Abstract
A low cost device measuring the crash pulse for a car in an accident is tested both concerning accuracy and precision as well as reliability. The device called Crash Pulse Recorder (CPR) is based on measuring the movement of the mass in a spring mass system in a collision. This study presents the results of several full scale crash tests. The crash tests are made in a large range of different collision types where both offset and angled collisions were included. Most of the tests were car to car collisions but barrier tests were also performed. A brief description of its construction is also included.