A novel PVDF based high-Gn shock accelerometer

High-Gn accelerometers are always used in explosion and shock measurement. The principle and solution of high-Gn piezoelectric accelerometers are introduced in detail. Focusing on piezoelectric material, structure model and assembling techniques, we investigated high-Gn accelerometers with compression mode, with an energy converter made of novel piezoelectric material PVDF. The dynamic range and operating frequency range are within 50000 Gn and 15 kHz respectively. The shock tests indicated that the characteristics of waveforms acquired from test were similar to those of ready commodities. It can be used for specific test conditions during explosion and shock process.