常州市衡正电子仪器有限公司是一家集软件开发、制造、销售、服务于一体的科技型现代化企业。
扫描手机二维码
扫描微信二维码
13861223798

新闻中心

NEWS CENTER

网站公告:测试信息来自互联网,若涉及侵权,请联系我们删除! 您当前所在位置:首页 > News > Industry information > 正文返回

New breakthrough performance of technology (accuracy of automatic calibration fu

更新时间:2017-04-20 10:33:56点击次数:2031次字号:T|T
At present, the domestic production of surface / interface tension meter manufacturers have a lot of surface / interface tension meter model is varied, but in addition to Shanghai Fang Rui Instrument Co., Ltd. produced a series of surface / interface tens
At present, the domestic production of surface / interface tension meter manufacturers have a lot of surface / interface tension meter model is varied, but in addition to Shanghai Fang Rui Instrument Co., Ltd. produced a series of surface / interface tension meter, no one has a " Accuracy of automatic calibration "" temperature automatic compensation "these international advanced and very practical new technology.
The so-called "accuracy of automatic calibration" is the instrument test standard sample of the overall error automatically corrected to secondary distilled water and pure ethanol as the standard, and the literature value of the error can be achieved: ≤ ± 0.2mN / m (BZY series, QBZY-1 type), ≤ ± 0.04 mN / m (QBZY-2 type), ≤ ± 0.02 mN / m (QBZY-3 type).
All surface / interfacial tension gauges are generally full scale calibrated, no matter what method, only the circuit part of the instrument can be corrected, that is, with a standard weight of the weight to replace the measured value of the sample. Full-scale calibration is necessary for the instrument, but it is not comprehensive: the full scale calibration of the instrument, does not mean that the actual test sample is accurate. This is because full-scale calibration does not take into account the test error of the sensing element - platinum plate or platinum ring. Platinum plate or platinum ring has a strict size and processing requirements, the platinum plate requires smooth, the surface has a certain degree of roughness, with the liquid full wetting, contact angle is zero; platinum ring platinum wire diameter, Related standards, but also requires a standard circle.
The instrument factory carefully adjusted, should be able to meet the provisions of the factory standard, but the use of a period of time? How many will encounter the following situation:
1. Platinum plate surface with wear, scratches or dimensions have changed a little
2. Platinum ring deformation, no matter how plastic surgery is the whole round or the bottom of the whole uneven
3. Platinum or Platinum ring no matter what method is not clean wash
The above situation, will certainly have a greater error on the test accuracy, high precision in the test case, the greater the impact. To solve this problem, follow the previous practice, only to re-purchase platinum plate or platinum ring. Now with the "accuracy of automatic correction" this function, just test the secondary distilled water and pure ethanol to re-calibration of the instrument, you can solve this problem. Which improves the instrument's test accuracy and reduces the instrument's cost.
For this calibration, the standard sample needs to be kept at 20 ° C. According to the literature, the surface tension of the secondary distilled water at 20 ° C is 72.75 mN / m, and the surface tension of ethanol at 20 ° C is 22.3 mN / m. After a simple operation, the accuracy of the instrument can be calibrated to the exact state of the factory, can meet the technical requirements of the instrument requirements, that is ≤ ± 0.2mN / m (BZY series, QBZY-1 type), ≤ ± 0.04 MN / m (QBZY-2 type), ≤ ± 0.02 mN / m (QBZY-3 type).
(编辑:HengZheng)
0 条评论
不想登录?直接点击发布即可作为游客留言。

新闻中心列表

公司新闻
行业资讯

新闻推荐

教您使用FA系列电子天平妙招

JA系列电子天平如何选购?

电子天平如何测量固体密度

该挑选内校还是外校电子天平

经常应用天平的顾客应当了解,强制的计量设备是规定外校的。而又有很...

怎么样调节电子天平水平

电子天平在称量过程中会因为摆放位置不平而产生测量误差,称量精度越...

电子天平未来的广泛运用

电子天平采用人体工程学设计,让日常常规称量轻松。基本功能唾手可得...

台式电子天平机械故障解决方案

台式电子天平品种繁多,使用也比较普遍。以其品种繁多,台式电子天平...

联系我们

地址:江苏省常州市钟楼区龙城大道2188号新闸科技园

联系人:查小姐
邮编:213000
电话:0519-83263587
传真:0519-83268313
网址:http://www.czhzyq.com/

联系我们
地址:常州市钟楼区龙城大道2188号新闸科技园10栋313
联系人:查小姐
电话:0519-83263587
传真:0519-83268313
网址:http://www.czhz17.com
关注衡正
Copyright © 2017 - 2024 All Rights Reserved 常州市衡正电子仪器有限公司 版权所有  苏ICP备17024635号 技术支持:冉冉科技 网站地图