| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 161 | Multiple motion mechanical integrator | US73020758 | 1958-04-22 | US2956439A | 1960-10-18 | PERRINE WARREN L |
| 162 | Combination regulator and meter index ring mounting | US44858554 | 1954-08-09 | US2844962A | 1958-07-29 | RESKO PAUL V; FAIRCHILD WHITWORTH |
| 163 | Combination meter top and regulator | US45049754 | 1954-08-17 | US2836065A | 1958-05-27 | STEWART CHARLES W |
| 164 | Combined meter and regulator | US39506553 | 1953-11-30 | US2784590A | 1957-03-12 | STEWART CHARLES W |
| 165 | Tip for small bases | US21002438 | 1938-05-25 | US2206615A | 1940-07-02 | CARL PFANSTIEHL; DEVEREUX ANDREW R |
| 166 | Temperature compensation for gas meters | US15922337 | 1937-08-16 | US2183710A | 1939-12-19 | DEMING GEORGE M |
| 167 | Combination pressure regulator and meter | US4706835 | 1935-10-28 | US2115259A | 1938-04-26 | GOLDKAMP OTTO B |
| 168 | Pressure compensating gas meter | US55487931 | 1931-08-03 | US2093151A | 1937-09-14 | MACLEAN ALLEN D |
| 169 | Compensating drive | US33774129 | 1929-02-06 | US1931493A | 1933-10-24 | ALFRED HERZ |
| 170 | Fluid meter | US14997426 | 1926-11-22 | US1797233A | 1931-03-24 | HUEBOTTER HARRY A |
| 171 | Gas-metering system | US3681925 | 1925-06-13 | US1759384A | 1930-05-20 | WILKIN JOHN T; HOUGHTON CARL R |
| 172 | Pressure-controlled flow-directing means for compound meters | US24773518 | 1918-08-01 | US1386177A | 1921-08-02 | JETTE AUGUST G; AXEL JOHNSON |
| 173 | Method and means for indicating the maximum flow of fluids. | US16660017 | 1917-05-05 | US1289486A | 1918-12-31 | LITTLE ARLINGTON P |
| 174 | Volumetric air-meter. | US1913780169 | 1913-07-21 | US1150866A | 1915-08-24 | KREUTZBERG OTTO A |
| 175 | Gas-pressure regulator. | US1908459555 | 1908-10-26 | US916943A | 1909-03-30 | DOANE ROY A |
| 176 | Meter-regulator. | US1907379162 | 1907-06-15 | US888952A | 1908-05-26 | WYLIE THOMAS B |
| 177 | Steam-meter and reducing-valve | US243025D | US243025A | 1881-06-14 | ||
| 178 | Meter | US241217D | US241217A | 1881-05-10 | ||
| 179 | AIRFLOW MEASURING DEVICE | US15964801 | 2018-04-27 | US20180245961A1 | 2018-08-30 | Shinichi KAMIYA |
| A housing defines a bypass passage and a sub-bypass passage therein. A bypass passage is configured to draw a part of an air flowing through a duct. The sub-bypass passage branches off the bypass passage and is configured to draw a part of air flowing through the bypass passage. A flow rate sensor is arranged in the sub-bypass passage and configured to generate an electric signal according to a flow rate of air in the duct by performing heat transfer with air passing through the sub-bypass passage. A physical quantity sensor is configured to measure a physical quantity of air in the duct. A sensor assembly is integrally formed with the flow rate sensor, the physical quantity sensor, and a circuit module. The circuit module includes a substrate that is configured to process signals from the flow rate sensor and the physical quantity sensor. | ||||||
| 180 | METHOD FOR ASCERTAINING A PHYSICAL PARAMETER OF A GAS | US15749888 | 2016-07-26 | US20180231411A1 | 2018-08-16 | Hao Zhu; Alfred Rieder; Gerhard Eckert |
| The invention relates to a method for ascertaining a physical parameter of a gas using a measuring transducer having a measuring tube for conveying the gas, wherein the measuring tube is excitable to execute bending oscillations of different modes and eigenfrequencies, the method includes: ascertaining the eigenfrequency of the f1-mode and f3-mode; ascertaining preliminary density values for the gas based on the eigenfrequencies of the f1-mode and f3-mode; ascertaining a value for the velocity of sound of the gas, and/or, dependent on the velocity of sound and the eigenfrequency of a mode, at least one correcting term and/or density error for the preliminary density value; and/or a correcting term for a preliminary mass flow value for determining a corrected mass flow measured value based on the first preliminary density value, the second preliminary density value, the eigenfrequencies of the f1-mode and f3-mode. | ||||||
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