用自行設(shè)計的流量計實驗臺, 對50 mm 口徑旋渦進動流量計上不同的壓電式壓力傳感器安裝方式進行了試驗L 結(jié)果表明, 傳感器安裝對測量結(jié)果有顯著影響L 并給出了較佳的傳感器安裝方式和傳感器的設(shè)計準(zhǔn)則L
關(guān)鍵詞: 旋渦進動流量計; 壓電傳感器; 流體振動; 安裝方式; 設(shè)計原則
Abstract: A <50 mm p ro to type sw irlm eter is developed fo r the experience in st rum en t designed. Experim en t s w ere perfo rm ed to study set t ing m ethod of sen so r inf luence on m easu re of sw irlm e2 ter. Two ax isymm et rical set t ing p iezoelect ric p ress sen so rs ob tained the velocity p ressu re signals of vo rtex p recession in sw irlm eter. M ajo r f indings in experience are described as fo llow s. F irst, the set t ing m ethod of p iezoelect ric p ressu re sen so r inf luence on sw irlm eter m easu re is clear. Sec2 ond, the best set t ing of p iezoelect ric p ressu re sen so r in sw irlm eter and m ethod of design sen so r are advanced.
Key words: sw irlm eter; p iezoelect ric p ressu re sen so r; f lu id o scillat ion; set t ing m ethod; design p rincip le