正弦控制器的使用方法介绍SC-121
现在一用户的电动振动台是用 SC-121 SINE SERVO CONTROLLER 作为控制仪，由于振动台是用作产品的可靠性振动试验，在计量时出现了偏差大的不良现象。本帖最后由 wdhd 于 2016-8-10 11:08 编辑
SC-121 SINE SERVO CONTROLLER
Vibration testing suddenly got a whole lot easier.
A remarkably convenient operator interface with performance found only in the best units available make the SC-121 ideal for controlling electrodynamic shakers in almost any test situation from research and calibration to production testing.
The SC-121 is unmatched in cost / performance value.
Dual microprocessor design.
Digital signal synthesis and filtering.
Two-channel acceleration input and control.
Flexible programming with non-volatile memory.
Four independent meters display all control parameters.
Analog data outputs interface easily to computer analog inputs and x-y recorders.
DESCRIPTION
The Labworks model SC-121 Sine Servo Controller ncorporates the latest in microprocessor technology to provide an economical solution to modern sinusoidal vibration testing requirements with a remarkably conve-nient operator interface. It is designed for use with vibra-tion test systems requiring sinusoidal vibration between 2 and 10,000 Hz with acceleration levels ranging from .5 to 99.9 g pk and displacement requirements from .02 to 2.5 nches pk-pk.
The servo provides an output that will give a constant displacement and or acceleration level during a swept or stationary sine test by means of an acceleration feedback signal.
Vibration displacement is generated internally by double integration of the channel 1 servo loop acceleration signal. A dual microprocessor design ensures that all commands bring immediate control response without degrading the performance of the control system.
Crystal controlled digital signal synthesis and filtering insures that the Labworks model SC-121 has performance specifications found only in the best controllers available.
The SC-121 has two acceleration input channels to facilitate tests requiring the comparison of two signals, such as calibration or transmissibility tests. The difference output makes transmissibility determination and calibration tests as easy as running a simple sine test.
Tests using large head shakers, slip tables or large fixtures
不知SC-121能否做闭环的振动控制的振动试验吗
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