CN205038345U - Ultrasonic ranging device - Google Patents
Ultrasonic ranging device Download PDFInfo
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- CN205038345U CN205038345U CN201520814999.3U CN201520814999U CN205038345U CN 205038345 U CN205038345 U CN 205038345U CN 201520814999 U CN201520814999 U CN 201520814999U CN 205038345 U CN205038345 U CN 205038345U
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- Prior art keywords
- ultrasonic probe
- silica gel
- soft silica
- ultrasonic
- range finder
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Abstract
The utility model provides an ultrasonic ranging device. A soft silica gel cover and with that ultrasonic ranging device includes ultrasonic transducer, is used for to absorb the ultrasonic wave shear wave ultrasonic transducer's signal end electric connection's measurement circuit board, the cladding of soft silica gel cover is in ultrasonic transducer's side. The utility model discloses a cladding of soft silica gel cover is in ultrasonic transducer's side, utilizes the mechanical shock's that soft silica gel material led to the fact the ultrasonic wave shear wave buffering and absorption, very big degree cut down the ultrasonic wave shear wave to returning the interference of waves, especially install the circumstances of shell under, also can reach the measuring distance of expectation.
Description
Technical field
The utility model relates to ultrasonic ranging field, particularly relates to a kind of supersonic range finder.
Background technology
At present, ultrasound wave has the advantages such as directive property is strong, energy ezpenditure is slow, propagation distance is far away, and hardware circuit is simple, computing is easy, so flourish along with science and technology, extensively adopts hyperacoustic mode in distance measuring equipment.Ultrasonic range finder has very large development space as a kind of novel important tool in many-side, will towards higher location, more high-precision future development.Undoubtedly, following sonar technology will integrate with other smart machines, integrated and merge with other surveying instruments, form many range findings from the high-end devices such as instrument, spacescan.
The principle of ultrasonic ranging is generally the transmitting and receiving utilizing sound wave, calculates distance according to the time that ultrasound wave is propagated in media as well.Ultrasonic technique is completed by the process of hyperacoustic generation, propagation and reception.Ultrasound wave can produce the wave of oscillation of three kinds of forms in media as well: ultrasonic transverse wave, compressional wave and surface wave.Shear wave is the ripple of particle vibration direction perpendicular to the direction of propagation; Compressional wave is the particle vibration direction ripple consistent with the direction of propagation; Surface wave be particle vibration between compressional wave and shear wave, along surface propagate ripple.
1) velocity of propagation of compressional wave in solid dielectric:
E in formula-Young mould;
μ-Poisson's coefficient;
K-volume elasticity mould;
G-snip springform.
ρ-Media density
2) transverse wave velocity formula is
In solids, μ, between 0-5, therefore generally can be considered that transverse wave velocity is the half of compressional wave.Ultrasonic transverse wave is a kind of undesired signal for distance measuring equipment, can have influence on the detection of echo, thus brings interference to the calculating of time, affects blind area and the measuring distance of Ultrasonic ranging device.Ultrasonic transverse wave can be propagated in solid dielectric, causes strengthening the conduction of ultrasonic transverse wave, as the parts such as shell, range-measuring circuit plate directly contacted with ultrasonic probe.Thus how taking appropriate measures and cut down the interference of ultrasonic transverse wave, is the problem that industry needs solution badly.
Utility model content
The utility model provides a kind of supersonic range finder, the problem disturbed by ultrasonic transverse wave during for solving ultrasonic probe range finding.
The utility model embodiment is by the following technical solutions:
The utility model provides a kind of supersonic range finder, the range-measuring circuit plate comprising ultrasonic probe, overlap and be electrically connected with the signal end of described ultrasonic probe for the soft silica gel absorbing ultrasonic transverse wave, described soft silica gel cover is coated on the side of described ultrasonic probe.
Preferably, the hardness of described soft silica gel cover is hs27 to hs33.
Preferably, also comprise shell, described ultrasonic ranging circuit board is fixedly installed in described shell, and described ultrasonic probe is fixedly connected with by described soft silica gel cover with described shell.
