JPH01144822U

JPH01144822U -

Info

Publication number: JPH01144822U
Application number: JP4213388U
Authority: JP
Priority date: 1988-03-30
Filing date: 1988-03-30
Publication date: 1989-10-04
Anticipated expiration: 2003-03-30
Also published as: JPH069320Y2

Description

[Brief explanation of the drawing]

第１図は、本考案の電磁流量計のアースリング
の概要を示すもので、ａ図は第１円環板、ｂ図は
ａ図のＸ―Ｘ矢視断面図、ｃ図は第２円環板、ｄ
図はｃ図のＹ―Ｙ矢視断面図、ｅ図は複合一体化
した時の断面である。第２図は従来技術を示すも
ので、ａ図はアースリングの取付例、ｂ，ｃ図お
よびｄ，ｅ図は従来のアースリングの例を示す。１……測定管、２……ライニング、４……電極
、５……アースリング、７……流管、２１……第
１円環板、３１……第２円環板、２２……導電樹
脂環、２３，２４，２８，２９……分岐導板、３
２……外部導電樹脂環、３３，３４……端子板。 Figure 1 shows an outline of the grounding ring of the electromagnetic flowmeter of the present invention, where figure a is the first ring plate, figure b is a sectional view taken along the line X--X in figure a, and figure c is the second ring plate. ring plate, d
The figure is a cross-sectional view taken along YY arrows in figure c, and figure e is a cross-section when the parts are integrated into a composite structure. FIG. 2 shows the prior art, in which figure a shows an example of how a grounding ring is attached, and figures b, c, d and e show examples of conventional grounding rings. DESCRIPTION OF SYMBOLS 1... Measuring tube, 2... Lining, 4... Electrode, 5... Earth ring, 7... Flow tube, 21... First circular plate, 31... Second circular plate, 22... Conductive Resin ring, 23, 24, 28, 29... Branch conductive plate, 3
2... External conductive resin ring, 33, 34... Terminal board.

Claims

[Scope of utility model registration request]

A non-magnetic measurement tube with an insulated inner surface that is held in a flow tube through which fluid flows via an earth ring, a pair of electrodes arranged oppositely on the diameter of the measurement tube, and a measurement tube shaft and an electrode. and magnetic field generating means for applying a magnetic field in a direction perpendicular to the line connecting the electrodes, and the electromagnetic flowmeter calculates the flow rate from the flow rate signal output between the pair of electrodes with the potential of the earth ring as a reference. The ground ring is made of a pair of annular plates of the same diameter made of a resin insulating material as a substrate, and the substrate has a conductive inner surface and a radial recess from the inner circumference to the outer circumference. A first annular plate made flat by embedding a resin mixed with noble metal powder, a conductive noble metal powder mixed resin in the outer periphery recess on the inner surface, and a metal plate that is electrically conductive with the conductive noble metal powder mixed resin and extends outside the outer periphery. An electromagnetic device characterized in that a second annular plate is buried and made flat, the inner surface of the first annular plate and the inner surface of the second annular plate are closely integrated, and the metal plate is used as a ground terminal. Flow meter grounding ring.