Method for producing a sensor

A method for producing a sensor, comprising:

• adapting a sensor adapter of a sensor element to a first section of a process connection, wherein the process connection includes a custom-fit opening for a sonotrode;
• placing the sensor element with the sensor adaptor on an anvil;
• introducing the sensor element with the sensor adapter into the first section of the process connection such that a sensor tip of the sensor element projects beyond the process connection and the first section of the process connection and the sensor adapter form a gap;
• placing a sonotrode in the custom-fit opening of the process connection such that the gap is between the sonotrode and the anvil;
• and
• creating an ultrasonic weld connection between the first section of the process connection and the sensor adapter in the region of the gap, thereby connecting the sensor element to the process connection.