Patent ID: 7733219

Claim:
A sensor assembly, comprising: an elongated article secured to a vehicle body; a sensor element comprised of at least a first elongated piezoelectric element stacked above and spaced from a second elongated piezoelectric element disposed along a longitudinal direction of the elongated article; a first member disposed further from the vehicle body than the sensor element and having at least first and second load-transmitting parts extending toward the sensor element; and a second member disposed between the first member and the elongated article of the vehicle body for supporting the sensor element such that the first elongated piezoelectric element is disposed on an upper portion of the second member and the second elongated piezoelectric element is disposed on a lower portion of the second member, wherein the first member and the second member are positioned relative to each other in a vertical direction using a positioning part, whereby the first load-transmitting part is made to face the sensor element in a vertical position corresponding to that of the first elongated piezoelectric element and the second load-transmitting part is made to face the sensor element in a vertical position corresponding to that of the second elongated piezoelectric element.