, e.g. electronic circuits specially adapted therefor with frequency characteristics, e.g. single frequency signals, chirp signals
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2291/00—Indexing codes associated with group G01N29/00
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- G01N2291/101—Number of transducers one transducer
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Abstract
The invention discloses a kind of method and device of Serial No. driving ultrasonic sensor, this method comprises: S1, taking digit chips such as FPGA or ARM as the control module generation logic level that is constituted of core as Serial No. a (k)；S2, high-energy incentive signal x is generated so that the ultrasonic action module that chip is formed as core is motivated by ultrasoundn(t)；S3, high-energy incentive signal excitation ultrasonic sensor generate the controllable ultrasonic signal y of pumping signaln(t).This method realization device includes control module, ultrasonic action module and ultrasonic sensor module.Ultrasonic excitation signal Parameter adjustable in the present invention, especially suitable for needing different wave to motivate the occasion of single or multiple ultrasonic sensors.
Description
Technical field
The invention belongs to ultrasonic detecting technology fields, are related to the method and dress of a kind of Serial No. driving ultrasonic sensor
It sets.Ultrasonic excitation signal Parameter adjustable in the invention, especially suitable for needing the occasion of different wave excitation ultrasonic sensor.
Background technique
Ultrasound detection is a kind of important nondestructiving detecting means, development at home and abroad with it is very widely used.In recent years
Integrated circuit based on Electronics Science and Technology is fast-developing, on this basis, ultrasonic testing system just towards digitlization,
Integrated, functionalization and portability direction are developed.Current ultrasonic signal exiting form can be divided into pulse excitation form and coding
Exiting form, pulse excitation producing method is simple, can easily be accommodated, but the amplitude of driving pulse just determines the peak value sound function of beginning wave
Rate, and emitted energy unconfined cannot increase, thus often will cause peak acoustic power already close to ultrasonic transducer or by
Survey the safety margins of object and average acoustical power is still lower.Average acoustical power is determined by pulse width, improves average acoustical power
It needs to increase pulse width, this will lead to the reduction of distance resolution.Therefore traditional single pulse excitation improve acoustical power with
There is certain contradictions in raising resolution ratio.Code-excited form substitutes single pulse excitation using one group of continuous coded sequence
Wide band ultrasonic transducer, excitation duration are greater than the pulse width of pulse, improve average acoustical power, carry out pulse compression
The available decoding pulse approached with single pulse width but amplitude is bigger afterwards, to improve signal-to-noise ratio.Meanwhile for sensor
The ultrasonic detection equipment of array format can also carry out source identity to each ultrasonic transducer using code-excited, be conducive to resolve
Various sound field parameters (Song Shoupeng, Liu Mingyu, based on binary-coded defect of pipeline supersonic detection method research [J] piezoelectricity with
Acousto-optic, 2018 (6)).
Ultrasonic sensor energisation mode currently on the market, it is most of that specific frequency is motivated by analog circuit or main control chip
The detection ultrasonic wave of rate and certain power, exist have a single function, adjustable extent is small, using it is inflexible the deficiencies of, be not easy to
Multifunction supersonic wave excitation is carried out in complicated occasion.
Summary of the invention
For deficiency existing for above-mentioned ultrasonic action technology, the purpose of the present invention is to provide a kind of driving of Serial No. is super
The method and device of sonic transducer generates single channel or multichannel ultrasonic excitation signal, for exciting single sensor or sensor array
Column, and a variety of pulses or coding form excitation can be respectively adopted according to excitation requirement in every road ultrasonic sensor.The present invention is special
It is applicable to the occasion of different wave excitation ultrasonic sensor, and ultrasonic excitation signal Parameter adjustable.It realizes of the invention
Technical solution is as follows:
S1, logic level is generated as Serial No. by the control module that core is constituted of digit chips such as FPGA or ARM
It controls signal a (k)；
S2, high-energy incentive signal x is generated so that the ultrasonic action module that chip is formed as core is motivated by ultrasoundn(t)；
S3, high-energy incentive signal excitation ultrasonic sensor generate the controllable ultrasonic signal y of pumping signaln(t)。
In the present invention, the step S1 specifically:
The logic level that control module generates high level+3.3V, low level is 0V is set to be used as number by software programming
Sequence control signal α (k), single channel Serial No. α (k) expression formula of control module output are as follows:
Wherein, K is the total length of sequence, and the step-length of K is determined by the clock signal of control module, bkTo be given by control module
0 or 1 logical value out, A are logic level amplitude.The logical order b of Serial No.kIt can be changed by programming.
