Web1 de set. de 2007 · HFIL and HFEML logging uses tools consisting of five or nine three-loop sets, with alternating current in the transmitter loop (operation frequency is from 0.875 to … WebIt can calculate accurately the resistivity of formation, the resistivity of the invaded zone and the invaded radius. In comparison with conventional induction and thin bed logging, it is …

Dual‐frequency induction heating for gear hardening: converter ...

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 … WebLike many logging methods, high-frequency induction isoparametric logging was originally designed for vertical holes (Epov and Antonov, 2000). The conventional data … northern boy and southern girl

algorithms - Prove $\log (n) = O (n)$ using induction

WebThe reheating experiments were performed using an induction heating system with a high-frequency induction heating coil system (30-80 kHz, 35 kW) at semisolid temperatures (569 °C to 600 ℃). A thermocouple hole to measure the temperature was machined at a position 15 mm from the surface ( marked in S ) of the billet and 10 mm at the core of the … Web5 de out. de 2013 · Joined Sep 30, 2009. 9,811. Sep 25, 2013. #2. Induction motors are run at a higher frequency in some areas of need. But no where near your 10kHz. Aircraft and some places like oil field work and mining use 400Hz. This is for lighter weight, since the higher frequency cuts down on the amount of iron and copper. Web1 de abr. de 2024 · In this article, we are the first to formulate the direct and inverse problems of resistivity logging on determining the components of the electrical resistivity tensor of rocks from a set of high-frequency induction … how to rid your garden of slugs