BeStar FT-27T-3.4A1-015 - Manual (Page 4)

3.3.Insulation Resistance:
An insulation resistance shall be measured by using an insulation resistance
meter,suach as DF2863 insulation resistance meter.
BESTAR ELECTRONICS INDUSTRY CO.,LTD
6 5
08/05/07
Date
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李红元
Drawn
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Note
Checked by:
Approved by:
Drawn by:
Date:
张秀琴
耿 亚
李红元
08/05/07
FT-27T-3.4A1-015
Piezo Ceramic Element
Page:3 of 7 BDRG NO: BS/TEY01.249A
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3.2.Capacitance:
An electrostatic capacity capacitance shall be measured at 120Hz by using LCR meter, such as DF2812A
LCR numerical bridge or equivalent.the part shall be clamped at the node .
3.1.Resonant Frequency/Resonant Impedance
piezoelectric diaphragm shall be clamped at a node point as shown in following figure to be free from any
mechanical stress,and measured its resonant frequency and resonant impedance by using
YW2788 synthesis parameter test apparatus or equivalent
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3.Measuring Method
FT-27T-3.4A1-015
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