3.运放电流跟激振力之间的关系是怎样的?

功放相关问题

In some cases, the force and current may track together but this is not always the case. Therefore, it is important to always measure the actual force imparted to the structure during shaker testing when measuring frequency response functions. A dynamic piezoelectric force transducer should be used, such as a PCB 288D01 impedance head (ideal for modal driving point measurements) or PCB 208 series force transducer, for accurate force measurements.

在某些情况下,力和电流可能吻合在一起,但不总是这样。所以,测量频响函数时,在激振器测试过程中,总要测量实际传递到结构上的力,这很重要。为了得到准确的力测量结果,应该使用动态的压电力传感器,例如PCB 288D01阻抗头(非常适合于模态驱动点测量)或者PCB 208系列力传感器。