CN201583657U - Ultrasonic ranging device with temperature and humidity compensation - Google Patents
Ultrasonic ranging device with temperature and humidity compensation Download PDFInfo
- Publication number
- CN201583657U CN201583657U CN2009202904950U CN200920290495U CN201583657U CN 201583657 U CN201583657 U CN 201583657U CN 2009202904950 U CN2009202904950 U CN 2009202904950U CN 200920290495 U CN200920290495 U CN 200920290495U CN 201583657 U CN201583657 U CN 201583657U
- Authority
- CN
- China
- Prior art keywords
- temperature
- humidity
- module
- microprocessor module
- distance measuring
- 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 - Fee Related
Links
- 238000005259 measurement Methods 0.000 claims abstract description 11
- 238000009529 body temperature measurement Methods 0.000 claims abstract description 5
- 238000006243 chemical reaction Methods 0.000 abstract description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 229920006395 saturated elastomer Polymers 0.000 description 3
- 238000002604 ultrasonography Methods 0.000 description 3
- 239000003990 capacitor Substances 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Images
Landscapes
- Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
Abstract
本实用新型涉及一种带有温度和湿度补偿的超声波测距装置。包括由超声波换能器、功放电路和微处理器模块组成的超声波测距装置，其特征是还包括在微处理器模块上分别连接的一个温度测量模块和一个湿度测量模块，且在微处理器模块中固化有根据温度和湿度变化进行声速补偿的程序。本实用新型不仅提高了原有超声波测距装置的测距精度，而且省去了通常温度、湿度采集需要的模数转换电路，具有结构简单、成本低廉等优点。
The utility model relates to an ultrasonic distance measuring device with temperature and humidity compensation. The ultrasonic distance measuring device comprising an ultrasonic transducer, a power amplifier circuit and a microprocessor module is characterized in that it also includes a temperature measurement module and a humidity measurement module respectively connected to the microprocessor module, and the microprocessor module In the module, there is a program for sound velocity compensation according to temperature and humidity changes. The utility model not only improves the distance measuring accuracy of the original ultrasonic distance measuring device, but also saves the analog-to-digital conversion circuit required for the usual temperature and humidity collection, and has the advantages of simple structure and low cost.
Description
Technical field
The utility model relates to a kind of supersonic range finder, is a kind of supersonic range finder that has the temperature and humidity compensation specifically.
Background technology
Supersonic range finder is widely used in thing position (liquid level) monitoring, and robot is crashproof, and various ultrasound waves are near switch, and association area such as burglar alarm, has many advantages such as reliable operation, easy for installation, sensitivity height.The ultimate principle of supersonic range finder is: supersonic range finder emission ultrasound wave, and reception runs into the reflection echo of testee, then according to determining the distance of ultrasonic transducer to the velocity of sound (under the standard state, the velocity of sound in the dry air is 331.5 meter per seconds) time that receives echo and the known air to testee from the emission ultrasound wave.This supersonic range finder is more accurate under the little environment of temperature and relative humidity variations, but because the airborne velocity of sound is subjected to the influence of environment temperature, humidity bigger, therefore supersonic range finder is when temperature and humidity changes big environment, can produce bigger measuring error, influence measuring accuracy.
Summary of the invention
The purpose of this utility model provides a kind of supersonic range finder with the temperature and humidity compensation, to remedy the deficiencies in the prior art.
Technical conceive of the present utility model: mainly comprising microprocessor module, on the basis of the existing supersonic range finder that power amplifier and ultrasonic transducer are formed, consider that THE VELOCITY OF SOUND IN AIR is subjected to the influence of environment temperature and humidity, the temperature-measuring module testing environment temperature of at first utilizing existing one-line digital temperature sensor to constitute, detect relative humidity with the moisture measurement module of pulse output, according to the known relation of THE VELOCITY OF SOUND IN AIR and temperature and relative humidity the velocity of sound is compensated then and obtain real velocity of sound, and calculate tested distance according to the velocity of sound that compensated.
The utility model comprises the supersonic range finder of being made up of ultrasonic transducer, power amplifier and microprocessor module, it is characterized in that also being included in a temperature-measuring module and a moisture measurement module of connecting respectively on the microprocessor module, and in microprocessor module, be solidified with the program that velocity of sound compensation is carried out in variation according to temperature and humidity.
