Portable digital ohmmeter

Details Portable digital ohmmeter Portable digital ohmmeter

G - Physics

01

R

324/45

G01R 27/16 (2006.01) G01R 27/20 (2006.01) G01R 31/327 (2006.01)

Patent

CA 1122276

45,733 PORTABLE DIGITAL OHMMETER ABSTRACT OF THE DISCLOSURE A portable ohmmeter for use in measuring the resistance of an electrical contact including a direct current battery, and a resistive element serially connected with the contact and the battery to form a complete circuit. Included are means for sensing the voltage drop across both the resistive element and the contact, and a digital rati- ometer for displaying the value of the resistance of the electrical contact. The digital ratiometer displays the ratio of the voltage drop across the contact to the voltage drop across the resistive element, which ratio is also the value of the resistance of the contact. Also included are means for calibrating the radiometer as a function of the resistance of the resistive element.

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