The step S2 specifically:
The Serial No. number of control module output is with ultrasonic action core number by the ultrasonic sensor number of required excitation
Mesh determines that Serial No. length is determined by the ultrasonic signal type of required excitation；
The power-supplying forms that module is motivated by ultrasound are bipolarity DC-voltage supply, and power supply uses AC-DC mode, can be by 220V
Alternating current is converted to direct current adjustable electric potential source, and DC voltage source voltage value is the amplitude of high-energy incentive signal.
The step S2 further include:
Ultrasonic action chip is controlled by control module by logic level, and every 2 control pins control 1 tunnel ultrasound and swash
Encourage signal, 1 road high-energy incentive signal x1(t) by its corresponding 2 railway digital sequence α1(k) and α2(k) it is combined control, when
Serial No. by 0 jump to 1 when be considered as the rising edge of high-energy incentive signal, Serial No. by 1 jump to 0 when be considered as high-energy incentive
The output of high-energy incentive signal is then kept when Serial No. is 1 and does not jump, digital sequence is consequently formed by the failing edge of signal
The control planning x of column and high-energy incentive signal1(t)=α1(k)EG(t-k1τ1)-α2(k)EG(t-k2τ2), wherein G (t-k τ) is
Length be τ window function andTimeconstantτ is the retention time of Serial No. high level；E is electricity
Source module is supplied to the DC voltage amplitude of ultrasonic action module；It is independent mutually between each road high-energy incentive signal, it can the same time-division
Different high-energy incentive signal x is not generated1(t) to xn(t), it may be assumed that
Wherein, K is the total length of pumping signal, G (t-k2n-1τ2n-1) be length be τ2n-1Window function, G (t-k2nτ2n)
Be length be τ2nWindow function, and WithIt is 0 or 1 logical value, by control module
It provides；Be fundamental frequency be ω2n-1Square-wave signal Fourier's trigonometric function expansion,Be fundamental frequency be ω2nSquare-wave signal Fourier's trigonometric function expansion, ω2n-1With
ω2nI.e. by α2n-1(k)G(t-k2n-1τ2n-1) and α2n(k)EG(t-k2nτ2n) controlled；E is supplied to ultrasound for power module and swashs
Encourage the DC voltage amplitude of module；n∈Z+, it is required stimulus sensor number.
The step S2 further include:
The control of ultrasonic excitation signal form is realized by being programmed to control module, such as generates single positive arteries and veins
Punching, single positive and negative bidirectional pulse, multiple pulse combineds, phase modulation coding form, FM encoding form etc.；Wherein, in pumping signal
The parameters such as frequency of heart, phase, pulse width, pulse number, symbol frequency, grouping of bits, coding duration, repetition rate are equal
The logical sequence of control pin can be changed by control moduleWithLogical level time duration G (t-k2n-1τ2n-1) with
G(t-k2nτ2n) adjust.
In the present invention, the step S3 specifically:
High-energy incentive signal xn(t) ultrasonic sensor h is motivatedn(t) ultrasonic signal y is generatedn(t)。
The device of Serial No. driving ultrasonic sensor method of the invention, including control module, ultrasonic action module with
And ultrasonic sensor module；The control module is separately connected power supply and ultrasonic action module, ultrasonic action module connection ultrasound
Sensor module；Control module is for generating logic level as Serial No.；Ultrasonic action module is for generating high-energy incentive
Signal, high-energy incentive signal motivate ultrasonic sensor to generate the controllable ultrasonic signal of pumping signal.