The utility model has not only improved the distance accuracy of original supersonic range finder, and has saved the analog to digital conversion circuit that typical temperature, humidity collection need, and has advantages such as simple in structure, with low cost.
Description of drawings
Fig. 1 is a general structure synoptic diagram of the present utility model.
Fig. 2 is a program circuit synoptic diagram of the present utility model.
Wherein, 1 microprocessor module, 2 temperature-measuring modules, 3 moisture measurement modules, 4 input/output port, 5 counter input ports, 6 power amplifiers, 7 ultrasonic transducers.
Embodiment
As shown in Figure 1, the utility model comprises power amplifier 6 that is connected on the microprocessor module 1 and the ultrasonic transducer 7 that is connected with power amplifier 6, it is characterized in that also being included on the input/output port 4 of microprocessor module 1 and be connected with temperature-measuring module 2, with on the counter input port 5 of microprocessor module 1, be connected with moisture measurement module 3, and in microprocessor module 1, be solidified with according to temperature and humidity and change the program carry out velocity of sound compensation.
The one-line digital temperature sensor DS18B20 that said temperature measurement module 2 is produced for DALLAS company, microprocessor module 1 is by the temperature data of an input/output port 4 collecting temperature measurement modules 2 outputs.
Above-mentioned moisture measurement module 3 is that main element constitutes with humidity-sensitive capacitor HS1101 and TLC555, the proportional pulse signal of its output frequency and humidity, and be connected with the counter input port 5 of microprocessor module 1.Microprocessor module 1 calculates humidity by the frequency of measuring moisture measurement module 3 output pulse signals.
With single chip computer AT 89S52 is the microprocessor module 1 of main element, and microprocessor module 1 calculates real velocity of sound under the environment at the scene according to the relation of THE VELOCITY OF SOUND IN AIR and environment temperature, humidity, finishes compensation.
Fig. 2 is the program flow diagram of the present utility model that is solidificated in the microprocessor module 1.Its flow process is as follows: the pulse signal frequency of measurement counter input port 5 input at first, promptly the pulse signal of moisture measurement module 3 outputs is counted within a certain period of time; Obtain relative humidity according to the frequency of moisture measurement module output signal and the existing computing formula of relative humidity again; Microprocessor module 1 is according to the temperature data of communication protocol collecting temperature measurement module 2 outputs of line formula digital temperature sensor DS18B20; And then obtain the saturated vapor pressure of collecting temperature value correspondence according to the saturated vapor pressure table of existing water vapor; With the saturated vapor pressure of above-mentioned water vapor with gather relative humidity and multiply each other and obtain the partial pressure of water in air steam; At last calculate acoustic velocity value under Current Temperatures, the relative humidity, finish compensation according to the existing relation of the partial pressure of collecting temperature, relative humidity, above-mentioned water in air steam and the velocity of sound.
Claims (2)
1. one kind has the supersonic range finder that temperature and humidity compensates, comprise power amplifier (6) that is connected on the microprocessor module (1) and the ultrasonic transducer (7) that is connected with power amplifier (6), it is characterized in that also being included in being connected with temperature-measuring module (2) on the input/output port (4) of microprocessor module (1), with on the counter input port (5) of microprocessor module (1), be connected with moisture measurement module (3), and in microprocessor module (1), be solidified with according to temperature and humidity and change the program carry out velocity of sound compensation.
