CN2784945Y - Ultrasonic distance-measuring sensor - Google Patents
Ultrasonic distance-measuring sensor Download PDFInfo
- Publication number
- CN2784945Y CN2784945Y CN 200420040210 CN200420040210U CN2784945Y CN 2784945 Y CN2784945 Y CN 2784945Y CN 200420040210 CN200420040210 CN 200420040210 CN 200420040210 U CN200420040210 U CN 200420040210U CN 2784945 Y CN2784945 Y CN 2784945Y
- Authority
- CN
- China
- Prior art keywords
- ultrasonic
- circuit
- receiver
- pulse
- light velocity
- 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.)
- Expired - Lifetime
Links
Images
Abstract
The utility model relates to an ultrasonic distance-measuring sensor, which belongs to the technical field of teaching instruments. The utility model has the technical scheme that an independent ultrasonic transmitter and an independent ultrasonic receiver are designed; the ultrasonic transmitter and the ultrasonic receiver are optionally provided with a transmitting and a receiving devices of light-speed waves to form an active or a passive ultrasonic switch; the opening time t1 of the ultrasonic switch is utilized to be used as the time of start of transmission of the ultrasonic transmitter; the time t2 of ultrasonic wave reaching the ultrasonic receiver can be measured, and the propagation time of the ultrasonic wave can be obtained through t2 minus t1; thus, the distance between the ultrasonic transmitter and the ultrasonic receiver can be measured. The utility model has the advantages of elimination of blind area, large measuring ranges, high measuring precision and strong recognition capability, and the utility model can be used as experimental instrument equipment in middle school physics teaching.
Description
Technical field
The utility model relates to a kind of ultrasonic ranging sensor, specifically is used for the unidirectional ultrasonic ranging sensor of education experiment, belongs to technical field of teaching instruments.
Background technology
Forming the ultrasonic ranging sensor of product at present, all is the mode that adopts echo-bearing.This class device is integrated ultrasonic transmitter and receiver, i.e. transceiver.During work, at first launch ultrasound wave, treat ultrasound wave after forming reflection on the testee, its echo is received by this device.The transmitting-receiving mistiming and the velocity of sound according to recording can calculate the distance between this device and the testee.It is limited that this supersonic range finder detects distance, and exist and detect the blind area, and accuracy of detection is relatively poor and be subjected to noise jamming easily, and experiment effect is undesirable.
Summary of the invention
In order to overcome the deficiencies in the prior art, the utility model provides a kind of detection distance and does not detect the blind area, and accuracy of detection is high and be not vulnerable to noise jamming, and the desirable ultrasound wave of experiment effect is surveyed sensor.
The technical scheme that its technical matters that solves the utility model adopts is: changed the structure of transceiver, designed independently ultrasonic transmitter and ultrasonic receiver.The device that transmits and receives that light velocity ripple is installed arbitrarily on ultrasonic transmitter and the ultrasonic receiver constitutes initiatively or passive supersonic switch, utilizes supersonic switch opening time t
1As the time that ultrasonic transmitter begins to launch, ultrasound wave arrives the time t of ultrasonic receiver
2Can measure, so t
2-t
1Just can obtain hyperacoustic travel-time, thereby measure the distance between ultrasonic transmitter and the ultrasonic receiver.
Can design two kinds of supersonic range finders of active and passive formula based on technique scheme.
The principle of work of active ultrasonic emitting ranging scheme is as follows: ultrasonic transmitter is by certain time interval emission ultrasound wave, launch corresponding light velocity ripple signal simultaneously, ultrasonic receiver picks up counting when receiving light velocity ripple signal, stops timing when receiving ultrasonic signal.Because light velocity velocity of wave propagation is 300,000 thousand meter per seconds, it is propagated time spent and can be left in the basket in closely, so can think that ultrasonic receiver receives that the time of light velocity ripple is equal to the time that ultrasonic transmitter is launched light velocity ripple.The time of ultrasonic receiver record multiply by the velocity of sound and just obtains distance between transmitter and the receiver.
The principle of work of passive type ultrasonic emitting ranging scheme is as follows: light velocity wave transmitting device is set on ultrasonic receiver.This ultrasonic receiver picks up counting simultaneously by certain time interval emission light velocity ripple.Ultrasonic transmitter begins to launch ultrasound wave when receiving light velocity ripple signal, when receiving ultrasonic signal, ultrasonic receiver stops timing, because the light velocity is too fast, can be left in the basket the actuation time of electronic switch in the transmission time of light velocity ripple and the ultrasonic transmitter, just obtains distance between transmitter and the receiver so the time of ultrasonic receiver record be multiply by the velocity of sound.
