modified adaptive method for accurate voltage measurement in optical voltage transducers

A Method for Linearization of Optically Insulated Voltage Transducers

In the perspective of a capillary power system monitoring, measurement transducers must have larger and larger bandwidth and accuracy, due to proliferation on power grids of new power quality phenomena. Various types of voltage transducers, based on different operation principles, have been realized; in particular, those based on voltage dividers and optical insulation with digital communicatio...

Isolated Current and Voltage Transducers

معرفی روش تطبیقی اصلاح شده برای اندازه‌گیری دقیق ولتاژ در مبدل ولتاژ نوری

There are fewer problems encountered with optical voltage transducers in comparison with their inductive and capacitive counterparts. Although capacitive and inductive transformers are used vastly for the purpose of measurement and protection in the networks, they cause problems such as core saturation and improper transient responses which decrease the accuracy of measurement and eficiency of ...

Accurate Determination of the Pull-in Voltage for MEMS Capacitive Microphone with Clamped Square Diaphragm

Accurate determination of the pull-in, or the collapse voltage is critical in the design process. In this paper an analytical method is presented that provides a more accurate determination of the pull-in voltage for MEMS capacitive devices with clamped square diaphragm. The method incorporates both the linearized modle of the electrostatic force and the nonlinear deflection model of a clamped ...

Topologically dependent voltage measurement

In many cases the electric field is the gradient of a potential. In those cases a measured voltage is completely determined by the points connected to the measuring device. But if the curl of the electric field vector is non-vanishing (i.e. the magnetic field is time-dependent), a measured voltage may depend on the topology of the circuit. This effect was discussed in articles by Romer (1982), ...

Optical high voltage measurement transformer using white light interferometry

A new approach to perform measurement of potentials in high voltage levels using electrooptical Pockels sensors is presented here. This paper describes an application of the White Light Interferometry technique to a high voltage optical fiber measurement system. In this system the information is encoded in the spectrum of the light, allowing the measurement to be independent of the optical powe...