The invention has the following advantages: driving ultrasonic sensor using Serial No., it is different from existing using electricity
Hold charge and discharge, generation pumping signal is converted using D/A or generates pumping signal equal excitation mode using DDS technology.Of the invention
Advantage is to generate Serial No. a by being programmed control module1(k) to a2n(k) ultrasonic action letter is accurately controlled
Number number of channels and exiting form, it is convenient to operate, and regulates the speed fast, and the ultrasonic excitation signal type of generation is abundant, excitation effect
Fruit is good.Control module only needs 3.3V direct current supply, and the ultrasonic action received direct current supply voltage value of module is pumping signal width
Value, power supply mode is simple, and ultrasonic excitation signal amplitude can easily be accommodated.Select ultrasonic sensor hn(t) and corresponding high energy is adjusted
Pumping signal xn(t) it can produce required ultrasonic signal yn(t), using flexible is applicable to different wave excitation ultrasonic sensing
The occasion of device, and ultrasonic excitation signal parameter is controllable, and the ultrasonic signal of diversified forms can be generated according to actually detected demand.
Detailed description of the invention
Fig. 1 is the method for the present invention flow diagram
Fig. 2 is ultrasonic sensor Any Digit train excitation device general principles block diagram in the embodiment of the present invention
Fig. 3 is control module functional block diagram in the embodiment of the present invention
Fig. 4 is control module circuit diagram in the embodiment of the present invention
Fig. 5 is that module principle block diagram is motivated by ultrasound in the embodiment of the present invention
Fig. 6 is that module circuit diagram is motivated by ultrasound in the embodiment of the present invention
Fig. 7 is that the embodiment of the present invention carries out the excitation implementation result figure of binary coding 000, wherein (a) figure shows control
The Serial No. α that digit chip I/O pin exports in molding block2n-1(k)-α2n(k)；(b) figure shows ultrasonic action module
The high-energy incentive signal x of outputn(t)；(c) the actual measurement ultrasonic signal y that figure showsn(t)
Fig. 8 is that the embodiment of the present invention carries out the excitation implementation result figure of binary coding 101, wherein (a) figure shows control
The Serial No. α that digit chip I/O pin exports in molding block2n-1(k)-α2n(k)；(b) figure shows ultrasonic action module
The high-energy incentive signal x of outputn(t)；(c) the actual measurement ultrasonic signal y that figure showsn(t)；
Specific embodiment
Technical solution of the present invention is described further below in conjunction with drawings and examples.It should be noted that this hair
Bright to be applied by other equivalent implementations, embodiment provided in following embodiment and Detailed description of the invention are only
Illustrate basic fundamental conception of the invention, model, number, shape, the size of related elements etc. in embodiment by way of example
Parameter can be changed in specific implementation environment.
Fig. 2 is ultrasonic sensor Any Digit train excitation device general principles block diagram in the embodiment of the present invention.Excitation dress
It sets with FPGA minimum system composition control module, control signal is high level+3.3V, the logic level of low level 0V；With
Chip is motivated by ultrasound in HV7351 and its peripheral circuit composition ultrasonic action module, the ultrasound that can generate multichannel multiple types simultaneously swash
Encourage signal.Power supply uses AC-DC operating mode, is control module and ultrasonic action module for power supply.
Fig. 3 is control module functional block diagram in the embodiment of the present invention, and Fig. 4 is control module circuit in the embodiment of the present invention
Figure.Power supply offer+3.3V DC voltage is the power supply of FPGA minimum system, and+3.3V supply voltage is accessed by 0.1uF capacitor CX1
There is source crystal oscillator to make there is source crystal oscillator to generate clock signal, clock frequency 50MHz accesses FPGA by there are No. 3 pin outputs of source crystal oscillator
Clock Signal pin, provide clock signal for FPGA, the most short cycle of FPGA output signal is 20ns.+ 3.3V DC voltage
The power pins of FPGA are accessed simultaneously, and the grounding pin of FPGA accesses digitally simultaneously, digitally passes through 0 Ohmic resistance and power supply
Ground connection.FPGA program generates " .jic " file after exploitation software translating debugging, is downloaded FPGA program by JTAG mode
Solidified on to SPI FLASH, reads cured program in SPI FLASH by 33 to No. 36 program pins of FPGA and controlled
The operation of molding block.The exportable a height of+3.3V of remaining I/O pin of FPGA, the low logic level for 0V export Serial No.
a1(k) to a2n(k), to the control of ultrasonic action module in the form of logic level, the single channel number sequence of control module output
α (k) form of arranging are as follows:
Wherein, K is the total length of sequence, bkFor 0 or 1 logical value provided by control module, A is logic level width
Value.