Light velocity ripple in the utility model comprises visible light, invisible light and electromagnetic wave.
Concrete structure of the present utility model can be such: the ultrasonic ranging sensor comprises ultrasonic transmitter and the ultrasonic receiver composition that separates separately, it is characterized in that having installed on the ultrasonic transmitter light velocity wave launcher, the control end parallel connection of ultrasonic transmitter and light velocity wave launcher connects the formation control loop with the output terminal of a pulse signal generator; One and the corresponding light velocity ripple of light velocity wave launcher receiver have been installed on the ultrasonic receiver, the output terminal of light velocity ripple receiver connects the control end of pulse trigger, the output terminal of ultrasonic receiver connects pulse amplified shaping circuit, and the output terminal of pulse amplified shaping circuit connects the formation control loop with the control end of pulse trigger.
During the utility model work, ultrasonic transmitter on the ultrasonic transmitter and light velocity wave launcher intermittently send pulse ultrasonic wave and light velocity ripple synchronously under the control of pulse signal generator; Ultrasonic receiver on the ultrasonic receiver and light velocity ripple receiver receive signal separately, output signal is separately delivered to the control end of pulse trigger, the output terminal of pulse trigger will produce corresponding two different pulse signals, and these two different pulse signals are exactly signal of sensor.
These two different pulse signals are delivered in the processor handle, just can obtain the distance between ultrasonic transmitter and the ultrasonic receiver, thereby finish the problem of range finding.
The utility model has solved the problem that existing supersonic range finder exists pointedly, have following characteristics: (1) dead zone-eliminating, separating owing to employing ultrasonic emitting end and receiving end, no longer rely on echo, so fundamentally eliminated the ubiquitous measurement of existing equipment blind area; (2) finding range big, owing to do not rely on the echoed signal range finding, then can increase considerably finding range so improve emissive power a little, and extremely low to equipment requirements; (3) the measuring accuracy height, since ranging process in do not rely on echo, the stroke of range finding sound wave promptly is the distance between supersonic range finder and the testee, thereby reduced propagation medium (air) to influence that ultrasonic propagation caused, anti-air-flow or suspension strengthen the sound wave interference capability thereupon, and the reflecting surface of distance accuracy and testee and character of surface are irrelevant; (4) recognition capability strong, can in the more environment of testee, use.By light velocity ripple is carried out modulating-coding, can distinguish many testees, therefore possess the function of measuring a plurality of objects simultaneously.Can be used as the experimental instrument and equipment of physics teaching in secondary school.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further specified.
Fig. 1 is the electrical schematic diagram of the utility model ultrasonic transmitter.Fig. 2 is the electrical schematic diagram of the utility model ultrasonic receiver.
Embodiment
Embodiment is referring to accompanying drawing 1,2.
Present embodiment is the active ultrasonic emitting distance measuring sensor of a cover.The light velocity ripple of using is an infrared ray.Ultrasonic transmitter is launched one group of ultrasonic pulse every 20ms, launches the infrared pulse of same frequency modulation simultaneously.Output terminal with its external interface when ultrasonic receiver receives infrared pulse is changed to high level, again the output terminal of its external interface is changed to low level when receiving ultrasonic pulse.Like this, the equipment that links to each other with ultrasonic receiver will obtain the forward electric pulse that a width is directly proportional with tested distance every 20ms.
The ultrasonic ranging sensor comprises ultrasonic transmitter and the ultrasonic receiver composition that separates separately, it is characterized in that having installed on the ultrasonic transmitter light velocity wave launcher, the control end parallel connection of ultrasonic transmitter and light velocity wave launcher connects the formation control loop with the output terminal of a pulse signal generator; One and the corresponding light velocity ripple of light velocity wave launcher receiver have been installed on the ultrasonic receiver, the output terminal of light velocity ripple receiver connects the control end of pulse trigger, the output terminal of ultrasonic receiver connects pulse amplified shaping circuit, and the output terminal of pulse amplified shaping circuit connects the formation control loop with the control end of pulse trigger.
Light velocity wave launcher, light velocity ripple receiver are made of infrared transmitter, infrared light receiver.
Pulse signal generator is made of voltage controlled oscillator, and pulse trigger is made of the D flip-flop circuit.
