@article{oai:soar-ir.repo.nii.ac.jp:00017221,
 author = {石田,  光夫},
 journal = {信州大學紀要},
 month = {May},
 note = {For the purpose of, quality control, improvements of working efficiency and production process or to elliminate the troubles on commerce.It's desired to measure the dryness or water contents of the raw materials or manufactured goods. We have studied on the measurements and design of the practical apparatus,stand on the electrical methods.The results obtained are as follows;1. to the drymeter of wood,we proposed the resistance method employing the conducting rubber as electrodes and a megger. 2. to the water contents meter of pulp or drymeter for the paper and tobacco，the capacity method were employed，especially，the substitution method and the direct reading capacity meter，was analysed，and proposed the electrode system of grid type，which has no influence by the thickness variation of the sample，and give the design and some application on the analysis of the internal distributions of water contents. 3．as the result of analysis of errors due to measurements,sampling,and calibration,the overall errors of the apparatus axe expected within 2％． 4．practical tests of the apparatus were proceeded at the pulp manufacturing Co.and the tobacco manufacturing Co,especially with the self recorder type drymeter，achieved the successful results．, Article, 信州大學紀要 (3): 155-167(1953)},
 pages = {155--167},
 title = {電気的乾燥度計の研究},
 volume = {3},
 year = {1953}
}