压电测量技术:企业成功的关键因素


Global competition in the industrial manufacturing sector is increasing the requirements for quality and precision as time goes on. What is the most efficient and cost-effective way of optimizing and controlling the entire production chain? For many production enterprises, the solution has proven to be integrated monitoring of dynamic processes – more specifically, with the help of piezoelectric sensors. The vision of Industry 4.0 is already becoming a successful reality today in numerous industrial applications – in sectors such as automobile manufacturing, medical technology and electrical engineering. Unprecedented optimization of all production processes is now possible thanks to the advance of digitization and the growth of machine and system networking. Consistent control of the production chain – with zero-defect production as the goal – is essential for any modern production business to hold its own in the market of the future. Just a few years ago, virtually all products were still being inspected offline – i.e. after the manufacturing process as such. Nowadays, by contrast, more and more products are monitored during the manufacturing process – or 'inline' – as a way of avoiding unnecessary costs. For joining, assembly and testing processes, sensor technology based on the piezoelectric principle is a fundamental factor in optimizing production processes with zero-defect production as the goal. This technology is outstandingly suitable for measuring physical variables such as force, pressure, acceleration and torque.
Inline process monitoring – for example, with the maXYmos monitoring system from Kistler – offers quality assurance for medical devices.
Inline process monitoring – for example, with sensor technology and the maXYmos monitoring system from Kistler – is the key to achieving a high standard of quality assurance for medical devices.

对质量和精确度的要求越来越严格。究竟什么才是优化和控制整个生产线的最高效经济的方式?对于许多生产企业而言,统一监测动态生产过程是最有效的解决方案,具体而言,就是采用压电传感器进行统一监测。

工业4.0的愿景已经在当今众多的工业应用领域,如汽车制造、医疗技术和电气工程等领域成为现实。由于数字化、机器和系统网络的发展,所有生产过程的空前优化成为可能。对生产线实行统一控制,从而实现零缺陷生产,对任何现代生产企业在未来市场占有一席之地都是必不可少的。

仅在几年前,几乎所有产品还是在线下(即制造过程结束后)进行检测。如今,越来越多的产品在制造过程中或线上就可以进行监测,从而避免了不必要的开支。对于压装、装配及测试过程而言,基于压电原理的传感器技术是优化这些生产过程实现零缺陷生产目标的根本要素。这项技术非常适合用于测量力、压力、加速度、扭矩等物理变量。

压电传感器的基本原理

这类传感器的物理原理是皮埃尔·居里和雅克·居里(Pierre  Curie和Jacques Curie )于1880年发现的“压电效应”,即压电材料在机械载荷作用下会产生电荷。1950年,当时Walter P. Kistle申请了压电信号电荷放大器专利,迈出了压电效应应用的重要一步。