Electronic weighing machine with compensation sensor and comparator

摘要

An electronic weighing system comprises a measuring sensor (14) for the amount being weighed (16) and a compensation sensor (15) exclusively registering disturbance factors (19). These sensors should be positioned close to one another so that they are affected by vibration and other disturbances of similar frequency and amplitude. The output signals (17,22) from these two sensors supply, directly or indirectly, a comparator (23) where they are reckoned up with one another. The resulting signal (25), balancing the input signals of the comparator, is fed to a regulator (24).