DCM00003 REV. 07 17
Counter: A programmable device used to monitor system cycles and alert personnel
when specific conditions are met.
Data: Any representation(s) of instructions, characters, information, or analog quantities
to which meaning may be assigned.
Default: A chosen system setting or parameter in which the system does not require
external data input. In some cases the default value will be changed based upon
equipment use.
Dynamic Spring: An, adjustable, energy storage mechanism (shock absorber) which
allows for stack follow through upon engagement of application tooling with the work
pieces to be welded.
Energy: Energy is the area beneath the ultrasonic power curve and is calculated in joules,
(Watts X Seconds = Joules). When the ultrasonic welding system is setup in the “Weld In
Energy” mode the system will deliver the amount of energy as programmed. NOTE: The
maximum (default) time allowed for delivering ultrasonic energy is five (5) seconds.
Energy Mode: A welding method in which the ultrasonic power supply is active until the
required amount of energy is delivered (See ENERGY).
Fixture: A device for positioning and or holding a component for assembly.
Force: The amount of mechanical pressure that is used to deliver, (bring down) the
mechanical actuator. This programmed force is also called TRIGGER FORCE and is used to
engage the knurl pattern into the component part(s) prior to the initiation of ultrasonic
energy.
Frequency: The number of complete oscillations per second expressed in Hertz (Hz) or
kilohertz (1 kilohertz = 1000 Hz). Typically 20 kHz or 40 kHz.
Gain: The ratio of the amplitude of motion produced by the converter and delivered by the
horn is called the gain. It is determined by the difference in mass on either side of the
nodal point.
Hand Shaking: The procedure (signal exchange) when a connection is established
between two electronic devices. A common example is the signal exchange between a
terminal and a MODEM. These signals (hardware and software) are used to control the
flow of data (start/stop) between devices.
Height: A display value, in millimeters (mm), as registered by a linear encoder upon
completion of an ultrasonic welding cycle. -- Programmable, in millimeters, with Upper
Control Limit & Lower Control Limit.
Height Encoder: A device utilized to monitor position, direction, speed, and/or velocity.
Horn: An acoustically designed metal tool that delivers mechanical energy from the
converter/ booster into the work piece. Most applications utilize half wave technology, (40
kHz = 2.2” ±, 20 kHz = 5.5” ±).
Hold Time: The amount of time after delivery of ultrasonic energy until the stack tooling
begins to retract from the component material(s).
Joint: The welded surfaces.
Linear Height Encoder: (See: Height Encoder).
Loading Meter: A meter which indicates the power drawn from the ultrasonic power
supply.
Maintenance Counter: A programmable device used to alert production personnel of the
need to review / inspect application tooling and/or the ultrasonic system for preventive
maintenance purposes. The device increments one (1) count for each system cycle. (See:
Counters).
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