Title:
CHARACTERISTIC ADJUSTING MEANS FOR PHYSICAL QUANTITY DETECTING DEVICE AND HEATING RESISTOR TYPE AIR FLOWMETER
Document Type and Number:
Japanese Patent JP3323745
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a physical quantity detecting device which can detect the physical quantity of an object with high accuracy by providing a terminal for adjusting output characteristic of the detecting device or terminal for adjusting controlled variable of a detecting element on the outside of a housing incorporating an electronic circuit.
SOLUTION: An electronic circuit 4 is stuck and fixed to a metallic base 6 and surrounded by a housing 5. The housing 5 is plastic parts on which connector terminals 2, adjusting terminals 1, and detecting element terminals 9 are insert-molded and a connector housing 3, a fixing flange 10, etc., are integrally formed with the housing 5. Therefore, the electronic circuit 4 is incorporated in a box-like body having a bottom face composed of the metallic base 6 and side walls composed of the housing 5 and terminals 1 are electrically connected to the terminals 2 when the inside of the housing 5 is connected to the circuit 4 through metallic wires 8. When electric signals are impressed upon the terminals 1 in the connector housing 3 after the construction of a physical quantity detecting device is completed, the characteristics of the device can be adjusted in the final process.
Inventors:
Shinya Igarashi
Kaoru Uchiyama
Hitoshi Ishikawa
Kaoru Uchiyama
Hitoshi Ishikawa
Application Number:
JP19597396A
Publication Date:
September 09, 2002
Filing Date:
July 25, 1996
Export Citation:
Assignee:
株式会社日立製作所
株式会社日立カーエンジニアリング
株式会社日立カーエンジニアリング
International Classes:
G01F1/68; F02D41/18; F02D41/24; F02M35/04; G01D3/02; G01D18/00; G01F1/684; G01F1/696; G01F1/699; (IPC1-7): G01D3/02; G01D18/00; G01F1/68
Domestic Patent References:
| JP5312613A |
Attorney, Agent or Firm:
Yasuo Sakuta