Donald L Burdette says:
Someone recently asked how to measure inductance. Obviously, the best way is to have an inductance bridge or meter. But since I have neither, here's my favorite way:Get a sine wave oscillator, and put the inductor and a resistor in series across the output. I generally start with about 100 ohms. Adjust the oscillator frequency until the voltage across the inductor and the resistor is equal. Since they are 90 degrees out of phase, each will be 0.707 times the oscillator voltage. At this frequency, the inductor has an impedance of 100 ohms, and the inductance can be calculated from Z = 2 * pi * f * L.
Questions:
But should the value of Inductivity be different for different frequencies? IF so, then which value of inductivity should be assumed for practical considerations?+
Hello all, I'm a student and want to measure inductance of a solenoid valve. I measured it with L meter and found that it changes with change in frequency of the L meter. Why so and what exact relation inductance has with the frequency?James Newton replies: The formula is given on this page. f is the Frequency. As to the reason, it is simply that the higher the frequency, the more the signal is transmitted. It is transmitted into the air from each point in the wire, and so recieved back into different points along the wire.+
Comments:
See also:
file: /Techref/inductor/measure.htm, 5KB, , updated: 2010/12/7 09:30, local time: 2021/12/2 16:27,

©2021 These pages are served without commercial sponsorship. (No popup ads, etc...).Bandwidth abuse increases hosting cost forcing sponsorship or shutdown. This server aggressively defends against automated copying for any reason including offline viewing, duplication, etc... Please respect this requirement and DO NOT RIP THIS SITE. Questions? <A HREF="http://piclist.com/Techref/inductor/measure.htm"> Measuring Inductance</A> 
Did you find what you needed? 
PICList 2021 contributors:
o List host: MIT, Site host massmind.org, Top posters @20211202 Neil, Harold Hallikainen, Alan Pearce, RussellMc, Bob Blick, Allen Mulvey, Justin Richards, Dwayne Reid, madscientistatlarge, Sean Breheny, * Page Editors: James Newton, David Cary, and YOU! * Roman Black of Black Robotics donates from sales of Linistep stepper controller kits. * Ashley Roll of Digital Nemesis donates from sales of RCL1 RS232 to TTL converters. * Monthly Subscribers: Gregg Rew. ongoing support is MOST appreciated! * Contributors: Richard Seriani, Sr. 
Welcome to piclist.com! 
.