4 results about "Contact duration" patented technology

The invention relates to a method for determining a contact wear of a switching device (1) comprising an anchor (2) that is moved by means of a magnetic drive (3) in a tripping event, at least one fixed contact (7) and at least one moveable contact (8) mechanically connected to the anchor (2). The method comprises the steps of: - determining a contact time (10) when fixed contact (7) touches the moveable contact (8), - determining an inductance (11) of the magnetic drive (3) at the contact time (10), - determining the contact wear by comparing an initial inductance (12) with the inductance (11) at the contact time (10). Furthermore, a switching device (1) is specified.

A golf ball having contact time, CT143 of greater than or equal to about 400 microsecs, a Coefficient of Restitution, COR143 of greater than or equal to about 0.720, an Initial Velocity (IV) of greater than or equal to about 255 ft / sec and a relative ratio, RR80 / 127 or RR80 / 125 or RR80 / 123 each of greater than or equal to about 1.01, or a relative ratio, RR90 / 127 or RR90 / 125 or RR90 / 123 each of greater than or equal to about 1.03.

The present application provides a lift pin contact position adjustment method, a lift pin contact position detection method, and a substrate placement mechanism that can automatically and with high precision adjust the contact position of a lift pin with respect to a substrate placed on a substrate placement table. The contact position adjustment method includes the steps of: placing a substrate on the substrate placement table; in a state in which the substrate is adsorbed by applying a voltage to an electrode of an electrostatic chuck; generating a torque waveform that indicates the time variation of the torque of a motor when moving the front end of the lift pin from a lower end position below the placement surface to an upper end position above the placement surface, for each of a plurality of voltages; calculating a contact time point that is the time at which the lift pin contacts the substrate, from the plurality of torque waveforms; calculating the contact position from the contact time point and the speed of the motor; determining whether the contact position is within an appropriate range; and automatically adjusting the contact position if it is determined that the contact position is outside the appropriate range.