ABSORPTION-FORCE TESTING APPARATUS FOR MICRO VALVE OF AIRPRESSURE

摘要

An absorption force testing system of a pneumatic microvalve is provided to recognize electric responsibility for a clearance between a plunger and a stator(core) and the elastic restoring force of the plunger for the loss of magnetic force, thereby measuring absorption force applied by the displacement of the plunger. An absorption force testing system of a pneumatic microvalve includes a base(10), a table(20) moving on the table along axes X and Y, a clamp(30) secured on the table for fixing a pneumatic microvalve(200), a Z-axis movement board(50) supported by a supporting die(40) fixed to the base and lifting by the driving of a servo motor(41), and a load cell(51) fixed to the Z-axis moving board and axially coupled with the pneumatic valve for applying force to the pneumatic microvalve in response to the lowering of the z-axis moving board. The load cell is coupled with a plunger of the pneumatic microvalve and senses the lifting or lowering force of the plunger.