摘要
分析了EE1- 10 0型力标准机砝码加载机构的工作原理和砝码挂起后间距偏差对定位检测的影响 ;提出了用光电编码测距方式取代原固定位置检测的方式 ;设计了测量电路以及一种符合EE1- 10 0型力标准机工作特点的倍频鉴相电路并给出了逻辑分析结果 ;设计了置数计数定位电路 ,使系统装调简化 ,工作可靠。
The operational principle of the poise loading mechanism of EE1-100 normative force measuring instrument and the effect of the space error between loaded poises are analyzed in this paper.The range measuring method based on photoelectric coding displacement is proposed to replace the original method based on fixed position detection,and the measuring circuit and the quadruple phase-demodulation circuit that is suitable for EE1-100 instrument are designed.The result of logic analysis is given.In addition,the preset counting positioning circuit is designed to simplify the installation and testing of the system and to make the operation reliable.
出处
《自动化仪表》
CAS
2005年第3期55-57,共3页
Process Automation Instrumentation
