Mitsubishi Heavy Industries Limited

Tadashi Murata

Takaharu Hiroe

Kenji Tsutsui

Junji Murase

Akihiro Maekawa

A signal processing apparatus includes a CPU which executes an input step of receiving an input of a measurement value of a target parameter at a first time, in which noise is superimposed on a true value of the target parameter, a calculation step of calculating a variation amount of the measurement value of the target parameter at the first time, based on a maximum likelihood estimate of the target parameter at a second time and calculating a maximum likelihood estimate of the variation amount, and an output step of outputting a value obtained by adding the maximum likelihood estimate of the variation amount to the maximum likelihood estimate of the target parameter at the second time, as a maximum likelihood estimate of the target parameter at the first time.

Signal processing apparatus, turbine system, signal processing method, and program

The invention relates to an electric injecting molder and an injection velocity and injection pressure controlling method for an electric injecting molder, and it is an object of the present invention to make it possible, in injection molding by an electric injection molder, to mold stable resin products having a minimized dispersion in the quality even if the operation environment varies. When an injection screw () disposed in an injection cylinder () is driven to move in forward and backward directions by an electric motor (A) to inject resin material () in the injection cylinder () into a metal mold () to fill the metal mold (), the electric motor (A) is first velocity-controlled to fill the resin material () into the metal mold (), and, after the filling, the electric motor (A) is pressure-controlled to replenish the resin material for shrinkage of the resin. Upon the velocity control, a velocity target value for the injection screw () is corrected in response to a force detection value so that the velocity target value for the injection screw () may decrease as the force detection value increases to perform velocity feedback control of the electric motor (A) so that a velocity detection value from velocity detection means may be equal to the velocity target value.

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Tokyo, Japan

Tadashi Murata