2. the supersonic range finder that has the temperature and humidity compensation as claimed in claim 1 is characterized in that said temperature measurement module (2) is that model is the one-line digital temperature sensor of DS18B20.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202904950U CN201583657U (en) | 2009-12-20 | 2009-12-20 | Ultrasonic ranging device with temperature and humidity compensation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202904950U CN201583657U (en) | 2009-12-20 | 2009-12-20 | Ultrasonic ranging device with temperature and humidity compensation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201583657U true CN201583657U (en) | 2010-09-15 |
Family
ID=42725664
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202904950U Expired - Fee Related CN201583657U (en) | 2009-12-20 | 2009-12-20 | Ultrasonic ranging device with temperature and humidity compensation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201583657U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104199036A (en) * | 2014-09-26 | 2014-12-10 | 上海未来伙伴机器人有限公司 | Distance measuring device and robot system |
| TWI477751B (en) * | 2011-12-21 | 2015-03-21 | Taidoc Technology Corp | Temperature sensing device and method thereof |
| CN106679745A (en) * | 2016-11-25 | 2017-05-17 | 广州周立功单片机科技有限公司 | Temperature compensation method and system and water flow detection method and system for ultrasonic water meter |
| CN109001738A (en) * | 2018-06-11 | 2018-12-14 | 燕山大学 | A kind of the High Precision Underwater distance-measuring equipment and distance measuring method isolated based on transmitting-receiving |
| CN110865377A (en) * | 2019-11-14 | 2020-03-06 | 四川千行你我科技股份有限公司 | Real-time displacement monitoring and early warning system and method for railway contact network |
-
2009
- 2009-12-20 CN CN2009202904950U patent/CN201583657U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI477751B (en) * | 2011-12-21 | 2015-03-21 | Taidoc Technology Corp | Temperature sensing device and method thereof |
| CN104199036A (en) * | 2014-09-26 | 2014-12-10 | 上海未来伙伴机器人有限公司 | Distance measuring device and robot system |
| CN106679745A (en) * | 2016-11-25 | 2017-05-17 | 广州周立功单片机科技有限公司 | Temperature compensation method and system and water flow detection method and system for ultrasonic water meter |
| CN109001738A (en) * | 2018-06-11 | 2018-12-14 | 燕山大学 | A kind of the High Precision Underwater distance-measuring equipment and distance measuring method isolated based on transmitting-receiving |
| CN110865377A (en) * | 2019-11-14 | 2020-03-06 | 四川千行你我科技股份有限公司 | Real-time displacement monitoring and early warning system and method for railway contact network |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103913208B (en) | External ultrasonic liquidometer and its measuring method with velocity of sound self-calibration function | |
| CN107917768B (en) | A low-frequency sound wave-based air temperature measurement device and method | |
| CN201583657U (en) | Ultrasonic ranging device with temperature and humidity compensation | |
| CN103278561B (en) | Universal ultrasonic liquid concentration detection apparatus | |
| CN114001804B (en) | Calibration method and system of ultrasonic metering device based on time difference method | |
| CN203376035U (en) | Device for detecting fundamental errors of industrial membrane type gas meter | |
| CN102478585A (en) | Ultrasonic anemorumbometer and corresponding multi-meteorological-parameter measuring instrument | |
| CN113237516A (en) | Intelligent ultrasonic measuring system and measuring method | |
| CN106643979A (en) | Automatic compensation method and device for guided wave radar level meter measured value | |
| CN109084864B (en) | Slender straight pipe type ultrasonic liquid level measuring device and measuring method | |
| CN202066962U (en) | Multifunctional ultrasonic wave measuring instrument | |
| CN109405887A (en) | A kind of surface acoustic wave sensor and detection method measuring torque and temperature | |
| CN103926018B (en) | A kind of temperature of liquid measurement apparatus and method | |
| CN102980941B (en) | A kind of ultrasonic gas relative humidity detection method and device utilizing sonic velocity change | |
| CN101008674A (en) | Device for testing axial displacement of hydroelectric generating set and working method therefor | |
| CN203117440U (en) | Meteorological collection device | |
| CN104266721A (en) | Integrated ultrasonic liquid level gauge | |
| CN110515082A (en) | An ultrasonic-based automatic ranging system | |
| CN202141441U (en) | Automatic snow depth measurement device based on ultrasonic sensor | |
| CN203688038U (en) | Distributed wireless ultrasonic liquid level measurement instrument | |
| CN103336052A (en) | Indoor relative humidity on-line monitoring system and humidity calculation method | |
| CN201945603U (en) | Ultrasonic aerovane | |
| CN201926903U (en) | Online analyzer for liquid density and content | |
| CN2916585Y (en) | Digital laminar flow meter | |
| CN201159731Y (en) | External ultrasonic wave concentration analyzer |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100915 Termination date: 20111220 |