 美国的核武器采用环境传感器，如加速计，加速计安装在武器的解除保险电路中，有保险和控制的双重作用。这能够在武器启动或发射并且感受到其特别的运载系统特定的环境参数之前防止电路因疏忽而运行。
 U.S. nuclear weapons employ environmental sensing devices, such as accelerometers, contained in the arming circuit of a weapon providing both safety and control. This prevents inadvertent functioning of the circuit until the weapon is launched or released and experiences environmental parameters specific to its particular delivery system.