JPH01140130U - - Google Patents

Description

【図面の簡単な説明】[Brief explanation of drawings]

第１図ａおよびｂは本考案に係る電磁流量計を
示す断面図、第２図は第１図のＡ矢視図、第３図
は第２図の―線断面図、第４図および第５図
は他の実施例を示す断面図、第６図は従来の電磁
流量計を示す断面図、第７図は出力シフトと上流
側直管長の関係を示す図、第８図は重み関数を説
明するための図である。 １２……測定管、１４，１５……凹溝、１４ａ
，１５ａ……偏平底面、１８，１９……コア板、
１８ａ，１９ａ……先端部、２０……コイルボビ
ン、２２，２３……電極。 1A and 1B are cross-sectional views showing the electromagnetic flowmeter according to the present invention, FIG. 2 is a view taken along arrow A in FIG. Figure 5 is a sectional view showing another embodiment, Figure 6 is a sectional view showing a conventional electromagnetic flowmeter, Figure 7 is a diagram showing the relationship between output shift and upstream straight pipe length, and Figure 8 is a diagram showing the weighting function. It is a figure for explaining. 12...Measuring tube, 14, 15...Concave groove, 14a
, 15a... flat bottom surface, 18, 19... core plate,
18a, 19a... Tip portion, 20... Coil bobbin, 22, 23... Electrode.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 軸線方向中央部の外周面に各々が互いに平行な
２つの偏平面をもつ測定管と、この測定管の径方
向に設けられ磁気回路の一部となるコイルボビン
と、このコイルボビンの両端面に設けられその先
端面が前記各偏平面に当接する２つのコア板と、
これら両コア板の当接面間に設けられかつ前記測
定管の管壁に取り付けられた少なくとも１つの電
極とを備え、この電極を前記コイルボビンの軸線
と管周方向に４５°の間隔を隔てた位置に位置付
けたことを特徴とする電磁流量計。 A measuring tube having two oblique planes parallel to each other on the outer peripheral surface of the central portion in the axial direction, a coil bobbin provided in the radial direction of the measuring tube and forming a part of the magnetic circuit, and a coil bobbin provided on both end surfaces of the coil bobbin. two core plates whose tip surfaces abut on each of the flat surfaces;
at least one electrode provided between the abutting surfaces of both core plates and attached to the wall of the measuring tube, the electrode being spaced apart from the axis of the coil bobbin by 45° in the circumferential direction of the tube. An electromagnetic flowmeter characterized by being positioned at a certain position.