| 摘要 |
<P>PROBLEM TO BE SOLVED: To improve the measurement accuracy of a flow rate more than the past case, by straightening the gas flow flowing into a measurement pipe from a flow channel member to some extent. <P>SOLUTION: This gas meter 10 is provided with straightening plates 36, 38 arranged in the vicinity of an inflow port 12 of the measurement pipe 40 to block the gas flow channel formed by the flow channel member 22 and guide and straighten the gas flowing in the flow channel member 22 to channel holes 36b, 38b formed at predetermined locations. Since the channel hole 36b is formed at the predetermined location of the straightening plate 36, the gas flowing in the flow channel member 22 is guided and straightened. According to such a straightening, the gas can easily flow toward the inflow port of the measurement pipe 40 from the channel hole 36b. In other words, collision to the measurement pipe 40 is restrained when the gas flows into the measurement pipe 40 from the flow channel member 22. Accordingly, since the flow of the gas, flowing into the measurement pipe 40 from the flow channel member 22, can be straightened, to some extent, and as a result, the measurement accuracy of the flow rate can be improved better than the past case. <P>COPYRIGHT: (C)2009,JPO&INPIT |
