Positioner

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United States of America Patent

PATENT NO 9563208
APP PUB NO 20150261225A1
SERIAL NO

14641634

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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A positioner is provided with a control calculating portion 1 including first and second calculating portions. The first calculating portion, a valve opening detecting portion, and a first pressure sensor are contained in a first case. The second calculating portion, an electropneumatic converting portion, a pneumatic circuit portion, and a second pressure sensor are contained in a second case. The first case is assembled together with the valve, and the second case is located in a position away from the valve. Output signals from the first calculating portion, which are a control signal MV (a PWM signal) and a detected pressure signal S1′ (wherein a detected pressure signal S1 has been converted into a digital signal, are sent to the second calculating portion through cables 16.

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Patent Owner(s)

Patent OwnerAddress
AZBIL CORPORATION2-7-3 MARUNOUCHI CHIYODA-KU TOKYO 100-6419

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Inagaki, Yousuke Tokyo, JP 2 1
Murata, Kouichirou Tokyo, JP 5 10

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