Preferably, described shell is provided with ultrasonic probe fixed part, described soft silica gel cover outside surface is adjacent to the ultrasonic probe fixed part sidewall in described shell, and described ultrasonic probe is fixedly connected with by described soft silica gel cover with described shell.
Preferably, described soft silica gel cover inwall is male and fomale(M&F) structure, by the convex portions of male and fomale(M&F) structure and the exterior surface of described ultrasonic probe.
Preferably, the convex portions of described male and fomale(M&F) structure is protruding reticulate texture.
Preferably, the convex portions of described male and fomale(M&F) structure is the contact of some projections.
Preferably, the signal end of described range-measuring circuit plate is electrically connected with the signal end of described ultrasonic probe by contacting or is electrically connected by wire.
Preferably, described ultrasonic probe is transceiver ultrasonic probe or transmitting-receiving split ultrasonic probe.
Preferably, described ultrasonic probe is piezoelectric ceramic type ultrasonic probe.
Compared with prior art, a kind of supersonic range finder that the utility model provides, has following beneficial effect:
The utility model is coated on the side of ultrasonic probe by soft silica gel cover, utilize soft silica gel material to the buffering of the mechanical shock that ultrasonic transverse wave causes and absorption, cut down ultrasonic transverse wave significantly to the interference of echo, especially, when mounting casing, the measuring distance of expectation can also be reached.
Accompanying drawing explanation
Fig. 1 is the fractionation structural representation of first embodiment of a kind of supersonic range finder that the utility model provides.
Fig. 2 is the fractionation structural representation of second embodiment of a kind of supersonic range finder that the utility model provides.
Fig. 3 is the mounting structure schematic diagram one of second embodiment of a kind of supersonic range finder that the utility model provides.
Fig. 4 is the mounting structure schematic diagram two of second embodiment of a kind of supersonic range finder that the utility model provides.
Embodiment
The technical matters solved for making the utility model, the technical scheme of employing and the technique effect that reaches are clearly, be described in further detail below in conjunction with the technical scheme of accompanying drawing to the utility model embodiment, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those skilled in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
Fig. 1 illustrates the structural representation of a kind of supersonic range finder first embodiment provided according to the utility model.A kind of supersonic range finder of the present embodiment comprises ultrasonic probe 120, for the soft silica gel cover 110 that absorbs ultrasonic transverse wave and the range-measuring circuit plate 130 is electrically connected with the signal end of ultrasonic probe 120, soft silica gel overlaps the side that 110 are coated on ultrasonic probe 120.
The signal end of range-measuring circuit plate 130 is electrically connected with the signal end of ultrasonic probe 120 by contacting or is electrically connected by wire.Wherein, contact is electrically connected can for the signal end pin of ultrasonic probe 120 and pad on range-measuring circuit plate 130 be by welding or directly contact electric connection, range-measuring circuit plate 130 provides the ultrasonic signal of the modulating frequency needed for transmitting for ultrasonic probe, modulating frequency can be 40KHz, 120KHz etc., and for modulating ultrasonic signal, demodulation, signal amplifies and calculation process, finally draw the voltage signal with distance dependent, modulation circuit can be comprised in range-measuring circuit plate 130, demodulator circuit, amplifying circuit etc., it is prior art herein, do not repeat them here.
Wherein, ultrasonic probe 120 can be piezoelectric ceramic type ultrasonic probe, it can be transceiver ultrasonic probe or transmitting-receiving split ultrasonic probe, transmitting-receiving integrated probe is same ultrasonic probe can send ultrasound wave, also can receive ultrasound wave, receive and dispatch split type probe and be then divided into ultrasound wave transmitting probe and ultrasound wave receiving transducer.
The ultrasound wave Received signal strength end of transmitting-receiving integrated probe and the ultrasound wave of range-measuring circuit plate 130 send signal end and are electrically connected, and the ultrasound wave transmission signal end of transmitting-receiving integrated probe and the ultrasound wave Received signal strength end of range-measuring circuit plate 130 are electrically connected; Receiving and dispatching split type probe then uses the ultrasound wave Received signal strength end of the transmission signal end of ultrasound wave transmitting probe and range-measuring circuit plate 130 to be electrically connected, and uses the Received signal strength end of ultrasound wave receiving transducer and the ultrasound wave of range-measuring circuit plate 130 to send signal end to be electrically connected.
