Seismometer Strong Motion (eQUAKE-NOVA)


This product is the most innovative & high-tech solution for seismic monitoring networks, developed by TDG. It includes an ultra-low noise three-component seismic internal accelerometer, which breaks the boundaries of conventional recorders. This digital system offers excellent noise performance and unmatched resolution, providing simultaneous sampled acceleration data through the ethernet interface. The product is equipped with an embedded Linux-powered single-board computer system, easily handling all the connection, configuration, data processing, data transfer, event handling, and storage tasks. The unit offers the best price-performance ratio and the most innovative design of its class.


• Earthquake Measurements / Earthquake Intensity
• Micro-zoning and Regional Seismic Maps
• Seismic Strong Motion Network
• Structural Health Monitoring
• Underground Resources, Energy, Geothermal, Mining, and Geological Research
• Micro-tremor Measurements
• Blast Measurements


Sensor And Digitization Resolution

Resolution: 29 Bit. 224 counts I g ,32 Bit Data Output

Digital Conversion: FPGA based Modulation, Filtering & Downsampling

Test & Calibration: Automatic  Self Test & Remote Sensitivity/Calibration Control

Sampling Rate: 1000.500.250. 200.100.50 Samples/Second Selectable

Sampling Type: Simultaneous

Sensor: 3 Component, Ultra-Low Noise. True-Integrated Mass Based, Electro-Mechanical, Seismic FBA Grade Accelerometer

Measurement Range: ±2g (±5g, ±15g selectable)

Frequency Range: DC – 400 Hz

Cross Axis Sensitivity< 0.002 g/g

Test & Calibration: Automatic Self Test & Remote Sensitivity/Calibration Control

Dynamic Range: 160 dB*

Self Noise < 0.2  µg rms (1- 10 Hz. Below AHNM and NHNM)

Filtering: FIR Kasier (Anti-Aliasing) Filter Fc (Default):

  • 16 Hz @50 sps
  • 36 Hz @100 sps
  • 60 Hz @200 sps
  • 83 Hz @250 sps
  • 210 Hz @500 sps
  • 460 Hz @1000 sps

(Different Fc values are possible)


Ethernet: TCP/IP, FTP, SCP.SSH Ethernet 10//100BaseT
GPRS/EDGE/3G/4.5G/ ADSL ready
Data Transfer:

  • Seedlink (MiniSeed) Server (Port & Ring Size selectable)
  • Multi-Client Support
  • Special TDG Data Protocol
  • Web Server
  • FTP Server

Configuration: Easy Configuration and File Access via Web Server
Remote Control and Configuration
Secondary Comm Interface: Serial Port (Optional)


Power Input: 9 – 36 V DC

Power Consumption: 12V/375mAh

Input & Output

Power, Ethernet, GPS: Military Type IP67 Connectors

Display: OLED LCD Status, RAM, Voltage, Internal Temperature, Trigger information

Embedded System

Real-Time Micro Controller: 32 Bit ARM Cortex-M3 100 MHz

Linux Micro Controller: ARM Cortex-AS 1GHz

RAM: 512MB

Operating System: GNU/LINUX Debian


GPS Synchronization: Direct ADC Clock Synchronization with GPS
Stonge Tempermure Enclosure

GPS Receiver: 72 Chanel, GPS, GLONASS, BeiDou, Galileo

Time Signal Accuracy: < 20 n

NTP, PTP: Available up on request

Physical & Environmental

Dimensions: 200 x 150 x 75 mm

Operating Temperature: -30 c• …+ 70 c•

Storage Temperature: -30 c• …+ 80 c•

Enclosure: IP67, Metal Enclosure



  • LVD (2014/35/EU)
  • EMC (2014/30/EU)

Local: Home (Inland) Produce Certification


  • TDG Calibration Lab.
  • Factory Calibration

Internal Recording and Triggering

Triggering Options: Level STA / LTA (Independent for Each Axis)

Continuous Recording: 15, 30,60 minutes size selectable continuous circular buffer(MiniSeed)


  • 4 GB On-Board Storage
  • 8/16/32/64 GB SLC Type Micro-SD Gard (To be specified at order)
  • External USB Memory Connection

Pre Trigger Time: 720 s


TDG Software:

  • EQ-LAB

3. Party Software:



• Unmatched Price / Performance Ratio
• Internal High-Tech Triaxial Seismic Accelerometer
• Ultra-High Resolution, Ultra-Low Noise Performance
• DC-200 Hz Standard, Optional High-Frequency Bandwidth up to 400 Hz
• ±2g, ±5g, ±15g Range Options
• Up to 1000 SPS Sampling Rate
• Direct-GPS Technology
• 160 dB Dynamic Range
• Micro-G Level Vibration Measurements
• Embedded Linux
• Ethernet TCP/IP Communication
• High Internal Storage
• Compact & Robust Design


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