{"title":"温度为- 78°c时氦的声速。至200°c。压力高达70个大气压","authors":"W. Schneider, G. Thiessen","doi":"10.1139/CJR50A-041","DOIUrl":null,"url":null,"abstract":"The velocity of sound in pure helium gas has been measured as a function of pressure at −78°, 0°, 50°, 100°, and 200 °C., using an ultrasonic interferometer of the double crystal type. From the sound velocity data second viral coefficients were obtained, and the ratio of specific heats was derived as a function of pressure.","PeriodicalId":9392,"journal":{"name":"Canadian journal of research","volume":"37 1","pages":"509-519"},"PeriodicalIF":0.0000,"publicationDate":"1950-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"4","resultStr":"{\"title\":\"THE VELOCITY OF SOUND IN HELIUM AT TEMPERATURES −78 °C. TO 200 °C. AND PRESSURES UP TO 70 ATMOSPHERES\",\"authors\":\"W. Schneider, G. Thiessen\",\"doi\":\"10.1139/CJR50A-041\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"The velocity of sound in pure helium gas has been measured as a function of pressure at −78°, 0°, 50°, 100°, and 200 °C., using an ultrasonic interferometer of the double crystal type. From the sound velocity data second viral coefficients were obtained, and the ratio of specific heats was derived as a function of pressure.\",\"PeriodicalId\":9392,\"journal\":{\"name\":\"Canadian journal of research\",\"volume\":\"37 1\",\"pages\":\"509-519\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"1950-09-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"4\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Canadian journal of research\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1139/CJR50A-041\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Canadian journal of research","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1139/CJR50A-041","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
THE VELOCITY OF SOUND IN HELIUM AT TEMPERATURES −78 °C. TO 200 °C. AND PRESSURES UP TO 70 ATMOSPHERES
The velocity of sound in pure helium gas has been measured as a function of pressure at −78°, 0°, 50°, 100°, and 200 °C., using an ultrasonic interferometer of the double crystal type. From the sound velocity data second viral coefficients were obtained, and the ratio of specific heats was derived as a function of pressure.