conductive pipe. The measurement is made with a coil. arrangement that produces a magnetic field that opposes the. primary field casing attenuation and phase-shift. The magnitude of the phase shift is a function of the casing electrical. conductivity, magnetic permeability and thickness of the metal present in the. field.
The long-tailed weasel is one of the larger members of the genus Mustela in North America, with a total length of 300â350 mm (12â14 in) and a tail comprising 40â70% of the head and body length. In most populations, females are 10â15% smaller than males, thus making them about the same size as large male stoats.
Long-tailed weasels have a long slender body and head. Their long bodies and flexible backs allow them to enter the burrows of rodents and other animals that are smaller than them. On average, males are larger than females. These weasels have long, bushy tails that make up about 50% of their total body length. Long-tailed weasels have a small, narrow head with long whiskers, and short legs. Their fur is composed of short, soft underfur covered by shiny guard hair.