Fig. 5 is that module principle block diagram is motivated by ultrasound in the embodiment of the present invention.Module is motivated by ultrasound with HV7351 ultrasound chip
For core, every HV7351 chip includes 16 control pins, and control pin receives logic level control；Every HV7351 can be same
When export the different types of high-energy incentive Serial No. in 8 tunnels respectively, i.e. every 2 control pins control 1 road high-energy incentive signal, 1
Road high-energy incentive signal x1(t) by its corresponding 2 railway digital sequence α1(k) and α2(k) it is combined control, works as Serial No.
Be considered as the rising edge of high-energy incentive signal when by 0 jump to 1, Serial No. by 1 jump to 0 when be considered as under high-energy incentive signal
Edge is dropped, then the output of high-energy incentive signal is kept when Serial No. is 1 and does not jump, Serial No. and high energy is consequently formed
The control planning x of pumping signal1(t)=α1(k)EG(t-k1τ1)-α2(k)EG(t-k2τ2), wherein G (t-k τ) is that length is τ
Window function andTimeconstantτ is the retention time of Serial No. high level；E is power module
It is supplied to the DC voltage amplitude of ultrasonic action module；It is independent mutually between each road high-energy incentive signal, it can generate respectively simultaneously
Different high-energy incentive signal x1(t) to xn(t), it may be assumed that
Wherein, K is the total length of pumping signal, G (t-k2n-1τ2n-1) be length be τ2n-1Window function, G (t-k2nτ2n)
Be length be τ2nWindow function, and WithIt is 0 or 1 logical value, by control module
It provides；Be fundamental frequency be ω2n-1Square-wave signal Fourier's trigonometric function expansion,Be fundamental frequency be ω2nSquare-wave signal Fourier's trigonometric function expansion, ω2n-1With
ω2nI.e. by α2n-1(k)G(t-k2n-1τ2n-1) and α2n(k)EG(t-k2nτ2n) controlled；E is supplied to ultrasound for power module and swashs
Encourage the DC voltage amplitude of module；n∈Z+, it is required stimulus sensor number；The number of ultrasonic chip in module is motivated by ultrasound
It is determined by the ultrasonic sensor number of required excitation.
Fig. 6 is that module circuit diagram is motivated by ultrasound in the embodiment of the present invention.IN1 to IN16 is that 16 controls of ultrasonic chip are drawn
Foot, the Serial No. a that control pin is provided by control module I/O pin1(k) to a2n(k) it is controlled.Ultrasonic chip output is drawn
Foot OUT1 to OUT8 exports high-energy incentive Serial No. x1(k) to xn(k), output pin is by 16 needle connecting terminals and ultrasonic sensing
Device connection, can motivate the ultrasonic sensor h of selectionn(t) ultrasonic wave is generated.Module is motivated by ultrasound and receives bipolarity DC voltage source
Power supply, DC voltage positive value access VPP pin, negative value access VNN pin, the acceptable direct current of chip HV7351 are motivated by ultrasound
Pressure value is up to ± 70V, and DC-voltage supply value E is ultrasonic excitation signal amplitude, is adjusted to DC-voltage supply value E
The amplitude of i.e. controllable ultrasonic excitation signal, ultrasonic excitation signal maximum output current are ± 3A.Meanwhile access capacitor CPF,
CNF, CPOS, CNEG play the role of removing ripple for chip uncoupling.In peripheral circuit, the current limliting of pin OEN and REN are enabled
Resistance plays the role of protecting chip, and power capacitor CH1 to CH4, which is played, prevents power supply impulse.If desired road ultrasound
Pumping signal is pulse excitation form, then can start by adjusting the logical sequence of control pin to adjust the excitation of pulse excitation
Time, and pass through controlWithValue come to control the road pulse excitation be unidirectional pulse, positive and negative bidirectional pulse or more
A pulse combined；By adjusting the logical level time duration G (t-k of control pin2n-1τ2n-1) and G (t-k2nτ2n) i.e. adjustable
The pulse width of the road pulse excitation.If desired the road ultrasonic excitation signal is code-excited form, then needs to combine coding shape
Formula is programmed control module, to the logical sequence of control pinWithLogical level time duration G (t-k2n-1
τ2n-1) and G (t-k2nτ2n) it is combined control, to generate a variety of phase modulation codings or FM encoding form；For example, when to logic
SequenceWithCode-excited phase controlling can be carried out by being adjusted, to logical level time duration G (t-k2n-1τ2n-1)
With G (t-k2nτ2n) it is adjusted the control that can carry out symbol frequency and code length.
