Quantcast INDUCTANCE MEASUREMENT

Share on Google+Share on FacebookShare on LinkedInShare on TwitterShare on DiggShare on Stumble Upon
Custom Search
 
  
 
1-18 course is made up of both the reactance and the resistance. Therefore, the capacitance indicated by the analyzer will be lower than the actual value. Figure 1-13 shows a simplified schematic diagram of the capacitance-measuring section of a typical reactance-type electronic volt-ohm-capacitance milliammeter. A 6.3-vac voltage is taken from the filament source and applied across the resistive voltage divider network to determine the designated value of the capacitor. Because of a particular use or circuit application, some capacitors are permitted an even wider variation of capacitance value than is indicated by their rated tolerances. Figure 1-13.—Reactance-type capacitance meter. INDUCTANCE MEASUREMENT A current flowing through a conductor produces a magnetic field around that conductor. If the conductor is formed into a coil, a stronger magnetic field is set up. The relationship between the strength of the field and the intensity of the current causing it is expressed by the inductance of the coil (or conductor). When the current producing the magnetic field ceases, the energy of the magnetic field is returned in part to the circuit source in the form of a reverse current. Inductance, then, is the ability of a coil to function as a storehouse of energy in magnetic form and is determined by the shape and dimensions of the coil. Inductance is measured in henries, millihenries, or microhenries. Inductors can be described generally as circuit elements used to introduce inductive reactance into ac circuits. An inductor is essentially a coil of wire wound around a form using a core of air, magnetic metal, or nonmagnetic metal. A core of magnetic metal produces greater inductance (for a coil of given size and number of turns) than does an air core; a core of nonmagnetic metal produces less inductance than does an air core. At frequencies in the hf and higher regions of the frequency spectrum, coils of small size and


Electrical News
Friday Quiz: Bipolar Transistors
Remember basic transistor physics? Let's see if you really do....
eetimes.com
9 Top Tech from Electronica 2014
After 50 years, Europe's bellwether conference Electronica shows the state...
eetimes.com
Micron Expands IoT & Auto Memory Products
Micron expanded its offerings for embedded applications and the connected...
eetimes.com
Moore's Law Competitor Wins $150K Elevator Pitch Prize
Quilt packaging wins $150,000 prize for best elevator pitch explaining...
eetimes.com
Nexus 6 Vs. iPhone 6 Plus: Phablet Deathmatch
There's never been a better time to buy a big-screened...
eetimes.com
Europe vs. Google
Google may not give much thanks for the gift Europe...
eetimes.com
Stephen Hawking: How He Speaks & Spells
The technology that helped resurrect the life of Stephen Hawking...
eetimes.com
Sony's 3-Year Plan: Treading Water or Just Sinking?
Sony's three-year outlook for its mobile business "isn't aiming for...
eetimes.com
HMC Spec Update Signals Healthy Adoption
The release of the Hybrid Memory Cube specification 2.0, along...
eetimes.com
Power Week: Si-Based Power Discretes to Continue to Dominate Over Next Decade
Discrete power electronics are predicted to become a $23 billion...
eetimes.com
Book Review: Deadly Odds by Allen Wyler
This is a great read that will have you on...
eetimes.com
Supercapacitors: A New Hero in the Spotlight
Today's supercapacitors are being used to replace rechargeable batteries in...
eetimes.com
EEVblog #687 – EFTPOS PIN Pad Terminal Teardown
What’s inside a smart card pinpad EFTPOS terminal? Dave looks...
eevblog.com
Your Part in the Recovery
Engineers and innovators are central to the slow but ongoing...
eetimes.com
Motor Controllers Offer Improved Noise Immunity
Operating at 5V gives these digital signal controllers enhanced noise...
eetimes.com
NXP to Pick Up Its Missing IoT Link - Bluetooth Low Energy
In pursuit of the Internet of Things market, NXP Semiconductors...
eetimes.com
USB Oscilloscopes Get Beta Drivers for Open-Source Hardware
Pico Technology has released beta versions of drivers for BeagleBoneBlack...
eetimes.com
It's Alive! The 3D Printing of Living Tissues
Within a generation, we likely will not just hear of...
eetimes.com
Curiosity Killed the Cat (Just Call Me Mr. Curiosity)
Max desperately needs a cat deterrent, but how should this...
eetimes.com
Memory Design Articles: Diagnostics, Datacenters & Failures
Here's a roundup of recent design articles that are relevant...
eetimes.com
 


Privacy Statement - Copyright Information. - Contact Us

comments powered by Disqus

Integrated Publishing, Inc.
9438 US Hwy 19N #311 Port Richey, FL 34668

Phone For Parts Inquiries: (727) 755-3260
Google +