Title:
AIR FLOWMETER
Document Type and Number:
Japanese Patent JPH03252528
Kind Code:
A
Abstract:
PURPOSE:To improve the radio interference noise proof by providing at least one inductance to a conductive member which connects the driving circuit of the flowmeter to a terminal for external connection provided to a housing part. CONSTITUTION:The external connection terminal 13 which is connected to an external harness is connected electrically to the driving circuit 10 and a member 6 for external connection which is formed of a conductive member, and the member 6 is further connected to a shield base 12 through a through capacitor 14. The member 6 which connects the driving circuit 10 and terminal 13 is so structured as to have one through capacitor 14. Then the member 6 is wound to form an inductance 15 and the through capacitor 14 is soldered to a shield base 12. The inductance 15 which is formed of the member 6 may be provided on the side of the terminal 100 of the through capacitor 14. The through capacitor 14 and inductance 15 formed of the member 6 improve the attenuation characteristics of radio noise.
Inventors:
SUGIURA MASATOSHI
ISHIKAWA HITOSHI
ISHIKAWA HITOSHI
Application Number:
JP4939590A
Publication Date:
November 11, 1991
Filing Date:
March 02, 1990
Export Citation:
Assignee:
HITACHI LTD
HITACHI AUTOMOTIVE ENG
HITACHI AUTOMOTIVE ENG
International Classes:
G01F1/68; G01F1/684; (IPC1-7): G01F1/68
Attorney, Agent or Firm:
Katsuo Ogawa (2 outside)
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