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Power Supply (Ultrasonic): An electronic device that converts 50/60 cycle electrical
current into 20 kHz, (20,000), 40 kHz (40,000), or 60 kHz, (60,000) cycles per second
high frequency electrical energy.
Power Supply Overload (Ultrasonic): The point or limit at which the amount of power
in watts, required to keep the ultrasonic stack in motion, exceeds the available power from
the power supply. The system will go into an overload condition in order to prevent system
damage.
Pre-height: A pre-sonic inspection display, in millimeters (mm), as registered by a linear
encoder prior to initiation of the ultrasonic welding cycle. -- Programmable, in millimeters,
with Upper Control Limit & Lower Control Limit.
Presets: Welding parameters stored in the controller memory.
Pressure: The amount of mechanical pressure supplied to the ultrasonic stack assembly
while delivering ultrasonic energy to the components.
Quality Widows & Limits: Programmable values used by the system to compare actual
process data. Actual process data must be within limits or an alarm be issued.
Squeeze Time: The amount of time after the ultrasonic tooling engages the
component(s) and before delivery of ultrasonic energy. -- Adjustable from 0 - 2 seconds.
Stress: Stress is the amount of dynamic force per cross sectional area.
Time: Time is the duration of the ultrasonic, mechanical, activity. Time is a component
used to calculate the amount of ultrasonic energy delivered during a weld cycle, (Time =
Joules / Watts).
Tip: Device specially designed to grip the upper component, to be welded, and to direct
the ultrasonic energy into the work piece, (Also Horn Tip & Replaceable Horn Tip).
Tip Nut: Device specially designed to securely clamp a replaceable tip onto the horn.
Trigger Force: See Force.
Tuning: Adjusting to optimize power supply performance according to resonance
frequency, especially with regard to the horn and converter.
Velocity: The rate of motion at a specific time [velocity = distance time] also referred to
as speed.
DCM00051 REV. 10
25
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