Title:
COMPOSITE SENSOR
Document Type and Number:
WIPO Patent Application WO/2014/119092
Kind Code:
A1
Abstract:
Provided is technology, for a composite sensor, to suppress a failure that occurred in a detection element from influencing another detecting unit in which no failure has occurred. A composite sensor comprises: a plurality of detecting units formed from signal detection circuits, which are contained in a plurality of detection elements, that are a C/V conversion circuit (321a, 321b), an amp circuit (322a, 322b), ADC (323a, 323b), diagnostic voltage output DAC (327a, 327b), a carrier signal generating DAC (328a, 328b), and a substrate voltage generation DAC (320a, 329b); a GND voltage input unit (332) and a current voltage input unit (331) shared among each of the plurality of detecting units; and an over-current switch circuit (101a, 101b) that is a failure detection circuit that is contained in each of the plurality of detecting units, detects failures in each detection element, and stops current supply to the detecting unit when a failure occurs.
Inventors:
MAEDA DAISUKE (JP)
OHSAKA ICHIROH (JP)
HAYASHI MASAHIDE (JP)
OHSAKA ICHIROH (JP)
HAYASHI MASAHIDE (JP)
Application Number:
PCT/JP2013/081204
Publication Date:
August 07, 2014
Filing Date:
November 19, 2013
Export Citation:
Assignee:
HITACHI AUTOMOTIVE SYSTEMS LTD (JP)
International Classes:
G01P21/00; G01C19/5726; G01C19/5755; G01P15/125; G01P15/18
Foreign References:
| JP2012093301A | 2012-05-17 | |||
| JPH08216900A | 1996-08-27 | |||
| JP2001124648A | 2001-05-11 | |||
| JP2011095104A | 2011-05-12 | |||
| JP2012168097A | 2012-09-06 |
Attorney, Agent or Firm:
TSUTSUI, YAMATO (JP)
Tsutsui Daiwa (JP)
Tsutsui Daiwa (JP)
Download PDF:
Previous Patent: TRANSPARENT CONDUCTIVE LAMINATE AND TOUCH PANEL
Next Patent: ELECTRIC RECIPROCATING CUTTING TOOL
Next Patent: ELECTRIC RECIPROCATING CUTTING TOOL