Device and method for measuring the tension in a tensioning belt

A device for measuring the tension in a tensioning belt, comprising:

• a tensioning belt;
• a retaining device;
• an elastically deformable spring element having opposite ends and being secured by the retaining device on which a section of the tensioning belt can apply a tensioning force and elastically deform the spring element;
• an electronic sensor unit comprising:
• a sensor system that measures the deflection of the spring element and generates a data signal;
• a transmitter for transmitting the data signal;
• a microprocessor that is connected to the sensor system and to the transmitter;
• and
• an energy source for supplying the electronic sensor unit with power;
• and
• an electronic receiving unit for receiving the data signal from the transmitter, comprising:
• a receiver;
• a display for displaying the data signal;
• and
• a microprocessor that is connected to the receiver and to the display, the oppositely situated ends of the spring element being movable closer to one another when the tensioning force increases, and the sensor system is situated at the opposite ends of the spring element.