Title:
ロッド行程の測定及び前記ロッドに発揮される力の測定の両方を統合するセンサモジュール
Document Type and Number:
Japanese Patent JP2005508024
Kind Code:
A
Abstract:
A sensor module including a processing unit, a stroke sensor and a force sensor (3) for obtaining data relating to both a force exerted on an axially-moving rod (1) and the travel of the rod through a determination of the position of the piston (2) with respect to the rod (1). The sensor module is characterized by a first stationary electrical coil (5) that is arranged about the piston (2) and the rod (1) and a second moving electrical coil (6) that is disposed about the rod (1) and connected to the force sensor (3). The first (5) and second (6) coils are coaxial and as a result induced oscillatory voltage within the stationary coil (5) generates an eddy current within the piston (2) that permit a measurement of the stroke of the piston (2) by means of eddy-current signal received by the stroke sensor using the piston (2) as a test body, and supplying the force sensor with electrical power through the second moving electrical coil (6). The first stationary electrical coil (5) is further used as a medium for the transmission of an electrical measurement signal (S) that is generated by the force sensor (3).
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Inventors:
Full card jean
Jean De Run Stefane
Pasquettery
Jean De Run Stefane
Pasquettery
Application Number:
JP2002527735A
Publication Date:
March 24, 2005
Filing Date:
September 06, 2001
Export Citation:
Assignee:
Robert Bosch GmbH
International Classes:
G01L5/22; B60G13/00; B60G15/06; B60G17/019; B60T7/02; B60T13/56; G01B7/00; G01D5/20; G01D21/02; G08C17/00; (IPC1-7): G08C17/00; B60T7/02; B60T13/56; G01B7/00; G01L5/22
Attorney, Agent or Firm:
Katsuzo Asakura