{"title":"The digital measurement of low values of angular velocity and acceleration","authors":"G. Hancke, C. Viljoen","doi":"10.1109/IMTC.1990.65965","DOIUrl":null,"url":null,"abstract":"An algorithm and the microprocessor implementation thereof for the measurement of angular velocity and acceleration of rotating machinery are presented. The speed reference signal is derived from a pulse train at a frequency of only one pulse per revolution. This fact places severe constraints on the resolution and measuring time of the instrument. To detect a rate of change of speed of 1 r.p.m./min, a measuring time of at least 1 min is required. Over a 30-s measuring period it is possible to detect a rate of only 4 r.p.m./min. The resolution, therefore, is dependent on the measuring time, and a fixed relationship exists between these two parameters. The values obtained for either velocity or acceleration/deceleration will be average values for the measuring period. The instrument has been implemented using standard microprocessor components and supporting circuitry. The results obtained so far are highly satisfactory.<<ETX>>","PeriodicalId":404761,"journal":{"name":"7th IEEE Conference on Instrumentation and Measurement Technology","volume":"23 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"1990-02-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"7th IEEE Conference on Instrumentation and Measurement Technology","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/IMTC.1990.65965","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 0
Abstract
An algorithm and the microprocessor implementation thereof for the measurement of angular velocity and acceleration of rotating machinery are presented. The speed reference signal is derived from a pulse train at a frequency of only one pulse per revolution. This fact places severe constraints on the resolution and measuring time of the instrument. To detect a rate of change of speed of 1 r.p.m./min, a measuring time of at least 1 min is required. Over a 30-s measuring period it is possible to detect a rate of only 4 r.p.m./min. The resolution, therefore, is dependent on the measuring time, and a fixed relationship exists between these two parameters. The values obtained for either velocity or acceleration/deceleration will be average values for the measuring period. The instrument has been implemented using standard microprocessor components and supporting circuitry. The results obtained so far are highly satisfactory.<>