METHOD AND DEVICE FOR PARTICULARLY IMPROVING THE REPEATABILITY AND EFFICIENCY OF PRESSURE WAVE TAKING PLACE BETWEEN TWO ELECTRODES DURING CAPACITOR DISCHARGE WITH CONDUCTIVE LIQUID MEDIUM INTERPOSED THEREBETWEEN AND IMPULSE WAVE GENERATING DEVICE USING SAID METHOD AND DEVICE TO CONDUCT STONE CRUSHING PARTICULARLY IN LIQUID

摘要

PURPOSE: To prevent discharge vibration by remarkably decreasing resistance to a current between electrodes, and setting the resistance to a resistance value close to the critical resistance or a little higher than that. CONSTITUTION: Resistance to a current flowing between electrodes 12, 14 is remarkably decreased to reach a resistance value close to the critical resistance or a little higher than that. In order to decrease the electric resistance, it is desirable to provide a conductive liquid medium partially positioned between the electrodes, and it can be simply accomplished by filling an elliptic reflector 10 with a conductive liquid medium. The conductive liquid medium is let have electric resistance at least 1/10, preferably 1/100 of the value of electric resistance, taking normal ionized water normally having low efficiency of about 1500Ωcm as a reference. That is, the electric resistance of the conductive medium is such that specific resistance of about 20Ωcm or less is desirable, and preferably it ranges from severalΩcm to 20Ωcm. Thus, discharge vibration is prevented.