PROBLEM TO BE SOLVED: To provide a measuring method for a propagation speed of ultrasonic waves in an inner ring of a cylindrical roller bearing, in which it is not required to replace a transmitting sensor and a receiving sensor even when a diameter of the inner ring is changed and which...
The propagation speed of ultrasonic waves in rock was measured using oscilloscope and speed device.Effects of composition,porosity,soakage and other characteristics of rock on the ultrasonic propagation were analyzed.Results showed that the propagation speed was mainly determined by the porosity.Meanwhile...
The theory for the diffraction of light by plane ultrasonic waves of various standing wave ratios is derived. The liquid medium disturbed by the ultrasound... Cook,D B. - 《Journal of the Acoustical Society of America》 被引量: 35发表: 1961年 Experiment Study on Friction Reduction of Ultras...
The ultrasonic wind speed and direction sensor uses the propagation speed of ultrasonic waves in the air to be affected by the air flow to measure wind speed. Compared with conventional anemometers, the biggest feature of this measurement method is that the entire wind measurement system does not...
百度试题 结果1 题目8. He has m easured the speed at which ultrasonic waves travel along the bone. 相关知识点: 试题来源: 解析 答案见上 反馈 收藏
关键词: materials science cadmium compressibility specific heat thermal expansion ultrasonic waves cadmium alloys lead lead alloys tin 被引量: 4 年份: 1975 收藏 引用 批量引用 报错 分享 全部来源 求助全文 ResearchGate osti.gov 相似文献 引证文献Sound speed and thermophysical properties of liquid iron ...
In designing an anemometer, it is important to note that, as depicted in the schematic, we require a reflective surface. This surface serves to extend the trajectory of the ultrasonic waves, thereby facilitating the development of algorithms for wind speed calculation. Of course, some designs opt...
A method is considered for determining the distance between two wedges and the speed of longitudinal ultrasonic waves in a test object when measuring the profile of the surface of pipelines under the bead of a weld. The method makes it possible to reduce the error in determining the profile of...
百度试题 结果1 题目 4. He neasured e e measurement)th e speed at which ultrasonic waves travel along th e bone. 相关知识点: 试题来源: 解析 答案见上 反馈 收藏
Shaping of Rock Specimens For Testing of Uniaxial Tensile Strength By High Speed Abrasive Water Jet: First Experience A pulsed jet was generated by modulating a continuous stream of water with ultrasonic waves. A velocity transformer connected to a transducer was located axially inside a nozzle to ...