Division 4.4
United Kingdom
The front member shall be strain gauged to measure bending moments in three positions, as shown in Figure 4a, each using a separate channel. The strain gauges are located on the impactor on the back of the front member. The two outer strain gauges are located 50 ± 1 mm from the impactor's symmetrical axis. The middle strain gauge is located on the symmetrical axis with a ± 1 mm tolerance.