The utility model is coated on the side of ultrasonic probe by soft silica gel cover, utilize soft silica gel material to the buffering of the mechanical shock that ultrasonic transverse wave causes and absorption, cut down ultrasonic transverse wave significantly to the interference of echo, in order to make the assimilation effect of ultrasonic transverse wave more excellent, the hardness of soft silica gel cover is hs27 to hs33.
Such as, as in accompanying drawing 1, ultrasonic probe 120 adopts piezoelectric ceramic type ultrasonic probe, and for receiving and dispatching split type probe, ultrasonic probe 120 comprises ultrasound wave transmitting probe and ultrasound wave receiving transducer.When ultrasound wave transmitting probe sends the opening direction propagation of ultrasonic compressional wave direction ultrasonic probe 120, ultrasonic transverse wave is then propagated along the direction on ultrasonic probe 120 opening side, in order to the interference of less ultrasonic transverse wave, the side of ultrasound wave transmitting probe and ultrasound wave receiving transducer is then coated on by soft silica gel cover, utilize soft silica gel material to the buffering of ultrasonic probe 120 mechanical shock that ultrasonic transverse wave causes and absorption, cut down ultrasonic transverse wave significantly to the interference of echo.In order to make the assimilation effect of ultrasonic transverse wave more excellent, the hardness of soft silica gel cover is hs30.
Wherein, in order to reduce the contact area with ultrasonic probe 120, it is male and fomale(M&F) structure that soft silica gel overlaps 110 inwalls, by the convex portions 150 of male and fomale(M&F) structure and the exterior surface of ultrasonic probe 120, reduce shear wave by minimizing further with the contact area of ultrasonic probe 120 and the vibrations that ultrasonic probe 120 causes are reduced.
Such as, as in accompanying drawing 1, the convex portions 150 of male and fomale(M&F) structure is protruding reticulate texture.
Or the convex portions 150 of male and fomale(M&F) structure also can be protruding contact structure.
Fig. 2 to 4 illustrates the structural representation of a kind of supersonic range finder second embodiment provided according to the utility model.Compared to a kind of supersonic range finder first embodiment, difference is to add shell 140, when mounting casing 140, prior art is conducted in shell by ultrasonic transverse wave, cause strengthening the conduction of ultrasonic transverse wave, the detection of ultrasonic probe 120 echo can be had influence on.
Therefore, in the present embodiment, range-measuring circuit plate 130 is fixedly installed in shell 140, and ultrasonic probe 120 overlaps 110 with shell 140 by soft silica gel and is fixedly connected with.
Wherein, shell 140 is provided with ultrasonic probe fixed part 141, soft silica gel overlaps 110 outside surfaces and is adjacent to ultrasonic probe fixed part 141 inwall, makes ultrasonic probe 120 overlap 110 with shell 140 by soft silica gel and is fixedly connected with.Shell 140 is 110 used for fixing range-measuring circuit plate 130 and soft silica gel overlap, and meanwhile, shell 140 also has the effect of protection ultrasonic probe 120 and moulding.
Such as, as accompanying drawing 4, shell 140 is provided with ultrasonic probe fixed part, ultrasonic probe fixed part 141 is through hole, soft silica gel overlaps on the through-hole wall that 110 outside surfaces are adjacent in shell 140, makes ultrasonic probe 120 overlap 110 with shell 140 by soft silica gel and is fixedly connected with.The side that soft silica gel cover 110 is arranged on ultrasonic probe 120, avoids it directly to contact with shell 140, and can cause the mechanical shock of ultrasonic probe 120 by absorption portion shear wave, thus weakens the impact that shear wave brings range finding.
In sum, the utility model is coated on the side of ultrasonic probe by soft silica gel cover, utilize soft silica gel material to the buffering of the mechanical shock that ultrasonic transverse wave causes and absorption, cut down ultrasonic transverse wave significantly to the interference of echo, especially, when mounting casing, the measuring distance of expectation can also be reached.
