CN105681962A - Ultrasonic beat tone generator - Google Patents
Ultrasonic beat tone generator Download PDFInfo
- Publication number
- CN105681962A CN105681962A CN201510809276.9A CN201510809276A CN105681962A CN 105681962 A CN105681962 A CN 105681962A CN 201510809276 A CN201510809276 A CN 201510809276A CN 105681962 A CN105681962 A CN 105681962A
- Authority
- CN
- China
- Prior art keywords
- beat tone
- tone generator
- power amplifier
- ultrasound wave
- frequency
- 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
- 238000002604 ultrasonography Methods 0.000 claims description 16
- 230000009514 concussion Effects 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 4
- 230000010355 oscillation Effects 0.000 abstract 1
- 230000001105 regulatory effect Effects 0.000 abstract 1
- 210000003454 tympanic membrane Anatomy 0.000 abstract 1
- 210000000959 ear middle Anatomy 0.000 description 4
- 230000006870 function Effects 0.000 description 2
- 206010038743 Restlessness Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 210000004556 brain Anatomy 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000035807 sensation Effects 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R1/00—Details of transducers, loudspeakers or microphones
- H04R1/20—Arrangements for obtaining desired frequency or directional characteristics
- H04R1/22—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired frequency characteristic only
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R1/00—Details of transducers, loudspeakers or microphones
- H04R1/20—Arrangements for obtaining desired frequency or directional characteristics
- H04R1/22—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired frequency characteristic only
- H04R1/24—Structural combinations of separate transducers or of two parts of the same transducer and responsive respectively to two or more frequency ranges
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R3/00—Circuits for transducers, loudspeakers or microphones
- H04R3/005—Circuits for transducers, loudspeakers or microphones for combining the signals of two or more microphones
Landscapes
- Health & Medical Sciences (AREA)
- Otolaryngology (AREA)
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- General Health & Medical Sciences (AREA)
- Apparatuses For Generation Of Mechanical Vibrations (AREA)
Abstract
The invention discloses an ultrasonic beat tone generator, comprising a first oscillator, a second oscillator, power amplifiers, piezoelectric tweeters, 555 integrated circuit chips and trimmer potentiometers, wherein the first oscillator and the second oscillator respectively form two circuits with the power amplifier and the piezoelectric tweeter to generate two different ultrasonic frequencies which are both more than 20000HZ and have a difference of 20HZ-12000HZ; the number of the 555 integrated circuit chips is four and the four ones are all used as unstable multifrequency oscillators, two 555 integrated circuit chips are connected with the power amplifier to generate high frequency sound, and the other two 555 integrated circuit chips generate modulating signals and are regulated by corresponding signals; and the trimmer potentiometers regulate the oscillation frequencies of the signals. According to the ultrasonic beat tone generator, the beat tone phenomenon is generated by two ultrasonic waves with different frequencies, thus a new sound without sound source and direction is generated in the eardrum of a person, and the desired effect is achieved.
Description
Technical field
The present invention relates to police field of tool, specifically a kind of ultrasound wave beat tone generator.
Background technology
Ultrasound wave beat tone generator is a kind of electronic product, and it produces ultrasound wave mainly by agitator, high power amplifier and high frequency Yang Sheng device, next to that utilize the beat tone phenomenon of sound to form a kind of new sound wave in the tympanum of people. It is mainly used for military affairs, national defence, security, be also used for public security prevent quick-fried unrest, it is prevented that cluster is made trouble.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of ultrasound wave beat tone generator, produces sound, it does not have sound source, also without direction, reaches police effect in ear tympanum.
In order to solve above-mentioned technical problem, the technical solution used in the present invention is:
Ultrasound wave beat tone generator, including agitator one, agitator two, power amplifier, piezoelectricity tweeter, 555 IC chips and trimmer potentiometer, agitator one, agitator two respectively with power amplifier, piezoelectricity tweeter forms two circuit and produces two different ultrasonic frequencies, two different ultrasonic frequencies are all higher than 20000HZ, two ultrasonic frequency differences are 20HZ～12000HZ, 555 IC chips have 4 and both function as unstable state multi-frequency generator, wherein 2 555 IC chips are connected on power amplifier, produce high-frequency sound, other 2 555 IC chips produce modulation signal and by corresponding Signal Regulation, trimmer potentiometer regulates the concussion frequency of signal.
Preferably, described power amplifier is MOSFET pipe.
Further, also including fin, described power amplifier is installed on a heat sink.
Further, trim-pot is in respect of multiple, and the wherein frequency of 2 trimmer potentiometer adjustment signals, 2 trimmer potentiometers regulate the amplitude of signals, compensate error.
Preferably, two different ultrasonic frequencies respectively 20000HZ and 22000HZ.
The invention has the beneficial effects as follows:
The present invention to produce beat tone phenomenon, produces new sound, it does not have sound source, also without direction, produces a desired effect with the different ultrasound wave of two kinds of frequencies in the tympanum of people.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the present invention is further detailed explanation.
Fig. 1 is ultrasound wave beat tone generator hardware block diagram of the present invention.
Fig. 2 is ultrasound wave beat tone generator circuit figure of the present invention.
Detailed description of the invention
Below in conjunction with accompanying drawing, embodiments of the invention are described in detail, but the multitude of different ways that the present invention can be defined by the claims and cover is implemented.
