Noise Trauma Induced by a Mousetrap-Sound Pressure Level Measurement of Vole Captive Bolt Devices

作者：Frank Matthias^*; Napp Matthias; Lange Joern; Grossjohann Rico; Ekkernkamp Axel; Beule Achim G

来源：Journal of Forensic Sciences, 2010, 55(3): 774-778.

DOI：10.1111/j.1556-4029.2010.01352.x

• forensic science
• trauma mechanic
• noise trauma
• blank cartridge
• vole captive bolt device
• working equipment

While ballistic parameters of vole captive bolt devices have been reported, there is no investigation on their hazardous potential to cause noise trauma. The aim of this experimental study was to measure the sound pressure levels of vole captive bolt devices. Two different shooting devices were examined with a modular precision sound level meter on an outdoor firing range. Measurements were taken in a semi-circular configuration with measuring points 0 degrees in front of the muzzle, 90 degrees at right angle of the muzzle, and 180 degrees behind the shooting device. Distances between muzzle and microphone were 0.5, 1, 2, 10, and 20 m. Sound pressure levels exceeded 130 dB(C) at any measuring point within the 20-m area. Highest measurements (more than 172 dB[C]) were taken in the 0 degrees direction at the 0.5-m distance for both shooting devices proving the hazardous potential of these gadgets to cause noise trauma.

• 出版日期2010-5