Validation of a novel fiber optic strain gauge in a cryogenic and high magnetic field environment

被引：9

作者：

Baxter, Scott ^{[1
,2
]}

Lakrimi, M'hamed ^{[1
]}

Thomas, Adrian M. ^{[1
]}

Gao, Yunxin ^{[1
]}

Blakes, Hugh ^{[1
]}

Gibbens, Paul ^{[3
]}

Looi, Mengche ^{[4
]}

机构：

[1] Siemens Plc, Healthcare Sector, MR Magnet Technol, Witney OX29 4BP, Oxon, England

[2] Univ Bath, Dept Phys, Bath BA2 7AY, Avon, England

[3] Accurate Controls Ltd, Poole BH17 0UJ, Dorset, England

[4] OpSens, Quebec City, PQ G1N 4N6, Canada

来源：

CRYOGENICS | 2010年 / 50卷 / 10期

关键词：

Stress effects; Thermal expansion; Instrumentation; Optical Techniques; Superconducting magnetic; SUPERCONDUCTING COILS; SHRINKAGE; STRESS;

D O I：

10.1016/j.cryogenics.2010.07.005

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

We report on the first operation of an easy to use low cost novel fiber optic strain gauge (FOSG) in cryogenic and magnetic field environments. The FOSGs were mounted on a superconducting coil and resin impregnated. The gauges detected resin shrinkage upon curing. On cooldown, the FOSG monitored the thermal contraction strains of the coil and the electromagnetic strain during energization. The coil was deliberately quenched, in excess of 175 times, and again the FOSG detected the quenches and measured the thermal expansion-induced strains and subsequent re-cooling of the coil after a quench. Agreement with FEA predictions was very good. (C) 2010 Elsevier Ltd. All rights reserved.

引用

页码：700 / 707

页数：8

共 20 条

[1] EXPERIMENTAL AND THEORETICAL INVESTIGATION OF MECHANICAL DISTURBANCES IN EPOXY-IMPREGNATED SUPERCONDUCTING COILS .2. SHEAR-STRESS-INDUCED EPOXY FRACTURE AS THE PRINCIPAL SOURCE OF PREMATURE QUENCHES AND TRAINING-THEORETICAL ANALYSIS
BOBROV, ES
WILLIAMS, JEC
IWASA, Y
[J]. CRYOGENICS, 1985, 25 (06) : 307 - 316
[2] CHEHURA E, SMART MAT STRU UNPUB
[3] DELCHAMPS S, 1990, 90053 TSSSC
[4] Mechanical properties of epoxy impregnated superconducting solenoids
Dixon, IR
Walsh, RP
Markiewicz, WD
Swenson, CA
[J]. IEEE TRANSACTIONS ON MAGNETICS, 1996, 32 (04) : 2917 - 2920
[5] Materials technology for magnet insulation and bonding
Evans, D
[J]. IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY, 2000, 10 (01) : 1300 - 1305
[6] HALPIN-TSAI EQUATIONS - REVIEW
HALPIN, JC
KARDOS, JL
[J]. POLYMER ENGINEERING AND SCIENCE, 1976, 16 (05) : 344 - 352
[7] Determination of Shrinkage and Modulus Development of Thermosetting Resins
Hoa, S. V.
Ouellette, P.
Ngo, T. D.
[J]. JOURNAL OF COMPOSITE MATERIALS, 2009, 43 (07) : 783 - 803
[8] Strain response of fibre Bragg grating sensors at cryogenic temperatures
James, SW
Tatam, RP
Twin, A
Morgan, M
Noonan, P
[J]. MEASUREMENT SCIENCE AND TECHNOLOGY, 2002, 13 (10) : 1535 - 1539
[9] Jones R. M., 1998, Mechanics of composite materials
[10] RESISTANCE MINIMUM IN DILUTE MAGNETIC ALLOYS
KONDO, J
[J]. PROGRESS OF THEORETICAL PHYSICS, 1964, 32 (01): : 37 - +

← 1 2 →