In addition to the parameters shown in Table I, other important
aspects of comparison include cost and size. Piezoresistive
and capacitive pressure sensors are generally miniature sensors,
with a cost that ranges from a fraction of a dollar up to a few
dollars. LVDT-based pressure sensors, on the other hand, are
large bulky sensors [16]–[18], with a cost that generally exceeds
$100. The new sensor introduced here is of the miniature lowcost
variety.