The electrical schematic diagram of ultrasonic transmitter is seen accompanying drawing 1.Form by voltage controlled oscillator, infrared light radiating circuit, ultrasound emission circuit three parts: the gating pulse oscillator that 555 timers (U1) are formed, the high frequency oscillator that NAND gate circuit (U2A, U2B) is formed constitutes voltage controlled oscillator, forms the impulse oscillation signal source; NAND gate circuit (U2C), transistor Q2 and infrarede emitting diode D3 and peripheral circuit thereof are formed the infrared light radiating circuit; NAND gate circuit (U2D), transistor Q1, transformer T1, ultrasonic emitting sensor TT2 and peripheral circuit thereof are formed the ultrasound emission circuit.Under the excitation of the impulse oscillation signal that voltage controlled oscillator is exported, infrared light radiating circuit and ultrasound emission circuit synchronous working, send infrared light pulse and ultrasonic pulse signal simultaneously, cooperate with ultrasound wave receiving sensor circuit and can measure two kinds of distances between the sensor.
Wherein infrarede emitting diode D3 adopts HG501 type infrarede emitting diode or its replacement model.Ultrasonic emitting sensor TT2 adopts models such as general sensor such as UCM40T.It is the small-sized magnetic jar of 14mm that transformer T1 adopts diameter, elementary with diameter be the enameled wire of 0.25mm around 15 circles, secondary is that the enameled wire of 0.1mm forms around 150 circles with diameter.The value of other elements is indicated in the drawings, is general-purpose device, does not have other specific (special) requirements.
The electrical schematic diagram of ultrasonic receiver is seen accompanying drawing 2.Be made up of infrared signal receiving circuit, ultrasonic signal receiving circuit and pulse shaping circuit three parts: infrared receiving unit AS, not circuit (U5F) are formed infrared signal and are received amplifying circuit; Ultrasound wave receiving sensor T11, transistor Q11, operation amplifier circuit (U2, U4), not circuit (U5B, U5C) and peripheral circuit thereof are formed the ultrasonic signal receiving circuit; D type flip flop circuit (U6A) and peripheral circuit thereof are formed pulse shaping circuit.After circuit received infrared signal, pulse shaping circuit output high level received the output of ultrasonic signal afterpulse formation circuit subsequently and becomes low level, and collector for processing is sent in the output of pulse shaping circuit.The signal pulse width of pulse shaping circuit output was directly proportional with the mistiming of two kinds of signals (infrared light and ultrasound wave) like this, can calculate two sensors distance apart by its output pulse width when itself and ultrasonic transmit circuit are used.
Wherein infrared receiving module AS adopts DA5030-3 or its to substitute model.Ultrasound wave receiving sensor T11 adopts models such as general sensor such as UCM40R.The value of other elements is indicated in the drawings, is general-purpose device, does not have other specific (special) requirements.
Claims (5)
1, a kind of ultrasonic ranging sensor comprises ultrasonic transmitter and the ultrasonic receiver composition that separates separately, it is characterized in that having installed on the ultrasonic transmitter light velocity wave launcher, the control end parallel connection of ultrasonic transmitter and light velocity wave launcher connects the formation control loop with the output terminal of a pulse signal generator; One and the corresponding light velocity ripple of light velocity wave launcher receiver have been installed on the ultrasonic receiver, the output terminal of light velocity ripple receiver connects the control end of pulse trigger, the output terminal of ultrasonic receiver connects pulse amplified shaping circuit, and the output terminal of pulse amplified shaping circuit connects the formation control loop with the control end of pulse trigger.
2, ultrasonic ranging sensor according to claim 1 is characterized in that light velocity wave launcher, light velocity ripple receiver are made of infrared transmitter, infrared light receiver.
3, ultrasonic ranging sensor according to claim 1 is characterized in that pulse signal generator is made of voltage controlled oscillator, and pulse trigger is made of the D flip-flop circuit.
4, ultrasonic ranging sensor according to claim 1, it is characterized in that ultrasonic transmitter is made up of voltage controlled oscillator, infrared light radiating circuit, ultrasound emission circuit three parts: the gating pulse oscillator that 555 timers (U1) are formed, the high frequency oscillator that NAND gate circuit (U2A, U2B) is formed constitutes voltage controlled oscillator, forms the impulse oscillation signal source; NAND gate circuit (U2C), transistor (Q2) and infrarede emitting diode (D3) and peripheral circuit thereof are formed the infrared light radiating circuit; NAND gate circuit (U2D), transistor (Q1), transformer (T1), ultrasonic emitting sensor (TT2) and peripheral circuit thereof are formed the ultrasound emission circuit.
