Sampling method for mechanical & hydraulic units in lifting system - uses samples from several known loads to produce correction curve proportional to each load

摘要

The relative curve between hydraulic pressure and load is not a straight line. The sampling method permits sampling from several points of reference to produce a correction curve proportional to each load to be measured which is placed in memory. A coefft. is automatically calculated and stored in a non-volatile memory. The coefft. represents the ratio between the raw measurement and the actual weight. Sampling is carried out using several known loads. The accuracy is directly related to the number of memorised sampling points. USE/ADVANTAGE- Complex combination of mechanical and hydraulic units; weight measurement. Provides greater precision than that offered by current systems.