Abstract: The invention relates to a vibrating wire sensor (20, 30, 40 and 50) having a vibrating wire (21, 31, 41 and 51), which is tensioned accordingly differently under measurement conditions of a current factor to be detected, and having an exciter arrangement for exciting the vibrating wire (21, 31, 41 and 51) in the range of the respective natural frequency thereof, wherein the exciter arrangement has at least one exciter layer (22, 32, 42 and 52) provided on a longitudinal portion of the vibrating wire (21, 31, 41 and 51), having a piezoelectric activation layer (33, 46 and 54), which has a different length depending on the activation state, and thus creates a correspondingly different vibration position of the vibrating wire (21, 31, 41 and 51). A vibrating wire sensor can thus be designed to be more robust, wherein the power consumption is additionally considerably less. The invention further relates to a vibrating wire having an exciter layer (22, 32, 42 and 52), which has a piezoelectric activation layer.

Abstract: The invention relates to a method for calculating the weight of a load moving on scales (1). According to the method, a load signal of the scales is determined over a period of time using the speed of the load, and several partial load signals (TL1, TL2) are used, the total thereof providing the load signal, a first partial load signal (TL1) displaying a maximum value as long as the load is fully on the weighing section of the scales (1), and a second partial load signal (TL2) displaying a minimum value as long as the load is completely removed from the weighing section of the scales (1), and the speed of the movement of the load is determined from said partial load signals (TL1 and TL2). The invention also relates to scales for carrying out said method, comprising two weighing units (10, 11) with flexible deformation elements on which deformation sensors (7, 15), which generate the partial load signals (TL1,TL2), are arranged.

Abstract: The invention relates to a vibrating wire sensor (20, 30, 40 and 50) having a vibrating wire (21, 31, 41 and 51), which is tensioned accordingly differently under measurement conditions of a current factor to be detected, and having an exciter arrangement for exciting the vibrating wire (21, 31, 41 and 51) in the range of the respective natural frequency thereof, wherein the exciter arrangement has at least one exciter layer (22, 32, 42 and 52) provided on a longitudinal portion of the vibrating wire (21, 31, 41 and 51), having a piezoelectric activation layer (33, 46 and 54), which has a different length depending on the activation state, and thus creates a correspondingly different vibration position of the vibrating wire (21, 31, 41 and 51). A vibrating wire sensor can thus be designed to be more robust, wherein the power consumption is additionally considerably less. The invention further relates to a vibrating wire having an exciter layer (22, 32, 42 and 52), which has a piezoelectric activation layer.

Abstract: The invention relates to a method for calculating the weight of a load moving on scales (1). According to the method, a load signal of the scales is determined over a period of time using the speed of the load, and several partial load signals (TL1, TL2) are used, the total thereof providing the load signal, a first partial load signal (TL1) displaying a maximum value as long as the load is fully on the weighing section of the scales (1), and a second partial load signal (TL2) displaying a minimum value as long as the load is completely removed from the weighing section of the scales (1), and the speed of the movement of the load is determined from said partial load signals (TL1 and TL2). The invention also relates to scales for carrying out said method, comprising two weighing units (10, 11) with flexible deformation elements on which deformation sensors (7, 15), which generate the partial load signals (TL1,TL2), are arranged.