5, ultrasonic ranging sensor according to claim 1 is characterized in that ultrasonic receiver is made up of infrared signal receiving circuit, ultrasonic signal receiving circuit and pulse shaping circuit three parts: infrared receiving unit (AS), not circuit (U5F) are formed infrared signal and are received amplifying circuit; Ultrasound wave receiving sensor (T11), transistor (Q11), operation amplifier circuit (U2, U4), not circuit (U5B, U5C) and peripheral circuit thereof are formed the ultrasonic signal receiving circuit; D type flip flop circuit (U6A) and peripheral circuit thereof are formed pulse shaping circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420040210 CN2784945Y (en) | 2004-04-27 | 2004-04-27 | Ultrasonic distance-measuring sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420040210 CN2784945Y (en) | 2004-04-27 | 2004-04-27 | Ultrasonic distance-measuring sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2784945Y true CN2784945Y (en) | 2006-05-31 |
Family
ID=36771916
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420040210 Expired - Lifetime CN2784945Y (en) | 2004-04-27 | 2004-04-27 | Ultrasonic distance-measuring sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2784945Y (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102590816A (en) * | 2012-02-23 | 2012-07-18 | 江苏三通仪器系统有限公司 | Comprehensive ranging positioning signal sensor |
| CN101828129B (en) * | 2007-08-30 | 2013-01-23 | 日本电气株式会社 | Ultrasonic wave propagation time measuring system |
| CN103193158A (en) * | 2012-01-04 | 2013-07-10 | 上海港吉电气有限公司 | Wheel track-type crane position detection system |
| CN101487893B (en) * | 2008-01-16 | 2014-03-12 | 罗伯特·博世有限公司 | Method for operating ultrasound sensor and corresponding ultrasound sensor |
| CN105749543A (en) * | 2016-01-27 | 2016-07-13 | 哈尔滨若朋机器人有限责任公司 | Intelligent flying object target system |
| CN107390203A (en) * | 2016-05-16 | 2017-11-24 | 杭州海康机器人技术有限公司 | A kind of ultrasonic ranging method, apparatus and system |
| CN108519603A (en) * | 2018-03-08 | 2018-09-11 | 芜湖泰领信息科技有限公司 | Avoidance range-measurement system suitable for robot |
| CN108535733A (en) * | 2018-03-08 | 2018-09-14 | 芜湖泰领信息科技有限公司 | Ultrasonic evadible system |
| CN110142084A (en) * | 2019-04-09 | 2019-08-20 | 江西理工大学 | Crusher chamber wear monitoring method and its monitoring of structures |
| CN111596286A (en) * | 2020-06-12 | 2020-08-28 | 国创新能源汽车智慧能源装备创新中心(江苏)有限公司 | Distance measuring method and device |
| CN112162289A (en) * | 2020-08-28 | 2021-01-01 | 国创新能源汽车智慧能源装备创新中心(江苏)有限公司 | Ultrasonic ranging method and device |
-
2004
- 2004-04-27 CN CN 200420040210 patent/CN2784945Y/en not_active Expired - Lifetime
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101828129B (en) * | 2007-08-30 | 2013-01-23 | 日本电气株式会社 | Ultrasonic wave propagation time measuring system |
| CN101487893B (en) * | 2008-01-16 | 2014-03-12 | 罗伯特·博世有限公司 | Method for operating ultrasound sensor and corresponding ultrasound sensor |
| CN103193158A (en) * | 2012-01-04 | 2013-07-10 | 上海港吉电气有限公司 | Wheel track-type crane position detection system |
| CN103193158B (en) * | 2012-01-04 | 2015-04-01 | 上海港吉电气有限公司 | Wheel track-type crane position detection system |
| CN102590816A (en) * | 2012-02-23 | 2012-07-18 | 江苏三通仪器系统有限公司 | Comprehensive ranging positioning signal sensor |
| CN105749543A (en) * | 2016-01-27 | 2016-07-13 | 哈尔滨若朋机器人有限责任公司 | Intelligent flying object target system |
| CN107390203A (en) * | 2016-05-16 | 2017-11-24 | 杭州海康机器人技术有限公司 | A kind of ultrasonic ranging method, apparatus and system |
| CN107390203B (en) * | 2016-05-16 | 2019-10-22 | 杭州海康机器人技术有限公司 | A kind of ultrasonic ranging method, apparatus and system |
| CN108519603A (en) * | 2018-03-08 | 2018-09-11 | 芜湖泰领信息科技有限公司 | Avoidance range-measurement system suitable for robot |
