Title:
ACCELERATION DETECTION DEVICE AND BEARING DEVICE PROVIDED WITH SAME
Document Type and Number:
WIPO Patent Application WO/2019/189191
Kind Code:
A1
Abstract:
This acceleration detection device (1) is provided with: a first acceleration sensor (SA); and a second acceleration sensor (SB) having a different band of measurement frequency and a different detection range of acceleration from the first acceleration sensor (SA). The first acceleration sensor (SA) and the second acceleration sensor (SB) are arranged such that the forward directions of acceleration detection shafts thereof are opposed to each other. Favorably, the acceleration detection device (1) is further provided with a level adjustment unit (20) which receives the output of at least one among the first acceleration sensor (SA) and the second acceleration sensor (SB) and evenly adjusts the levels of the output signals of the first acceleration sensor (SA) and the second acceleration sensor (SB). Through such configuration, it is possible to provide an acceleration detection device which is suitable for use in an environment with much disturbance noise, accurately detects an acceleration signal, and has much higher redundancy.
Inventors:
SUZUKI KATSUYOSHI (JP)
Application Number:
PCT/JP2019/012879
Publication Date:
October 03, 2019
Filing Date:
March 26, 2019
Export Citation:
Assignee:
NTN TOYO BEARING CO LTD (JP)
International Classes:
G01P21/00; G01P15/00
Foreign References:
| JPH1048239A | 1998-02-20 | |||
| JP2015108595A | 2015-06-11 | |||
| US20140088906A1 | 2014-03-27 | |||
| JP2008247145A | 2008-10-16 | |||
| US20060250257A1 | 2006-11-09 | |||
| JPH11157415A | 1999-06-15 | |||
| JPH04184263A | 1992-07-01 |
Attorney, Agent or Firm:
FUKAMI PATENT OFFICE, P.C. (JP)
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