BURKERT8700型氣體流量計(jì)在大致可分傳播速度差法(包括：直接時(shí)差法、時(shí)差法、相位差法、頻差法)波束偏移法、多普勒法、空間濾波法及噪聲法等類型，如圖所示。其中以噪聲法原理及結(jié)構(gòu)簡單，便于測量和攜帶，價(jià)格便宜但準(zhǔn)確度較低，適于在流量測量準(zhǔn)確度要求不高的場合使用。由于直接時(shí)差法、時(shí)差法、頻差法和相位差法的基本原理都是通過測量超聲波脈沖順流和逆流傳報(bào)時(shí)速度之差來反映流體的流速的，BURKERT8700型氣體流量計(jì)故又統(tǒng)稱為傳播速度差法。其中頻差法和時(shí)差法克服了聲速隨流體溫度變化帶來的誤差，準(zhǔn)確度較高，所以被廣泛采用。按照換能器的配置方法不同，傳播速度差撥又分為：Z法(透過法)、V法(反射法)、X法(交叉法)等。波束偏移法是利用超聲波束在流體中的傳播方向隨流體流速變化而產(chǎn)生偏移來反映流體流速的，低流速時(shí)，靈敏度很低適用性不大．

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087029?0124-A-040-FF-PP-GM82-110/50-08?? *?JF01???????????????????????????????
087044?0211-B-000-FF-MS-0000-240/56-08?? *?JF01???????????????????????????????
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087078?0300-E-012-BB-MS-GM81-024/50-04??? ????????????????????????????????????
087079?0255-A-040-EF-VA-GM82-024/UC-CB?? *?CZ05+JF01??????????????????????????
087126?0340-C-080-BB-MS-GM82-024/DC-08?? *?JF01+LF02??????????????????????????
087137?0255-A-030-MQ-MS-GM82-230/50-10?? *?AA76+JF15+NA11?????????????????????
087200?0124-A-050-AA-PP-GM82-024/DC-05?? *?EA15+JF01+MJ04+PA33???
BURKERT8700型氣體流量計(jì)德國寶帝流量計(jì)????????????
087201?0124-A-050-FF-PP-GM82-024/DC-05?? *?EA15+IB13+JF01+MJ04+PA33???????????
087203?0290-A-320-FF-MS-GM87-230/50-16?? *?JF01+MT05??????????????????????????
087204?0290-A-320-AA-MS-GM87-024/50-16?? *?JF01+MT05??????????????????????????
087205?0211-B-060-AA-MS-GM82-110/56-08?? *?JF01???????????????????????????????
087222?0124-A-030-FF-PD-GM82-230/UC-CE?? *?CZ05+JC01+JW06?????????????????????
087247?0256-A-020-FF-MS-GM82-230/50-10?? *?AF12+JF01+NL02?????????????????????
087255?0331-C-020-FF-VA-FB02-024/DC-08?? *?JF01+LF03+NA01+NL01????????????????
087263?0330-A-040-FF-VA-GM82-024/DC-08?? *?AF02+JF01+LF03+MS20+NA01+NL01??????
087271?0142-A-200-AA-PV-KM26-012/50-05?? *?JF01???????????????????????????????
087285?0641-A-020-FF-MS-GM82-230/UC-07?? *?PD27???????????????????????????????
087287?0142-B-150-FF-PV-KM25-024/DC-05?? *?JF01???????????????????????????????
087293?0256-A-030-AA-MS-GM82-048/56-10?? *?AF12+CA34+KB01+MA03????????????????
087306?0330-A-030-FF-VA-GM82-042/50-08?? *?AF02+JF01+MS20?????????????????????
087315?0400-B-120-FF-MS-GM84-024/DC-08?? *?JF01+KR49+Z301+MA03????????????????
087316?0300-C-016-BB-MS-GM81-048/UC-04?? *?CZ01+DB03+HA10+NL06????????????????
087346?0742-A-020-EE-VA-GM82-230/UC-10?? *?PD31???????????????????????????????
087446?0331-D-015-BB-MS-FB02-230/50-05?? *?JF01???????????????????????????????
087466?0301-C-012-BB-PA-FK01-024/DC-04?? *?JC04+JW06??????????????????????????
087486?0256-A-060-BB-VA-GM82-024/50-10?? *?JF01???????????????????????????????
087517?0301-C-012-BB-MS-FK01-024/DC-02?? *?HA17???????????????????????????????
087535?0355-D-030-BF-MS-GM82-230/50-10?? *?JF01 ? ? ?

BURKERT8700型氣體流量計(jì)