{"title":"用于测量随时间和随空间的流速的超声多普勒装置","authors":"C. Cachard, G. Giménez, D. Vray","doi":"10.1109/ULTSYM.1988.49506","DOIUrl":null,"url":null,"abstract":"An effort is made to determine, at each instant, the direction and the magnitude of the velocity of a flow-carried target, provided this target moves within the field monitored by the measuring device. Four transducers (one transmitter and three receivers) are used because the Doppler phenomenon is three-dimensional in the present case. The interaction between the incident ultrasonic wave and the scattering target is modeled by means of a complex envelope. Targets in the form of bubbles injected in the flow are tracked experimentally for a duration of 1 s as they move along a three-dimensional trajectory. This trajectory is reconstructed from velocity results. The proposed 3-D ultrasonic Doppler velocimeter measures the velocity vector and allows reconstruction of the trajectory for targets of 10- mu m minimum size, included in a measurement field of some cubic centimeters, with maximum velocity of some meters per second.<<ETX>>","PeriodicalId":263198,"journal":{"name":"IEEE 1988 Ultrasonics Symposium Proceedings.","volume":"90 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"1988-10-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"4","resultStr":"{\"title\":\"Ultrasonic Doppler device for measurement of time-dependent and space-dependent flow speed\",\"authors\":\"C. Cachard, G. Giménez, D. Vray\",\"doi\":\"10.1109/ULTSYM.1988.49506\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"An effort is made to determine, at each instant, the direction and the magnitude of the velocity of a flow-carried target, provided this target moves within the field monitored by the measuring device. Four transducers (one transmitter and three receivers) are used because the Doppler phenomenon is three-dimensional in the present case. The interaction between the incident ultrasonic wave and the scattering target is modeled by means of a complex envelope. Targets in the form of bubbles injected in the flow are tracked experimentally for a duration of 1 s as they move along a three-dimensional trajectory. This trajectory is reconstructed from velocity results. The proposed 3-D ultrasonic Doppler velocimeter measures the velocity vector and allows reconstruction of the trajectory for targets of 10- mu m minimum size, included in a measurement field of some cubic centimeters, with maximum velocity of some meters per second.<<ETX>>\",\"PeriodicalId\":263198,\"journal\":{\"name\":\"IEEE 1988 Ultrasonics Symposium Proceedings.\",\"volume\":\"90 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"1988-10-02\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"4\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"IEEE 1988 Ultrasonics Symposium Proceedings.\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/ULTSYM.1988.49506\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"IEEE 1988 Ultrasonics Symposium Proceedings.","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/ULTSYM.1988.49506","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Ultrasonic Doppler device for measurement of time-dependent and space-dependent flow speed
An effort is made to determine, at each instant, the direction and the magnitude of the velocity of a flow-carried target, provided this target moves within the field monitored by the measuring device. Four transducers (one transmitter and three receivers) are used because the Doppler phenomenon is three-dimensional in the present case. The interaction between the incident ultrasonic wave and the scattering target is modeled by means of a complex envelope. Targets in the form of bubbles injected in the flow are tracked experimentally for a duration of 1 s as they move along a three-dimensional trajectory. This trajectory is reconstructed from velocity results. The proposed 3-D ultrasonic Doppler velocimeter measures the velocity vector and allows reconstruction of the trajectory for targets of 10- mu m minimum size, included in a measurement field of some cubic centimeters, with maximum velocity of some meters per second.<>
求助内容：
应助结果提醒方式：
京公网安备 11010802042870号