In embodiments of the present invention, if the ultrasonic transducer time domain response model h (t) selected are as follows:
Wherein, β is amplitude coefficient,γ is pulse width coefficient, ω0For ultrasonic sensor centre frequency,
Φ is initial phase.Then its frequency domain response model H (ω) are as follows:
The time-domain expression x of the road high-energy incentive signaln(t) are as follows:
Its frequency domain presentation Formula Xn(ω) is
It then can be according to yn(t)=xn(t)*hn(t) and Yn(ω)=Xn(ω)·Hn(ω) obtain the time domain of ultrasonic signal with
Frequency-domain expression
It can be by the n-th road high-energy incentive signal xn(t) with road ultrasonic sensor hn(t) road ultrasonic signal y is obtainedn
(t), the ultrasonic signal excitation of diversified forms is realized.
Fig. 7 and Fig. 8 is the implementation result figure of the embodiment of the present invention, and Fig. 7 shows the implementation of binary coding excitation 000
Effect, Fig. 8 show the implementation result of binary coding 101.Wherein, (a) figure shows digit chip in control module
The Serial No. α of I/O pin output2n-1(k)-α2n(k), high-energy incentive is generated by this group of Serial No. control ultrasonic action module
Signal xn(t).(b) figure shows the high-energy incentive signal x of ultrasonic action module outputn(t), it is motivated by ultrasound in embodiment
The power supply of module receiving ± 50V DC voltage source changes the i.e. changeable ultrasonic signal amplitude of DC voltage source power supply value, (c) figure exhibition
What is shown is by high-energy incentive signal xn(t) ultrasonic sensor h is motivatedn(t) the actual measurement ultrasonic signal y obtainedn(t).Wherein, signal
The parameters such as centre frequency, phase, duration, repetition rate, grouping of bits can pass through programming and change control module output
Serial No. be adjusted.
Explanation in embodiment is only the specific displaying for feasible embodiment of the present invention, not to limit this hair
Bright protection scope.It is all to should be included in guarantor of the invention without departing from the equivalent implementations of technical spirit of the present invention or change
Within the scope of shield.
Claims (7)
1. a kind of method of Serial No. driving ultrasonic sensor, which is characterized in that the described method includes:
S1, control module generation logic level is constituted using digit chip as Serial No. a (k)；
S2, ultrasonic action module generation high-energy incentive signal x is formed so that chip is motivated by ultrasoundn(t)；
S3, high-energy incentive signal excitation ultrasonic sensor generate the controllable ultrasonic signal y of pumping signaln(t)。
2. Serial No. according to claim 1 drives ultrasonic sensor method, which is characterized in that the step S1 is specific
Are as follows:
The logic level that control module generates high level+3.3V, low level is 0V is controlled as Serial No. by programming
Signal alpha (k), single channel Serial No. α (k) expression formula of control module output are as follows:
Wherein, K is the total length of sequence, and the step-length of K is determined by the clock signal of control module, bkFor provided by control module 0
Or 1 logical value, A be logic level amplitude, the logical order b of Serial No.kIt can be changed by programming.
