CN109612541B - 一种气体超声波流量计的防错波信号处理电路 - Google Patents
一种气体超声波流量计的防错波信号处理电路 Download PDFInfo
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- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F1/00—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
- G01F1/66—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by measuring frequency, phase shift or propagation time of electromagnetic or other waves, e.g. using ultrasonic flowmeters
- G01F1/667—Arrangements of transducers for ultrasonic flowmeters; Circuits for operating ultrasonic flowmeters
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CN110146135A (zh) * | 2019-04-16 | 2019-08-20 | 艾特仪表科技(深圳)有限公司 | 一种超声波水表流量测量电路及测量方法 |
CN111256786B (zh) * | 2020-02-03 | 2021-07-06 | 天津大学 | 一种判断气体超声流量计双阈值触发错波的方法 |
CN112254870B (zh) * | 2020-09-30 | 2022-07-05 | 武汉德塞仪器仪表科技有限公司 | 一种高精度气体微压差表 |
Citations (4)
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CN101769782A (zh) * | 2010-01-29 | 2010-07-07 | 中国农业科学院农田灌溉研究所 | 检测超声波渡越时间的方法及其装置 |
CN103389153A (zh) * | 2013-08-02 | 2013-11-13 | 浙江理工大学 | 一种利用二次反射波测量超声波渡越时间的电路 |
CN105300508A (zh) * | 2015-10-30 | 2016-02-03 | 北京控制工程研究所 | 一种超声波信号传播时间的双阈值检测电路及检测方法 |
CN107490409A (zh) * | 2017-08-09 | 2017-12-19 | 辽宁航宇星物联仪表科技有限公司 | 一种户用超声波水表防错波改进方法 |
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JP2013255544A (ja) * | 2012-06-11 | 2013-12-26 | Panasonic Corp | 超音波診断装置 |
CN104880227B (zh) * | 2015-06-12 | 2018-04-27 | 天津大学 | 一种噪声背景下超声流量测量方法 |
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Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
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CN101769782A (zh) * | 2010-01-29 | 2010-07-07 | 中国农业科学院农田灌溉研究所 | 检测超声波渡越时间的方法及其装置 |
CN103389153A (zh) * | 2013-08-02 | 2013-11-13 | 浙江理工大学 | 一种利用二次反射波测量超声波渡越时间的电路 |
CN105300508A (zh) * | 2015-10-30 | 2016-02-03 | 北京控制工程研究所 | 一种超声波信号传播时间的双阈值检测电路及检测方法 |
CN107490409A (zh) * | 2017-08-09 | 2017-12-19 | 辽宁航宇星物联仪表科技有限公司 | 一种户用超声波水表防错波改进方法 |
Non-Patent Citations (2)
Title |
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刘泽忠 等.超声波流量计自适应双门限触发法研究.《化工自动化及仪表》.2015,第42卷(第3期),第282-286页. * |
闵闿.基于双阈值电平比较法的时差法超声波流量计信号处理研究.《中国优秀硕士学位论文全文数据库 工程科技Ⅱ辑》.2014,(第08期),第C030-122页. * |
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