LandOfFree - US Patents - Listing for Electricity: measuring and testing,Measuring, testing, or sensing electricity, per se,Phase comparison

Electricity: measuring and testing – Measuring – testing – or sensing electricity – per se – Phase comparison

System for detecting incorrect phase rotation

Electricity: measuring and testing – Measuring – testing – or sensing electricity – per se – Phase comparison

System for measuring the frequency of an electrical signal

Electricity: measuring and testing – Measuring – testing – or sensing electricity – per se – Phase comparison

System for unambiguously determining the phase of an input signa

Electricity: measuring and testing – Measuring – testing – or sensing electricity – per se – Phase comparison

Systems and methods for synchronous detection of signals

Electricity: measuring and testing – Measuring – testing – or sensing electricity – per se – Phase comparison

Test apparatus and testing method

Electricity: measuring and testing – Measuring – testing – or sensing electricity – per se – Phase comparison

Test apparatus and testing method

Electricity: measuring and testing – Measuring – testing – or sensing electricity – per se – Phase comparison

Three phase reversal detection system

Electricity: measuring and testing – Measuring – testing – or sensing electricity – per se – Phase comparison

Time division multiplier transducer with selective phase shift

Electricity: measuring and testing – Measuring – testing – or sensing electricity – per se – Phase comparison

Two channel digital phase detector

Electricity: measuring and testing – Measuring – testing – or sensing electricity – per se – Phase comparison

Two channel test instrument with active electronicphase shift me

Electricity: measuring and testing – Measuring – testing – or sensing electricity – per se – Phase comparison

Unbalanced current detection

Electricity: measuring and testing – Measuring – testing – or sensing electricity – per se – Phase comparison

Unbalanced current detector for three phase electrical system

Electricity: measuring and testing – Measuring – testing – or sensing electricity – per se – Phase comparison

Unique phase difference measuring circuit

Electricity: measuring and testing – Measuring – testing – or sensing electricity – per se – Phase comparison

Vector voltmeter

Electricity: measuring and testing – Measuring – testing – or sensing electricity – per se – Phase comparison

Very fast swept spectrum analyzer

Electricity: measuring and testing – Measuring – testing – or sensing electricity – per se – Phase comparison

Voltage modulator circuit to control light emission for...

Electricity: measuring and testing – Measuring – testing – or sensing electricity – per se – Phase comparison

Voltage phase testing and indicating device

Electricity: measuring and testing – Measuring – testing – or sensing electricity – per se – Phase comparison

Waveform comparing phasemeter

Electricity: measuring and testing – Measuring – testing – or sensing electricity – per se – Phase comparison

Waveform crossing detector