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
Process for making thermoplastic polymer pellets
Physiological measuring system comprising a garment in the form of a sleeve or glove and sensing apparatus incorporated in the garment
Semiconductor device including insulating layer of cubic system or tetragonal system
Semiconductor devices having through electrodes and methods of fabricating the same
Semiconductor device and method of forming interconnect structure with conductive pads having expanded interconnect surface area for enhanced interconnection properties
Method for forming ventilation holes in an electrode plate
Antimicrobial polysiloxane materials containing metal species
  Randomly Featured Patents
Heterojunction photodiode
Two-part aqueous composition for coloring hair, which forms a gel on mixing of the two parts
Inflatable towable vehicle
Portable power supply having both inverter power supply and traditional power supply receptacles
Power point
Air intake arrangement for internal combustion engine
Tuning of a resonant circuit in a communications receiver
Conductive interstitial thermal therapy device
Restraining means for limiting speeds of a measuring cable returning to a linear transducer which is a cable extension transducer