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LAB 7 ISAT 303. LINEAR VARIABLE DIFFERENTIAL TRANSFORMERS. LVDT’S HOW THEY WORK!. Go to Lab 7 support. WHY USE LVDT’S? PRO”S. Relative low cost due to popularity Solid and robust, wide environment use No friction-long service life High signal to noise ratio-low impedance
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LAB 7ISAT 303 LINEAR VARIABLE DIFFERENTIAL TRANSFORMERS
LVDT’S HOW THEY WORK! Go to Lab 7 support
WHY USE LVDT’S? PRO”S • Relative low cost due to popularity • Solid and robust, wide environment use • No friction-long service life • High signal to noise ratio-low impedance • Negligible hysteresis • Short response time • Can be connected to be self protected if used outside range
WHY USE LVDT’S? CON”S • Core must contact either directly or indirectly the measured surface-sometimes not desirable or possible-can be overcome with an air-gap pneumatic servo between core and measured surface. • Dynamic measurements are limited to no more than 1/10 of LVDT frequency resulting in a 2 kHz frequency cap.
LVDT APPLICATIONS Valve Application