×

Portable electromagnetic acoustic transducer pulser controller

  • US 5,708,354 A
  • Filed: 12/18/1996
  • Issued: 01/13/1998
  • Est. Priority Date: 12/18/1996
  • Status: Expired due to Fees
First Claim
Patent Images

1. A variable DC power supply for driving a pulser connected to an electromagnet of an electromagnetic acoustic transducer, the power supply comprising:

  • at least two variable voltage power modules, each module having positive and negative terminals, the modules electrically connected in series such that one positive terminal on one power module is a power module output, the modules for converting AC voltage to DC voltage;

    an AC power supply connected to the at least two power modules;

    potentiometer means for varying the voltage output of each power module;

    diode protection means on each power module for preventing reverse voltages from forming across the positive and negative terminals of each module; and

    switching means for selectively enabling and disabling each power module.

View all claims
  • 3 Assignments
Timeline View
Assignment View
    ×
    ×