Method and apparatus for measuring volume
专利汇可以提供Method and apparatus for measuring volume专利检索，专利查询，专利分析的服务。并且PURPOSE:To attain highly accurate measurement of volume extremely easily and quickly by injecting pressure gas into a sealed room the volume of which is to be measured at a fixed volume flow rate under its critical state through a sound speed nozzle of which flow rate factor has been already known. CONSTITUTION:A jig plate 4 covers an opening part of a recessed part 2 of a cylinder head to form a prescribed sealed room to be measured. The sound speed nozzle 5 and a pressure sensor 6 are fitted to the jig plate 4. At the time of measurement, the cyinder head 1 to be measured is placed on a prescribed prescribed position of the jig plate and pressed against the jig plate airtightly by a clamping device. Subsequently, a valve 7 is opened to guide the pressure gas and inject the pressure gas with the fixed volume flow rate into the recessed part 2 to be measured through the sound speed nozzle 5. Thus, the highly accurate measurement of the volume can be attained extremely easily and rapidly by detecting the pressure change in the sealed room which corresponds to the injection time.，下面是Method and apparatus for measuring volume专利的具体信息内容。
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