Model IGU-16HR -Seismic Data Acquisition Node

SmartSolo IGU-16HR contains an electromagnetic conversion system that generates millivolt signals proportional to the vibration intensity of the measured medium (usually soil).The sensor is rigidly connected with the ground through the metal tail vertebrae. The vibration of the earthquake drives the internal coil of the sensor to move around the magnet, and the magnetoelectric conversion occurs, and the coil generates the induced electromotive force;We provide GPS clock signal to ensure the real and effective value of each sample point, and the temperature sensor measures temperature to achieve the pursuit of high-precision data quality.

Seismic Data Loggers
(@ 2ms sample interval, 31.25 Hz, 25℃, unless otherwise indicated)
ADC resolution: 24 bits
Sample intervals: 0.25、0.5、1、2、4 ms
Preamplifier Gain: 0dB to 36 dB in 6 dB steps
Anti-alias Filter: 206.5 Hz @ 2ms (82.6%of Nyquist) Selectable - Linear Phase or Minimum Phase
DC blocking filter: 1Hz to 10Hz, 1Hz increments or DC Removed
GPS Time Standard: 1ppm
Timing Precision: ±10μs,GPS Standard
Maximum Input Signal: 2.5Vpeak @  Gain 0dB
Equivalent Input Noise: 0.18 μV 2ms  Gain 18dB(Typical)
Instantanteous Dynamic Range: 125dB@ 2ms Gain 0dB
Total Harmonic Distortion: <0.0002% @  Gain 0dB
Common Mode Rejection: ＞100dB
 Gain Accuracy: <0.5%
System Dynamic Range: 145dB
Frequency Response: 0~1652Hz

Sensor Specifications
DT-SOLO 5Hz
Natural Frequency: 5Hz
Coil Resistance: 1850Ω
Damping: Open Circuit Damping:0.6
43Ω Damping:0.7
Sensitivity: Open Circuit natural voltage Sensitivity:80V/m/s (2.03V/in/s)
Distortion: <0.1%
Remark: All parameters are specified at +22℃in the vertical position unless otherwise stated.
DT-SOLO 10Hz
Natural Frequency: 10Hz
Coil Resistance: 1800Ω
Damping: Open Circuit Damping:0.51
43Ω Damping:0.7
Sensitivity: Open Circuit Inherent VoltageSensitivity:85.8V/m/s (2.18V/in/s)
Distortion度: <0.1%
Remark: (@ 2ms sample interval, 31.25 Hz, 25℃, unless otherwise indicated)