3. Serial No. according to claim 1 drives ultrasonic sensor method, which is characterized in that the step S2 is specific
Are as follows:
The Serial No. number of control module output determines that Serial No. length is by institute by the ultrasonic sensor number of required excitation
The ultrasonic signal type that need to be motivated determines；
The power-supplying forms that module is motivated by ultrasound are bipolarity DC-voltage supply, and power supply uses AC-DC mode, by 220V alternating current
Direct current adjustable electric potential source is converted to, DC voltage source voltage value is the amplitude of high-energy incentive signal.
4. Serial No. according to claim 3 drives ultrasonic sensor method, which is characterized in that the step S2 is also wrapped
It includes:
Ultrasonic action chip is controlled by control module by logic level, and every 2 control pins control 1 road ultrasonic action letter
Number, 1 road high-energy incentive signal x1(t) by its corresponding 2 railway digital sequence α1(k) and α2(k) it is combined control, works as number
Sequence by 0 jump to 1 when be considered as the rising edge of high-energy incentive signal, Serial No. by 1 jump to 0 when be considered as high-energy incentive signal
Failing edge, Serial No. is 1 and then keeps the output of high-energy incentive signal when not jumping, be consequently formed Serial No. with
The control planning x of high-energy incentive signal1(t)=α1(k)EG(t-k1τ1)-α2(k)EG(t-k2τ2), wherein G (t-k τ) is length
For τ window function andTimeconstantτ is the retention time of Serial No. high level；E is power supply mould
Block is supplied to the DC voltage amplitude of ultrasonic action module；It is independent mutually between each road high-energy incentive signal, it can produce respectively simultaneously
Raw different high-energy incentive signal x1(t) to xn(t), i.e.,
Wherein, α2n-1(k) and α2nIt (k) is respectively 2n-1,2n railway digital sequence；K is the total length of pumping signal, G (t-k2n-1
τ2n-1) be length be τ2n-1Window function, G (t-k2nτ2n) be length be τ2nWindow function, and WithIt is 0 or 1 logical value, is provided by control module；It is base
Frequency is ω2n-1Square-wave signal Fourier's trigonometric function expansion,It is that fundamental frequency is
ω2nSquare-wave signal Fourier's trigonometric function expansion, ω2n-1With ω2nI.e. by α2n-1(k)G(t-k2n-1τ2n-1) and α2n(k)EG
(t-k2nτ2n) controlled；E is the DC voltage amplitude that power module is supplied to ultrasonic action module；n∈Z+, it is required excitation
Number of probes.
5. Serial No. according to claim 4 drives ultrasonic sensor method, which is characterized in that the step S2 is also wrapped
It includes:
The control of ultrasonic excitation signal form is realized by being programmed to control module, wherein pumping signal centre frequency,
The parameters such as phase, pulse width, pulse number, symbol frequency, grouping of bits, coding duration, repetition rate can be by controlling
Molding block changes the logical sequence of control pinWithLogical level time duration G (t-k2n-1τ2n-1) and G (t-k2n
τ2n) adjust.
6. Serial No. according to claim 2 drives ultrasonic sensor method, which is characterized in that the step S3 is specific
Are as follows: the detailed process of programming are as follows: control module FPGA program generates " .jic " file after exploitation software translating debugging, passes through
JTAG mode, which downloads to FPGA program on SPI FLASH, to be solidified, and is read by 33 to No. 36 program pins of FPGA
Cured program carries out the operation of control module in SPIFLASH.
7. the device of Serial No. driving ultrasonic sensor method according to claim 1, which is characterized in that including control
Module, ultrasonic action module and ultrasonic sensor module；The control module is separately connected power supply and ultrasonic action module, surpasses
Acoustically-driven module connects ultrasonic sensor module；Control module is for generating logic level as Serial No.；Mould is motivated by ultrasound
Block motivates ultrasonic sensor to generate the controllable ultrasonic wave letter of pumping signal for generating high-energy incentive signal, high-energy incentive signal
Number.
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