✍ Scribed by Siew Kan; Philippe Jehenson; Anne Leroy-Willig
No coin nor oath required. For personal study only.
Synthesizing two different values of inductance from a given sample coil for use in a single‐input double‐tuned circuit is possible by means of three extra LC elements. A detailed analysis with derived equations shows how to calculate the circuit component values and what to expect from this kind of probe. It also derives the upper limit of the trap coil/sample coil inductance ratio beyond which no solution exists to double‐tune the ^31^P‐^1^H probe. The general expression for the channel efficiency shows that the latter is a function not only of the inductance of the coils, but also of their quality factor and of the operating frequencies. A numerical example is given illustrating good agreement between experiment and theory provided high quality rf capacitors are used. © 1991 Academic Press, Inc.
📜 SIMILAR VOLUMES
In this paper we derive a double-tuned, narrow-band transfer function and illustrate its LC simulation-type active realization with low element sensitivity. First, a new double-tuned function that is adjustable by a single parameter is derived for a circuit using mutual induction. Next, the basic ci
Intermediate radical products, which are formed when monocrystals of sterically hindered phenols containing lo-' M Z&k&tbutyl quinone diazide are photolysed, have been studied employing EPR. We have identified the formation of carbenes and several types of radical pairs It is found that, with a rise