WebModule for processing high-frequency induction log isoparametric sounding data (VIKIZ) The VIKIZ method is designed to survey spatial distribution of true resistivity of rocks … Webradio-frequency heating, process of heating materials through the application of radio waves of high frequency—i.e., above 70,000 hertz (cycles per second). Two methods of radio-frequency heating have been developed. One of these, induction heating, has proved highly effective for heating metals and other materials that are relatively good …
Induction logging - PetroWiki
WebThe solution is the use of a dual-frequency inverter. The output current i flowing through the exciter coil consists of two components: i = iMF + iHF (MF, medium frequency; HF, high frequency). Properly matched frequencies and amplitudes of both iMF and iHF allow to reach even heat surface distribution. Web10 de out. de 2024 · A PAPER on a high-frequency induction furnace for making alloys was presented by Mr. D. F. Campbell at the autumn meeting of the Iron and Steel Institute held in Birmingham on September 10. The ... how many seasons of icarly were made
DSP-based PLL-controlled 50–100 kHz 20 kW high-frequency induction ...
Web6 de dez. de 2015 · I am using the lecture notes here on page 19 (Algorithm Notes 1) example 1 is the inductive proof of. log ( n) = O ( n). I understand the base case but I don't understand the rest of the example. Example: log ( n) = O ( n). Claim: For all n ≥ 1, log ( n) ≤ n. The proof is by induction on n. The claim is trivially true for n = 1, since 0 < 1. Web14 de nov. de 2024 · This anisotropy is typically in the form of vertical and/or horizontal transverse isotropy (VTI/HTI). Energy Sources for Acoustic Logs Tools today typically operate in the 5 – 10kHz frequency range. In our Sonic Logging Examples we use two different types of excitation method, monopole (Figure 1) and a Dipole (Figure 2) source. Web30 de set. de 2001 · High frequency simulation models for power cables and motors are the key tools that aid a better understanding of the overvoltage problem in PWM drives with long feeders. In this paper, the frequency responses of the cable and the motor windings are obtained experimentally and suitable models are developed to match the experimental … how did dickens influence christmas