| 摘要 |
<p>The instrument comprises a main body 1, a first 3 and a second 5 sensor of a piece of belt, each one carried by an extension 3.1, 5.1 of said body, a third sensor 9 of the belt carried by a slide 11 which can travel in a guide of the main body in direction orthogonal to said piece of belt 7, the pair comprised of the first 3 and second 5 sensor and said third 9 sensor being positioned on opposite sides of the belt and stressed toward each other by an elastic load to bend the belt; a device measuring the displacement of the third sensor 9 is comprised of a linear transducer 35 and an appropriate electronic circuit. <IMAGE></p> |
