Tamagawa Seiki Co., Ltd.

Nobuharu Hama

An actuator control system includes a controlling controller and one or more driving controllers connected to the controlling controller via a power line, wherein the controlling controller generates a serial signal that composites a power-supply voltage to be supplied to an actuator and a command signal generated in order to control driving of the actuator and transmits the generated serial signal to the driving controllers via the power line, and the driving controllers separate and retrieve the power-supply voltage and the control signal. Due to the configuration described above, the driving controllers supply a drive voltage and a drive control signal to actuators connected thereto. Accordingly, an actuator control system can be provided whose amount of installed wiring has been significantly reduced.

Actuator control system and actuator system

As shown in FIG., a position detector () includes: an object to be detected having a pattern () formed for generating a position signal; and a sensor () for detecting the position signal according to the pattern () by receiving an electromagnetic wave generated on the object () by light irradiation. The pattern () is formed in a gradation shape visibly or invisibly so that an electromagnetic wave having a wavelength continuously different depending on the position on the object () can be sent to the sensor (). This enables detection of an absolute angle of a rotary object and an absolute position on an XY plane with a simpler configuration, simplifies the device assembly, and reduces the device size.

Position detector and a detected element having a pattern for generating a position signal formed thereon

A metal surface coating treatment device and a surface coated metal manufacturing method capable of providing excellent uniformness of coating thickness, excellent balance of weight, excellent appearance, and excellent feeling at the time of operation and contact, and having a large freedom degree of design of the amount of coating and size of coated metal, the metal surface coating treatment device comprising a magnetic floating means () for floating a treated metal () in the air, an optical control means with partsA,B, andpreventing the floated treated metal () from being magnetically attracted to the magnetic floating means () in vertical direction, a storage tank () positioned vertically coaxially with the magnetic floating means () and storing liquid coating material () used for the coating treatment of the treated metal (), and a vertical moving means having a drive mechanism () for adhering the liquid coating material () to the treated metal () by immersing the treated metal () in the storage tank () by vertically moving the magnetic floating means (), raising the treated metal () from the storage tank (), and allowing to dry the liquid coating material () adhered to the surface of the treated metal.

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Hachinohe, Japan

Nobuharu Hama