數字地震檢波器ZET7155是一款震動傳感器,把地面振蕩速度轉變成成比例電信號,振動速度值由集成的處理器自動計算得出,廣泛用于地震監測和地震研究中。
數字地震檢波器ZET7155廣泛用于地震研究中，將控制區的力學振動轉變成電信號,并傳給記錄器,記錄器稍后對數據處理而獲得地震信息。
數字地震檢波器ZET7155規格參數
| Metrological specifications | ||||||
|---|---|---|---|---|---|---|
| Measured physical value | Vibration velocity | |||||
| Frequency range | 0,5…1250 Hz | |||||
| Measurement range | 0,0006…60 mm/sec | |||||
| Displayed values | instant | |||||
| Operability check in real-time mode | synchronization and data quality control | |||||
| Measurements reliability control | sensing element integrity check, measuring circuit control
| |||||
| Technical specifications | ||||||
| Data conversion | 24-digit ADC | |||||
| Data refresh rate | 100, 200, 500, 1000, 2500 Hz | |||||
| Sensor type | integrated geophone | |||||
| Data interface | CAN 2.0 | |||||
| Data rate | 100, 300, 1000 kbps | |||||
| Operational parameters | ||||||
| Dimensions (without cable) | ?35×260 mm | |||||
| Weight (without cable) | 250 g | |||||
| Cable length | 660 mm | |||||
| Device power | from 9 up to 24 V | |||||
| Consumed power | 0,5 W | |||||
| Operational temperature range | from -40 up to +80 °C | |||||
| Electromagnetic compatibility EMC | ||||||
| IEC 61000-4-2, ESD | contact 4 kV, air 8 kV | |||||
| IEC 61000-4-4, EFT | power supply 0,5 kV, signal 0,25 kV | |||||
| IEC 61000-4-5, Surge | 500 V | |||||
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