Resources Contact Us Home
Servo-controlled feed rate control device for CNC electric spark machines

Image Number 5 for United States Patent #5310983.

A feed rate control device for controlling the feeding operation of the electrode of a computerized numerical control type electric spark machine is equipped with an amplitude limiter, a regulator, and a proportional-plus-integral compensator. The amplitude limiter is capable of automatically limiting the amplitude of the input signal according to the moving situation of the electrode of the electric spark machine. By using of the amplitude limiter, the sensitivity of the system may be limited to a suitable level and therefore the stability of the whole system is increased. The proportional-plus-integral compensator is used to compensate the steady state error caused by improper low resolution when the output signal of the amplitude limiter is below an preliminary level. The regulator is used for facilitating the adjustment of the sensitivity of the system according to user's practical experiences.

  Recently Added Patents
Methods, systems, and media for swapping faces in images
Invisible fence battery charger
Movable assemblies for an image reader unit and a cover unit in an image formation apparatus
Modular utility rack
MOS transistor having combined-source structure with low power consumption and method for fabricating the same
Format for providing traffic information and a method and apparatus for using the format
Pose-variant face recognition using multiscale local descriptors
  Randomly Featured Patents
Grease gun head
Liquid crystal display device
Sonar apparatus
Hip compression screw assemblies and joints therefor
Triple-buffering method for overlapped motion compensation in a video decoder
Storing audio-centered information with a multi-level table-of contents (TOC) mechanism having redundant sub-TOCs
Swing seat
Fire resistant panel door
Image capturing apparatus capable of extracting a moving object
Document rearrangement system