Abstract- The development of De-Sauty’s bridge for capacitance measurement has been followed by various modifications and improvements in the original circuit. Lately Schering bridge and transformer ratio arm bridge have been used for measurement of capacitance in a circuit.Today there is instrumentation available that makes use of these bridges in real life such as that can measure the quality of electrical insulation at power frequency as well as in touch-sensitive sensors. This paper
Premium Capacitor Inductor Capacitance
Operational amplifier - Wikipedia‚ the free encyclopedia http://en.wikipedia.org/wiki/Operational_amplifier Operational amplifier From Wikipedia‚ the free encyclopedia An operational amplifier ("op-amp") is a DC-coupled high-gain electronic voltage amplifier with a differential input and‚ usually‚ a single-ended output.[1] An op-amp produces an output voltage that is typically hundreds of thousands of times larger than the voltage difference between its input terminals.[2] Operational amplifiers
Premium
Indian Railways (reporting mark IR) It is an Indian state-owned enterprise‚ owned and operated by the Government of India through the Ministry of Railways. It is one of the world’s largest railway networks comprising 115‚000 km (71‚000 mi) of track over a route of 65‚000 km (40‚000 mi) and 7‚500 stations. As of December 2012‚ it transported over 25 million passengers daily (over 9 billion on an annual basis). In 2011‚ IR carried over 8‚900 million passengers annually or more than 24 million passengers
Premium Ultrasound Refraction Snell's law
Kirchhoff’s Law Kirchhoff’s current law (KCL) imposes constraints on the currents in the branches that are attached to each node of a circuit. In simplest terms‚ KCL states that the sum of the currents that are entering a given node must equal the sum of the currents that are leaving the node. Thus‚ the set of currents in branches attached to a given node can be partitioned into two groups whose orientation is away from (into) the node. The two groups must contain the same net current. In general
Premium
2 Basics of Ultrasound Imaging Vincent Chan and Anahi Perlas 13 14 14 14 15 18 19 19 Introduction ................................................................................................................... Basic Principles of B-Mode US...................................................................................... Generation of Ultrasound Pulses ................................................................................... Ultrasound Wavelength and Frequency ..........
Premium Ultrasound Acoustics Sound
on the ionic conductivity of YSZ thin films produced by pulsed laser deposition. The materials used for the electrodes and wiring of the samples‚ the measurement set-up and the sample configuration played an important role in obtaining successful impedance measurements in temperatures up to 900ºC. Part of this research was therefore contributed to finding the optimal conditions for ionic conductivity measurements on YSZ thin films. Four electrode materials were chosen and tested‚ knowing SrRuO3‚ Pt
Premium Electrochemistry Oxygen Electrical conductivity
transistors. Below are the examples of the most common op-amp. The op-amp is three terminal devices‚ which is inverting terminal‚ non-inverting terminal and the output terminal. In the ideal case‚ op-amp has a infinite input impedance‚ infinite open-loop voltage gain and zero output impedance. The invention of op-amp is still new which less than 100years. However‚ the op-amp is now widely used in electronic device or even the musical instrument. Using different connection to the input resistance and feedback
Premium Phase
=0 ω0 C 1 Resonant frequency ω0 = LC I + V - + VR R+ L VL + C VC - ωL X=ωL-1/ωC 0 ω0 -1/ωC ω A two-terminal network undergoes resonance when the imaginary portion of its impedance (or admittance) becomes zero; or equivalently‚ that the impedance (or admittance) becomes real. For series RLC circuit‚ j Z (ω ) = R + jωL − = R + jX (ω ) ωC ⎛ ω 2 LC − 1 ⎞ Z (ω ) = R + j ⎜ ⎟ ⎝ ωC ⎠ At resonance‚ Z (ω 0 ) = R ⎛ ω LC − 1 ⎞ 2 Z (ω ) = R + ⎜ ⎟ ⎝
Premium RC circuit
References: ANSI/IEEE Std. 1001-1988‚ IEEE Guide for Interfacing Dispersed Storage and Generation Facilities with Electric Utility Systems. Arseneau‚ R.‚ Hill‚ E. F.‚ Szabados‚ R.‚ and Ferry‚ D.‚ “Synchronous Motor Impedances Measured at Harmonic Frequencies‚” IEEE/PES Summer Power Meeting‚ Vancouver‚ Canada‚ 1979. Society Summer Meeting‚ 2000. Summer Meeting‚ 2002. Billinton‚ R. and Allan‚ R. N.‚ Reliability Evaluation of Power Systems‚ Pitman Advanced Publishing Program
Premium Electricity distribution Transformer Electric power transmission
cavity resonators. Among these applications‚ driving transmitter antennas is most well known. The transmitter–receivers are used not only for voice and data communication but also for weather sensing (in the form of a RADAR). Wideband amplifier design[edit] Impedance transformations over large bandwidth are difficult to realize‚ thus most widebandamplifiers use 50 Ω output loading. Transistor output power is then limited to is defined as the breakdown voltage is defined as the knee voltage and typically
Premium Control theory Amplifier Hydraulic machinery