SQUID MAGNETOMETER
PURPOSE:To obtain a SQUID magnetometer simplified in the insertion and pulling-out of a probe with respect to a Dewar and capable of preventing the evaporation of liquid helium. CONSTITUTION:A SQUID magnetometer consists of a cryogen container 1 having liquid helium A received therein and the probe...
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Main Author | |
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Format | Patent |
Language | English |
Published |
14.01.1993
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Subjects | |
Online Access | Get full text |
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Abstract | PURPOSE:To obtain a SQUID magnetometer simplified in the insertion and pulling-out of a probe with respect to a Dewar and capable of preventing the evaporation of liquid helium. CONSTITUTION:A SQUID magnetometer consists of a cryogen container 1 having liquid helium A received therein and the probe equipped with a plurality of SQUID elements 3 and a plurality of pickup coils 4 arranged to the cryogen container 1 so as to be capable of being inserted in and pulled out of the container 1. The probe 2 consists of a support 21 having a lid plate part 21a closing the opening part 13 of the cryogen container 1 at the upper part thereof, a plurality of screw shafts 23 arranged to the outer periphery of the support 21 in an annular form and piercing the lid plate part 21a at the base ends thereof and upwardly energized by springs, a plurality of screw receiving cylinders 24 with which the leading ends of the screw shafts 23 are threaded, the key shafts fastened to the support 21 at the base end thereof and fitted in the developing groove parts of the screw receiving cylinders at the leading ends thereof and coil rods having bobbins having pickup coils 4 wound therearound fastened to the leading ends thereof and fastened to the lower parts of the screw receiving cylinders 24 at the base ends thereof. |
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AbstractList | PURPOSE:To obtain a SQUID magnetometer simplified in the insertion and pulling-out of a probe with respect to a Dewar and capable of preventing the evaporation of liquid helium. CONSTITUTION:A SQUID magnetometer consists of a cryogen container 1 having liquid helium A received therein and the probe equipped with a plurality of SQUID elements 3 and a plurality of pickup coils 4 arranged to the cryogen container 1 so as to be capable of being inserted in and pulled out of the container 1. The probe 2 consists of a support 21 having a lid plate part 21a closing the opening part 13 of the cryogen container 1 at the upper part thereof, a plurality of screw shafts 23 arranged to the outer periphery of the support 21 in an annular form and piercing the lid plate part 21a at the base ends thereof and upwardly energized by springs, a plurality of screw receiving cylinders 24 with which the leading ends of the screw shafts 23 are threaded, the key shafts fastened to the support 21 at the base end thereof and fitted in the developing groove parts of the screw receiving cylinders at the leading ends thereof and coil rods having bobbins having pickup coils 4 wound therearound fastened to the leading ends thereof and fastened to the lower parts of the screw receiving cylinders 24 at the base ends thereof. |
Author | TAKAHATA MITSUHIRO |
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Notes | Application Number: JP19910158367 |
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Snippet | PURPOSE:To obtain a SQUID magnetometer simplified in the insertion and pulling-out of a probe with respect to a Dewar and capable of preventing the evaporation... |
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SubjectTerms | BASIC ELECTRIC ELEMENTS ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR ELECTRICITY MEASURING MEASURING ELECTRIC VARIABLES MEASURING MAGNETIC VARIABLES PHYSICS SEMICONDUCTOR DEVICES TESTING |
Title | SQUID MAGNETOMETER |
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