Transactions of The Ire Professional Group on Ultrasonic Engineering最新文献

Our First Three Years - A Message from the Chairman 我们的头三年——主席的贺词

Transactions of The Ire Professional Group on Ultrasonic Engineering Pub Date : 1956-08-01 DOI: 10.1109/T-PGUE.1956.29221

M. Fagen

引用次数: 0

Ultrasonic Machining of Tungsten Carbide 碳化钨的超声加工

Transactions of The Ire Professional Group on Ultrasonic Engineering Pub Date : 1954-11-01 DOI: 10.1121/1.1917797

D. Goetze

引用次数: 0

Chairman's Report 1953-1954 1953-1954年主席报告

Transactions of The Ire Professional Group on Ultrasonic Engineering Pub Date : 1954-11-01 DOI: 10.1109/TPGUE.1954.243527

A. L. Lane

引用次数: 0

An Ultrasonic Machine Tool 一种超声波机床

Transactions of The Ire Professional Group on Ultrasonic Engineering Pub Date : 1954-11-01 DOI: 10.1121/1.1917796

N. Clark

引用次数: 0

Bibliography on ultrasonic delay lines 超声波延迟线参考书目

Transactions of The Ire Professional Group on Ultrasonic Engineering Pub Date : 1954-11-01 DOI: 10.1109/TPGUE.1954.243528

M. Fagen

引用次数: 3

Mechanical Impedance Transformers in Relation to Ultrasonic Machining 与超声加工有关的机械阻抗变压器

Transactions of The Ire Professional Group on Ultrasonic Engineering Pub Date : 1954-09-01 DOI: 10.1121/1.1927946

L. Balamuth

引用次数: 7

Metal Cleaning and Its Improvement by the Use of Ultrasonics 金属的超声波清洗及其改进

Transactions of The Ire Professional Group on Ultrasonic Engineering Pub Date : 1954-06-01 DOI: 10.1109/TPGUE.1954.1538195

T. J. Kearney

引用次数: 0

A Non-Contact Micro-Displacement Meter 一种非接触式微位移计

Transactions of The Ire Professional Group on Ultrasonic Engineering Pub Date : 1954-06-01 DOI: 10.1109/TPGUE.1954.1538193

Harold M. Sharaf

引用次数: 0

The Acoustic Flowmeter Using Electroric Switching 采用电子开关的声学流量计

Transactions of The Ire Professional Group on Ultrasonic Engineering Pub Date : 1954-06-01 DOI: 10.1109/TPGUE.1954.1538197

H. Kalmus, A. L. Hedrich, D. Pardue

{"title":"The Acoustic Flowmeter Using Electroric Switching","authors":"H. Kalmus, A. L. Hedrich, D. Pardue","doi":"10.1109/TPGUE.1954.1538197","DOIUrl":"https://doi.org/10.1109/TPGUE.1954.1538197","url":null,"abstract":"The flowmeter described in this paper measures the velocity of a fluid by measuring the difference in times of transmission of an acoustic wave in the upstream and downstream directions. The acoustic wave is propagated in the fluid by pressing a barium titanate transducer against the outside wall of the tubing carrying the fluid. The wave is then picked up by a similar transducer acting as a receiver and mounted on the tubing a short distance away from the first transducer The reversal in direction of propagation is effected by interchanging the functions of the two transducers, i.e., making the transmitter the receiver and vice versa. The time measurement is made in terms of the phase difference between transmitted and received waves. The phase difference measured for propagation in one direction is compared with the phase difference measured for propagation in the reverse direction and the difference between these is an indication of the fluid velocity. This difference is measured with a synchronous rectifier. The transducer functions are switched rapidly enough so that, by means of electrical differencing of the two phase measurements, a continuous velocity indication is obtained. Two methods of switching the transducer functions and performing the synchronous rectification have been employed. The first method utilizes a mechanically driven switch and has been described previously.1 The second method uses an entirely electronic system to perform both functions. It is this electronic system that is described in this paper.","PeriodicalId":201999,"journal":{"name":"Transactions of The Ire Professional Group on Ultrasonic Engineering","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1954-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129216149","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 6

A Temperature-Controlled Ultrasonic Solid Acoustic Delay Line (Abstract) 温控超声固体声延迟线(摘要)

Transactions of The Ire Professional Group on Ultrasonic Engineering Pub Date : 1954-06-01 DOI: 10.1109/TPGUE.1954.1538196

E. S. Pennell

{"title":"A Temperature-Controlled Ultrasonic Solid Acoustic Delay Line (Abstract)","authors":"E. S. Pennell","doi":"10.1109/TPGUE.1954.1538196","DOIUrl":"https://doi.org/10.1109/TPGUE.1954.1538196","url":null,"abstract":"A temperature-controlled ultrasonic solid acoustic delay line designed for radar calibration purposes is described. It has a delay of 24.73 microseconds. ±0.1 microseconds over an ambient temperature range from -25° C to +60°C. It is designed for use at 60 megacycles and has a bandwidth of at least 8 megacycles and a loss not exceeding 60 db. when used with a 150 ohm termination, It gives at least five reflections with no greater than 74 db. loss. A compact form is accomplished by using a thermostatically controlled oven in the form of a plastic encasement around a hermetically sealed metal enclosed delay line. The delay element, of vitreous silica, is held at 50°C with a deviation of less than ±5°C therefrom over the ambient temperature range up to 55°C. Heater power consumption at 115 volts ac is approximately 20 watts during the heating cycle which constitutes about 25% of the time for a 25°C ambient. Life tests on oven units over approximately two years in the ambient range of 23°C to 28°C show variations in temperature at the delay element well within ±2°C. Details of the construction are discussed and performance data on the oven and delay line are shown.","PeriodicalId":201999,"journal":{"name":"Transactions of The Ire Professional Group on Ultrasonic Engineering","volume":"75 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1954-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127341497","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0