Above-described embodiment is illustrative principle of the present utility model and effect thereof only, but not for limiting the utility model.Any person skilled in the art scholar all without prejudice under spirit of the present utility model and category, can modify above-described embodiment or changes.Therefore, such as have in art and usually know that the knowledgeable modifies or changes not departing from all equivalences completed under the spirit and technological thought that the utility model discloses, must be contained by claim of the present utility model.
Claims (10)
1. a supersonic range finder, it is characterized in that, the range-measuring circuit plate comprising ultrasonic probe, overlap and be electrically connected with the signal end of described ultrasonic probe for the soft silica gel absorbing ultrasonic transverse wave, described soft silica gel cover is coated on the side of described ultrasonic probe.
2. a kind of supersonic range finder as claimed in claim 1, is characterized in that, the hardness of described soft silica gel cover is hs27 to hs33.
3. a kind of supersonic range finder as claimed in claim 1, is characterized in that, also comprise shell, and described ultrasonic ranging circuit board is fixedly installed in described shell, and described ultrasonic probe is fixedly connected with by described soft silica gel cover with described shell.
4. a kind of supersonic range finder as claimed in claim 3, it is characterized in that, described shell is provided with ultrasonic probe fixed part, described soft silica gel cover outside surface is adjacent to described ultrasonic probe fixed part inwall, and described ultrasonic probe is fixedly connected with by described soft silica gel cover with described shell.
5. a kind of supersonic range finder as claimed in claim 1, is characterized in that, described soft silica gel cover inwall is male and fomale(M&F) structure, by the convex portions of male and fomale(M&F) structure and the exterior surface of described ultrasonic probe.
6. a kind of supersonic range finder as claimed in claim 5, is characterized in that, the convex portions of described male and fomale(M&F) structure is protruding reticulate texture.
7. a kind of supersonic range finder as claimed in claim 5, is characterized in that, the convex portions of described male and fomale(M&F) structure is the contact of some projections.
8. a kind of supersonic range finder as claimed in claim 1, is characterized in that, the signal end of described range-measuring circuit plate is electrically connected with the signal end of described ultrasonic probe by contacting or is electrically connected by wire.
9. a kind of supersonic range finder as claimed in claim 1, is characterized in that, described ultrasonic probe is transceiver ultrasonic probe or transmitting-receiving split ultrasonic probe.
10. as a kind of supersonic range finder in claim 1-9 as described in any one, it is characterized in that, described ultrasonic probe is piezoelectric ceramic type ultrasonic probe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520814999.3U CN205038345U (en) | 2015-10-20 | 2015-10-20 | Ultrasonic ranging device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520814999.3U CN205038345U (en) | 2015-10-20 | 2015-10-20 | Ultrasonic ranging device |
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| CN205038345U true CN205038345U (en) | 2016-02-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520814999.3U Expired - Fee Related CN205038345U (en) | 2015-10-20 | 2015-10-20 | Ultrasonic ranging device |
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| CN (1) | CN205038345U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105223574A (en) * | 2015-10-20 | 2016-01-06 | 上海未来伙伴机器人有限公司 | A kind of supersonic range finder |
| CN105699978A (en) * | 2016-03-04 | 2016-06-22 | 陈武强 | Automobile supersonic wave detecting method and sensor |
| CN105717510A (en) * | 2016-03-04 | 2016-06-29 | 陈武强 | Automobile ultrasonic detecting method and sensor |
-
2015
- 2015-10-20 CN CN201520814999.3U patent/CN205038345U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105223574A (en) * | 2015-10-20 | 2016-01-06 | 上海未来伙伴机器人有限公司 | A kind of supersonic range finder |
| CN105699978A (en) * | 2016-03-04 | 2016-06-22 | 陈武强 | Automobile supersonic wave detecting method and sensor |
| CN105717510A (en) * | 2016-03-04 | 2016-06-29 | 陈武强 | Automobile ultrasonic detecting method and sensor |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160217 Termination date: 20201020 |
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| CF01 | Termination of patent right due to non-payment of annual fee |