| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an apparatus for determining an optimal operating condition in order that focused operation related values can satisfy predetermined conditions while focusing on the operation related values such as Power saving and Low noise in an electro-dynamic vibration testing apparatus, and considering the operation limit of a vibration generator. Ž<P>SOLUTION: The operating condition determination apparatus 100 measures an exciting current and a drive current under the state that a predetermined vibration is applied to a specimen 20, and calculates a required exciting force which the vibration generator 1 should generate. When the exciting current is variously changed, a required drive current needed to obtain the required exciting force is calculated based on the calculated required exciting force. Further, the temperatures of the exciting coil 4 and drive coil 10 are estimated when the vibration generator 1 is operated at each expected exciting and drive current varying the cooling capacity of a cooling blower 16 for each exciting current, and the power consumption in each coil and the power consumption of the cooling blower 16 are calculated. Then, within conditions which satisfy temperature conditions, the optimal operating condition based on the focused operation related values is selected. Ž<P>COPYRIGHT: (C)2010,JPO&INPIT Ž
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