Measurement of ac losses in multifilament super-conducting wires at frequencies between 1 and 100 Hz
✍ Scribed by K. Kwasnitza; I. Horvath
- Publisher
- Elsevier Science
- Year
- 1974
- Tongue
- English
- Weight
- 473 KB
- Volume
- 14
- Category
- Article
- ISSN
- 0011-2275
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✦ Synopsis
Calorimetric measurements of the losses of a superconducting coil wound from a moderately twisted multifilamentary superconducting wire have been made with a coil current consisting of a direct current and a superimposed ac component at frequencies between I and 100 Hz. There exists a frequency range where the loss per cycle decreases with increasing frequency. Magnetization measurements on a sample of the multifilament wire in an applied inductance B = Bs + Bo sin co t confirmed the results of the calorimetric measurements and indicated that with increasing frequency the flow of magnetic flux into and out of the composite during a cycle becomes more and more diminished.