Patent ID: 7203133

Claim:
An ultrasound sensor and sensor carrier system for use with a liquid cooled welding electrode in a resistance welding system, the sensor carrier being provided with a cooling bore for carrying liquid coolant to and from the tip of the welding electrode, comprising at least one sensor ( 5 , 6 , 7 , 10 ) that transmits ultrasonic waves of a desired mode of oscillation during the detection procedure into regions to be detected and/or that detects the ultrasonic waves, wherein at least one material recess ( 2 ) is provided in a sensor carrier ( 1 ), whereby the position of the at least one recess is radially offset from a longitudinal axis of the cooling bore and is outside of the cooling bore, and wherein at least one sensor ( 5 , 6 , 7 , 10 ) is mounted in the at least one recess.