| 在线原麦汁浓度检测仪 |
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| 引用本文： | 钱建强,王东生,陈进林.在线原麦汁浓度检测仪[J].光学技术,2002,28(1):65-67. |
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| 作者姓名： | 钱建强 王东生 陈进林 |
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| 作者单位： | 1. 清华大学,精密仪器与机械学系,北京,100084
2. 清华大学,燕京啤酒厂计量科,北京,100084 |
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| 摘 要： | 原麦汁浓度是啤酒生产过程中的一项重要指标。溶液的折射率是其浓度的函数 ,全反射的临界角与其浓度之间有一一对应关系。利用线阵CCD做为高精度探测器件 ,检测全反射临界角的变化 ,可测量溶液的浓度。临界角的变化与电源的波动及光源的强度变化等因素无关 ,并且溶液中的固体颗粒、小气泡等不影响检测精度。研制了一种在线检测原麦汁浓度的测试仪器 ,介绍了仪器的光学结构及数据处理方法。现场测量精度为± 0 1(以浓度表示)
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| 关 键 词： | 原麦汁浓度 线阵CCD在线检测 光学折射率 |
| 文章编号： | 1002-1582(2002)01-0065-03 |
| 修稿时间： | 2001年5月21日 |
An instrumentation for on-line measurement of the beer crude wheat juice concentration |
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| QIAN Jian qiang ,WANG Dong sheng ,CHENG Jin lin.An instrumentation for on-line measurement of the beer crude wheat juice concentration[J].Optical Technique,2002,28(1):65-67. |
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| Authors: | QIAN Jian qiang WANG Dong sheng CHENG Jin lin |
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| Institution: | QIAN Jian qiang 1,WANG Dong sheng 1,CHENG Jin lin 2 |
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| Abstract: | The crude wheat juice concentration is an important factor in the process of beer production As the refractive index of solution is a function of the concentration, the critical angle is only determined by its concentration The linear CCD was taked as the high accuracy detector to measure the change of the critical angle, and then its concentration was calculated The change of the critical angle has no relation with disturbance of the electric power and source intensity, etc The undissolved particles of the solution and gas bubbles do not interfere with the measuring result An instrument for on line measurement of the concentration was developed, and the optical structure and data processing method is described The accuracy is proved to be about ±0 1% (concentration) by experiment |
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| Keywords: | beer crude wheat concentration linear CCD for on line measurement optical refractive index |
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