{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,5,4]],"date-time":"2026-05-04T16:00:05Z","timestamp":1777910405563,"version":"3.51.4"},"reference-count":18,"publisher":"SAGE Publications","issue":"15","license":[{"start":{"date-parts":[[2018,1,29]],"date-time":"2018-01-29T00:00:00Z","timestamp":1517184000000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/journals.sagepub.com\/page\/policies\/text-and-data-mining-license"}],"funder":[{"DOI":"10.13039\/501100001809","name":"National Natural Science Foundation of China","doi-asserted-by":"publisher","award":["51575277"],"award-info":[{"award-number":["51575277"]}],"id":[{"id":"10.13039\/501100001809","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["journals.sagepub.com"],"crossmark-restriction":true},"short-container-title":["Transactions of the Institute of Measurement and Control"],"published-print":{"date-parts":[[2018,11]]},"abstract":"<jats:p>In the magnetic fields built by neodymium\u2013iron\u2013boron (NdFeB) permanent magnets, the corresponding relationship among the concentration of sodium chloride solution, glucose solution and their magnetic rotation angles was researched in the temperature range 20\u201324\u00b0C. A helium\u2013neon (He\u2013Ne) laser with a wavelength of 632.8 nm was used in the experiment as light source. A new device is designed for assembling and adjusting the NdFeB permanent magnets. The permanent magnets have no thermal effect compared to an energized solenoid. The corresponding relationship between the concentration and rotation angle is calibrated by standard concentration gradient solutions. Then the concentration can be detected by using this relationship. The rotation angle of the solution is proportional to the concentration and increased with an increase of the magnetic induction intensity. In the magnetic cavity with \u03a612 mm dimension, the rotation angles of sodium chloride solutions in the range 0\u201330 g\/100 ml vary from 2.66\u00b0 to 3.73\u00b0 and their relative errors range from \u22121.39% to 1.34%. The rotation angles of glucose solutions in the range 0\u201350 g\/100 ml vary from 2.66\u00b0 to 26. 44\u00b0 and their relative errors range from \u22120.55% to 1.00%. The uncertainty of this system is 0. 05\u00b0.<\/jats:p>","DOI":"10.1177\/0142331217744619","type":"journal-article","created":{"date-parts":[[2018,1,29]],"date-time":"2018-01-29T09:26:52Z","timestamp":1517218012000},"page":"4266-4272","update-policy":"https:\/\/doi.org\/10.1177\/sage-journals-update-policy","source":"Crossref","is-referenced-by-count":0,"title":["Research on the method of measuring solution concentration based on the magneto-optical effect in permanent magnetic fields"],"prefix":"10.1177","volume":"40","author":[{"given":"Xin-yu","family":"Gong","sequence":"first","affiliation":[{"name":"Nanjing University of Aeronautics and Astronautics, China"}]},{"given":"Yong-hua","family":"Lu","sequence":"additional","affiliation":[{"name":"Nanjing University of Aeronautics and Astronautics, China"}]},{"given":"Le-gang","family":"Lin","sequence":"additional","affiliation":[{"name":"CAMA LuoYang Gas Supply CO. 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