| CN108535733A (en) * | 2018-03-08 | 2018-09-14 | 芜湖泰领信息科技有限公司 | Ultrasonic evadible system |
| CN110142084A (en) * | 2019-04-09 | 2019-08-20 | 江西理工大学 | Crusher chamber wear monitoring method and its monitoring of structures |
| CN110142084B (en) * | 2019-04-09 | 2022-02-22 | 江西理工大学 | Crushing cavity wear monitoring method |
| CN111596286A (en) * | 2020-06-12 | 2020-08-28 | 国创新能源汽车智慧能源装备创新中心(江苏)有限公司 | Distance measuring method and device |
| CN112162289A (en) * | 2020-08-28 | 2021-01-01 | 国创新能源汽车智慧能源装备创新中心(江苏)有限公司 | Ultrasonic ranging method and device |
| CN112162289B (en) * | 2020-08-28 | 2023-11-17 | 国创移动能源创新中心(江苏)有限公司 | Ultrasonic ranging method and device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105066918A (en) | Ultrasonic underwater target thickness measuring system and thickness measuring method | |
| CN101173986B (en) | Ultrasonic distance measuring apparatus without blind zone | |
| CN2784945Y (en) | Ultrasonic distance-measuring sensor | |
| CN101334472B (en) | Ultrasonic ranging system suitable for special type robot | |
| CN201298077Y (en) | An error compensation type ultrasonic ranging apparatus | |
| CN1017280B (en) | Distance measuring method and apparatus therefor | |
| CN103116164B (en) | Heterodyne pulse compression type multifunctional laser radar and controlling method thereof | |
| CN102053254A (en) | Laser ultrasonic detection system and detection method thereof | |
| CN103941259A (en) | Ultrasonic ranging method and ranging device with high anti-interference performance | |
| US11175402B2 (en) | Time-varying template for improved short-distance performance in coded ultrasonic ranging | |
| CN101799545A (en) | Ultrasonic based dynamic distance measurement method and system | |
| CN104656083A (en) | Ultrasonic distance measuring system having temperature compensation function and adopting pulse counting | |
| CN104536003A (en) | Ultrasonic distance measuring method and device based on multiple emission frequencies | |
| CN103454643B (en) | Method for accurately measuring constant sound pressure FSK ultrasonic wave transition time | |
| CN208013420U (en) | A kind of correlation type ultrasonic rangefinder | |
| CN102129071A (en) | Ultrasonic distance measurer | |
| CN103616691A (en) | Ultrasonic ranging device | |
| CN201654231U (en) | Dynamic distance measuring system based on ultrasonic waves | |
| CN111983621A (en) | Non-blind area ultrasonic ranging method | |
| CN202119912U (en) | Transmission line identification device based on ultrasonic wave echo characteristics | |
| CN200989943Y (en) | Non-blind zone ultrasonic range finder | |
| CN103969648B (en) | Ultrasonic ranging method | |
| CN105467395A (en) | Super-remote-distance ultrasonic measuring instrument | |
| CN203705637U (en) | High-precision ultrasonic range finder | |
| CN1241712A (en) | Method of reducing blind zone of supersonic range finder |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: SHANDONG PROVINCE YUANDA NETWORK MEDIA CO., LTD. Free format text: FORMER NAME: SHANDONG PROVINCE YUANDA NETWORKS MULTIMEDIA CO.,LTD. |
|
| CP03 | Change of name, title or address |
Address after: No. 15 Huaxin Road, Licheng District, Shandong, Ji'nan Province, China: 250100 Patentee after: Shandong Yuanda Net & Multimedia Co., Ltd. Address before: Room 503, new campus library, Shandong University, No. 27 South Grand Road, Lixia District, Shandong, Ji'nan, China: 250100 Patentee before: Shandong Yuda Network Multimedia Co., Ltd. |
|
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20140427 Granted publication date: 20060531 |
|
| DD01 | Delivery of document by public notice |
Addressee: Tian Fang Document name: Notification of Expiration of Patent Right Duration |