公开(公告)号：JPH01239411A

公开(公告)日：1989-09-25

申请号：JP1739389

申请日：1989-01-26

Applicant: MARELLI AUTRONICA

Inventor： SHIRUBUANO DONACHI ,  ROBERUTO DEIRUAKUA ,  JIYOBUAANI BURUNETSUCHI ,  GIUZETSUPE DEIRORUTO

IPC: G01C9/18 ,  G01C9/06 ,  G01C9/20

Abstract: PURPOSE: To measure a steep inclination of 60 deg. or more accurately by encapsulating a conductive liquid between two supporting plates through an annular spacer and forming a specific electrode of circular segment on the supporting plate. CONSTITUTION: A closed chamber 6 is formed by ceramic supporting plate elements 1, 2 and an annular spacer 3 and encapsulating a conductive liquid 11 in the chamber 6. A pair of semicircular auxiliary electrodes 4, 5 of circular segment are formed on one of the supporting plate elements 1, 2 while a main electrode 7 is formed on the other element and they are connected through a conductive connecting part 10 to a predetermined monitor circuit. When the sensor inclines in one direction, the electric resistance increases between one auxiliary electrode and the main electrode but decreases between the other auxiliary electrode and the main electrode and thereby the inclination angle can be measured. This sensor can measure and monitor a steep inclination angle of ±60 deg. or more with a measurement error of ±2 deg..