ELECTRIC MEASURING CONTROL APPARATUS

Brand Owner (click to sort) Address Description
CERAMAT Knick Elektronische Messgeräte GmbH & Co. KG Beuckestraße 22 14163 Berlin Germany Electric measuring and control apparatus, namely, electric retractable probes and fittings for use in measuring and analyzing fluids, and parts therefor;Color is not claimed as a feature of the mark.;
UNICAL Knick Elektronische Messgeräte GmbH & Co. KG Beuckestraße 22 14163 Berlin Germany Electric measuring and control apparatus and their parts, namely, an electro-pneumatic controller for fully automated pH measurement, cleaning and calibration;Color is not claimed as a feature of the mark.;
 

Where the owner name is not linked, that owner no longer owns the brand

    
Technical Examples
  1. A magnetic head testing apparatus having the function of evaluating pin holes in a tunnel barrier layer of a TMR element by a non destructive inspection is disclosed. The testing apparatus comprises a temperature control unit which sets a circumferential temperature of a TMR element, a bias electric current control unit which applies an electric current for measuring a resistance value, an element resistance measuring unit and a CPU which calculates a temperature coefficient. The CPU determines a pin hole state in the tunnel barrier layer based on the temperature coefficient.