Details of measuring arrangements of the types provided for in groups G01R17/00 - G01R29/00 and G01R33/00 - G01R35/00

GPHYSICS G01Measuring instruments G01RMEASURING ELECTRIC VARIABLES MEASURING MAGNETIC VARIABLES

G01R15/00Details of measuring arrangements of the types provided for in groups G01R17/00 - G01R29/00 and G01R33/00 - G01R35/00

G01R15/002Switches for altering the measuring range or for multitesters G01R15/005Circuits for altering the indicating characteristic G01R15/007by zero-suppression G01R15/04Voltage dividers G01R15/06having reactive components G01R15/08Circuits for altering the measuring range G01R15/09Autoranging circuits G01R15/12Circuits for multi-testers, i.e. multimeters G01R15/125for digital multimeters G01R15/14Adaptations providing voltage or current isolation G01R15/142Arrangements for simultaneous measurements of several parameters employing techniques covered by groups G01R15/14 - G01R15/26 G01R15/144Measuring arrangements for voltage not covered by other subgroups of G01R15/14 G01R15/146Measuring arrangements for current not covered by other subgroups of G01R15/14 G01R15/148involving the measuring of a magnetic field or electric field G01R15/16using capacitive devices G01R15/165measuring electrostatic potential G01R15/18using inductive devices G01R15/181using coils without a magnetic core G01R15/183using transformers with a magnetic core G01R15/185with compensation or feedback windings or interacting coils G01R15/186using current transformers with a core consisting of two or more parts G01R15/188comprising rotatable parts G01R15/20using galvano-magnetic devices, e.g. Hall-effect devices G01R15/202using Hall-effect devices G01R15/205using magneto-resistance devices G01R15/207Constructional details independent of the type of device used G01R15/22using light-emitting devices G01R15/24using light-modulating devices G01R15/241using electro-optical modulators G01R15/242based on the Pockels effect G01R15/243based on the Kerr effect G01R15/245using magneto-optical modulators G01R15/246based on the Faraday G01R15/247Details of the circuitry or construction of devices covered by G01R15/241 - G01R15/246 G01R15/248using a constant light source and electro-mechanically driven deflectors G01R15/26using modulation of waves other than light