专利汇可以提供Liquid level meter专利检索,专利查询,专利分析的服务。并且PURPOSE: To eliminate the measuring error of a probe due to temperature variation by judging the liquid level at the substantially same output level of a secondary coil at the maximum or minimum level.
CONSTITUTION: There are arranged in a probe 3 a primary coil 4, which is supplied with an electric current from a power source 6, and a secondary coil 5 which is wound on the primary coil 4 such that it is connected with a comparator 11 through a transformer 7, an amplifier 8 and a rectifier 9. The intersection C between the output signals L
1 due to the change in the liquid level at the temperature T
0 of the coil 5 and the output signals L
2 due to the change in the liquid level at the temperature T
1 is presumed to be the set level of the comparator 11. As a result, the voltage corresponding to the set level is compared by a comparator 11 with the signals rectified by the rectifier 9 so that the liquid levels "high" and "low" are generated and displayed in a display 13 if the rectified signals are lower and higher than the set level, respectively. As a result, even if the positions of the coils 4 and 5 are moved up and down due to the thermal expansion of the probe 3, the position for detecting the liquid level is not influenced to meter the liquid level in hihg accuracy.
COPYRIGHT: (C)1980,JPO&Japio,下面是Liquid level meter专利的具体信息内容。
标题 | 发布/更新时间 | 阅读量 |
---|---|---|
中子探测探头及中子探测芯片 | 2020-05-11 | 63 |
高土壤电阻率地区雷击输电线路耐雷水平测评方法 | 2020-05-13 | 940 |
一种基于无线传输的直流电压测量系统和方法 | 2020-05-08 | 736 |
心磁测量系统 | 2020-05-11 | 486 |
一种暂态电击的模拟测量系统 | 2020-05-12 | 343 |
一种采用CPT磁力仪进行弱磁场测量的方法及CPT磁力仪 | 2020-05-08 | 522 |
一种电磁感应式无线电能传输系统教学装置 | 2020-05-11 | 502 |
一种太阳能电池开路电压分布的检测装置及其检测方法 | 2020-05-13 | 551 |
IGBT热态带载的电压应力测试系统及其方法 | 2020-05-11 | 795 |
电池寿命估计和容量恢复 | 2020-05-12 | 953 |
高效检索全球专利专利汇是专利免费检索,专利查询,专利分析-国家发明专利查询检索分析平台,是提供专利分析,专利查询,专利检索等数据服务功能的知识产权数据服务商。
我们的产品包含105个国家的1.26亿组数据,免费查、免费专利分析。
专利汇分析报告产品可以对行业情报数据进行梳理分析,涉及维度包括行业专利基本状况分析、地域分析、技术分析、发明人分析、申请人分析、专利权人分析、失效分析、核心专利分析、法律分析、研发重点分析、企业专利处境分析、技术处境分析、专利寿命分析、企业定位分析、引证分析等超过60个分析角度,系统通过AI智能系统对图表进行解读,只需1分钟,一键生成行业专利分析报告。