| 摘要 |
A gap measuring tool 300 for measuring the size of a gap (fig 6, 640) comprising a body 110 with a first surface 112 and a second surface (fig 3B, 114) and a piezoelectric material 120, a first electrical contact 130 to the piezoelectric material and a second electrical contact (fig 3B, 140) to the piezoelectric material, wherein a voltage is induced between the first electrical contact and the second electrical contact by a compressive force (fig 1C, Fc) applied to the body of the gap measuring tool via the first surface and second surface of the gap measuring tool. The compressive force induces a voltage between the first and second electrical contacts that are connected to a measuring unit 310 via a first electrical coupling 330 and second electrical coupling (fig 3B, 340) respectively, to display the measurement on the display 312. The measuring unit also has a target gap indicator 314 and a user input interface 316. This tool can be used to measure the gap of the valve clearance between the valve rocker arm (fig 6, 610) and valve bridge (fig 6, 620) of an internal combustion engine. |
