Patent ID: 11969817
Assignee: LISA DRÄXLMAIER GMBH
Field: Chemical engineering (Chemistry)
Classification: CPC B  G | IPC B

Claim 0:
1. A device to determine a state of an ultrasound welding process using an ultrasound tool, the device comprising:
a sensor device configured to detect an electric control signal of the ultrasound tool;
an evaluation unit configured to:
determine a signal property of the electric control signal; and
determine the state of the ultrasound welding process based on a reference signal profile and on the determined signal property;

a first connection configured to be connected to an output of an ultrasound generator;
a second connection configured to be connected to a signal input of the ultrasound tool;
a signal path electrically connecting the first connection and the second connection, wherein the sensor device is configured to measure the electric control signal along the signal path;
a switching element disposed in the signal path and configured to interrupt the signal path to electrically separate the first connection from the second connection; and
a signal generator configured to generate a control signal for the ultrasound tool and to control the ultrasound tool when the switching element interrupts the signal path.