As depicted in figs. 1 and 2, disclosure one ultrasound wave beat tone generator, including agitator 1, agitator 24, power amplifier 2, piezoelectricity tweeter 3, fin, 555 IC chips and trimmer potentiometer, agitator 1, agitator 24 respectively with power amplifier 2, piezoelectricity tweeter 3 forms two circuit and produces two different ultrasonic frequencies, two different ultrasonic frequencies respectively 20000HZ and 22000HZ, 555 IC chips have 4 and both function as unstable state multi-frequency generator, wherein 2 555 IC chips are connected on power amplifier 2, produce high-frequency sound, other 2 555 IC chips produce modulation signal and by corresponding Signal Regulation, trimmer potentiometer regulates the concussion frequency of signal.
In the present embodiment, described power amplifier 2 is managed for MOSFET, and MOSFET pipe is installed on a heat sink.
Trim-pot is in respect of 6, and the wherein frequency of 2 trimmer potentiometer adjustment signals, 2 trimmer potentiometers regulate the amplitude of signals, compensate error.
In same time and same place, when vibrating with the tuning fork of two different frequencies, people can not only hear two reference tone reftones sent by tuning fork, but also hears a significantly high and very low tone simultaneously. Here it is the mutual synergistic effect of two original frequencies " sum " and " difference ", this effect is referred to as beat tone, beat tone is not produced by sound source, but people is in two sound source regions, the tympanum of people creates new vibration, such as the frequency of vibration of an a 800HZ and 300HZ, people just can hear 500HZ low frequency (difference of 800-300) and the sound of 1100HZ high frequency (800+300 sum).
If being 19000HZ and the 20000HZ sound of more than 18000HZ (people can't hear) respectively by ultrasonic frequency, people can't hear the hyperacoustic sound of the two. But two new tones will be produced when both tones mix in the ear of people, one 39000HZ sound wave (sum people can't hear) and 1000HZ sound wave (dispatch a person can hear), the sound of this difference can produce a kind of strange sensation in people's ear: sound produces in the brain of people, but does not know that what sound come from. If ultrasound wave is produced by high-power source, discomfort will be produced in the ear of people.
Invention described above embodiment, is not intended that limiting the scope of the present invention. Any amendment, equivalent replacement and improvement etc. made within the spirit and principles in the present invention, should be included within the claims of the present invention.
Claims (5)
1. ultrasound wave beat tone generator, it is characterized in that, including agitator one, agitator two, power amplifier, piezoelectricity tweeter, 555 IC chips and trimmer potentiometer, agitator one, agitator two respectively with power amplifier, piezoelectricity tweeter forms two circuit and produces two different ultrasonic frequencies, two different ultrasonic frequencies are all higher than 20000HZ, two ultrasonic frequency differences are 20HZ～12000HZ, 555 IC chips have 4 and both function as unstable state multi-frequency generator, wherein 2 555 IC chips are connected on power amplifier, produce high-frequency sound, other 2 555 IC chips produce modulation signal and by corresponding Signal Regulation, trimmer potentiometer regulates the concussion frequency of signal.
2. ultrasound wave beat tone generator according to claim 1, it is characterised in that described power amplifier is MOSFET pipe.
3. ultrasound wave beat tone generator according to claim 1, it is characterised in that also include fin, described power amplifier is installed on a heat sink.
4. ultrasound wave beat tone generator according to claim 1, it is characterised in that trim-pot is in respect of multiple, and wherein 2 trimmer potentiometers regulate the frequency of signals, and 2 trimmer potentiometers regulate the amplitude of signals, compensate error.
5. ultrasound wave beat tone generator according to claim 1, it is characterised in that two different ultrasonic frequencies respectively 20000HZ and 22000HZ.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510809276.9A CN105681962A (en) | 2015-11-19 | 2015-11-19 | Ultrasonic beat tone generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510809276.9A CN105681962A (en) | 2015-11-19 | 2015-11-19 | Ultrasonic beat tone generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105681962A true CN105681962A (en) | 2016-06-15 |
Family
ID=56946899
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510809276.9A Pending CN105681962A (en) | 2015-11-19 | 2015-11-19 | Ultrasonic beat tone generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105681962A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1229542A (en) * | 1996-07-17 | 1999-09-22 | 美国技术公司 | Acoustic heterodyne device and method |
| CN2398793Y (en) * | 1999-08-19 | 2000-09-27 | 李秀元 | Ultrasonic loudspeaker |
| WO2013051400A1 (en) * | 2011-10-03 | 2013-04-11 | 株式会社村田製作所 | Ultrasonic-wave generation device |
| CN103246980A (en) * | 2012-02-02 | 2013-08-14 | 阿里巴巴集团控股有限公司 | Information output method and server |
| CN205160771U (en) * | 2015-11-19 | 2016-04-13 | 程既武 | Panic ware |
-
2015
- 2015-11-19 CN CN201510809276.9A patent/CN105681962A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1229542A (en) * | 1996-07-17 | 1999-09-22 | 美国技术公司 | Acoustic heterodyne device and method |
| CN2398793Y (en) * | 1999-08-19 | 2000-09-27 | 李秀元 | Ultrasonic loudspeaker |
| WO2013051400A1 (en) * | 2011-10-03 | 2013-04-11 | 株式会社村田製作所 | Ultrasonic-wave generation device |
| CN103246980A (en) * | 2012-02-02 | 2013-08-14 | 阿里巴巴集团控股有限公司 | Information output method and server |
| CN205160771U (en) * | 2015-11-19 | 2016-04-13 | 程既武 | Panic ware |
Non-Patent Citations (2)
| Title |
|---|
| 刘多忍: "试验用超声波发生器", 《电声技术》 * |
| 李希文、李建、李智奇等: "《传感器与信号调理技术》", 1 December 2008 * |
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| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160615 |