MEASURED VALUE OUTPUT DEVICE, MEASURED VALUE MONITOR, CURRENT VALUE OUTPUT DEVICE, AND CURRENT MONITOR

Title:

MEASURED VALUE OUTPUT DEVICE, MEASURED VALUE MONITOR, CURRENT VALUE OUTPUT DEVICE, AND CURRENT MONITOR

Document Type and Number:

WIPO Patent Application WO/2003/065059

Kind Code:

A1

Abstract:

A current value output device comprises a measuring means such as a current measuring means (11) for measuring the alternating current flowing through the power source line (2) of a motor (1), a sensing circuit (12) for amplifying a measured value such as a measured current value to determine the magnitude of the measured value, a signal conversion section (13) for converting the determined value into a time interval (duration), and an ON/OFF signal output section (14) for sequentially outputting ON/Off signals maintaining an ON state or OFF state for the time interval at every predetermined time, so that the measured value of a motor current in a production line used for monitoring the measured value at every predetermined time is outputted at every predetermined time, as a pulse signal (digital signal) having a pulse width corresponding to the magnitude of the measured value.

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Inventors:

KOKUBU TAKAO (JP)
UTIDA NORIMITI (JP)

Application Number:

PCT/JP2003/000770

Publication Date:

August 07, 2003

Filing Date:

January 28, 2003

Export Citation:

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Assignee:

BRIDGESTONE CORP (JP)
KOKUBU TAKAO (JP)
UTIDA NORIMITI (JP)

International Classes:

G01R19/25; G01R19/00; (IPC1-7): G01R19/25

Foreign References:

JPS57140421U	1982-09-02
EP1132744A2	2001-09-12
JPH01212368A	1989-08-25

Other References: