Abstract: A method for determining motional branch current in an ultrasonic transducer of an ultrasonic surgical device over multiple frequencies of a transducer drive signal. The method may comprise, at each of a plurality of frequencies of the transducer drive signal, oversampling a current and voltage of the transducer drive signal, receiving, by a processor, the current and voltage samples, and determining, by the processor, the motional branch current based on the current and voltage samples, a static capacitance of the ultrasonic transducer and the frequency of the transducer drive signal.

Abstract: The present invention is a holder for carrying and detachably securing a side-handle baton on the belt of a policeman. The side-handle baton includes an elongated tubular club, a short side-handle and an allen-head screw. The side-handle is disposed perpendicular and rotatively coupled to the elongated tubular club by the allen-head screw which adjusts the rotational friction of the side-handle. The holder include a ring and a strap. The elongated tubular club of the side-handle baton is inserted into the ring. The strap is mechanically coupled to the ring and may be attached to the belt of the policeman. The holder also includes a post and an allen wrench. The post is disposed perpendicular and mechanically coupled to the ring. The post prevents the elongated tubular club from rotating within the ring so that the side-handle does remains relatively stationary. The allen wrench is fixedly coupled to the post. The allen-wrench adjusts the allen-head screw of the side-handle baton.