High-Precision Dynamic Measurement
Dynamic measurement accuracy ≤1 mGal, static measurement accuracy ≤0.2 mGal, resolution ≤0.2 mGal, meeting the requirements of high-precision gravity exploration.

The ZL11-4A Gravimeter is a compact relative gravimeter independently developed by domestic research institutions. It employs inertial stabilization platform technology based on all-digital inertial sensors, combined with advanced structural designs such as topology optimization and additive manufacturing, achieving system miniaturization and lightweight construction. This instrument possesses completely independent intellectual property rights, supported by a comprehensive quality system and a professional R&D and after-sales team. It can be flexibly deployed on various unmanned survey platforms, specifically designed to provide high-precision dynamic gravity measurement solutions for fields such as marine resource exploration and geophysical surveys.

Dynamic measurement accuracy ≤1 mGal, static measurement accuracy ≤0.2 mGal, resolution ≤0.2 mGal, meeting the requirements of high-precision gravity exploration.
Based on all-digital inertial sensors, the system offers high stability with a monthly drift of ≤3 mGal.
Utilizing topology optimization and additive manufacturing, the instrument dimensions are ≤360×320×360mm, weight ≤25 kg, suitable for deployment on unmanned platforms.
Supports integration on various carriers such as unmanned underwater vehicles (UUVs), unmanned surface vessels (USVs), and unmanned aerial vehicles (UAVs) for flexible deployment.
Features real-time gravity anomaly output and raw data logging, supporting real-time display and parameter loading.
Equipped with dedicated gravity data processing software, allowing users to independently perform data processing and analysis.

Used for preliminary exploration and prospect assessment of offshore oil, gas, and mineral resources.
Supports scientific research such as marine crustal structure, geological formation modeling, and gravity field mapping.
Suitable for dynamic gravity measurement missions on unmanned carriers such as UUVs, USVs, AUVs, and UAVs.
Used for submarine pipeline route surveys and gravity background measurements at engineering sites.
| Technical Classification | Detailed Specifications |
|
Measurement Performance |
|
| Dynamic Measurement Accuracy |
≤1mGal(1σ) |
| Static Measurement Accuracy |
≤0.2mGal |
| Resolution |
≤0.2mGal |
| Monthly Drift |
≤3mGal |
| Dynamic Range |
±2.0g |
| Sampling Rate |
100Hz / 1Hz(Switchable) |
| Operating Environment | |
| Operating Temperature |
0℃ ~ +40℃ |
| Storage Temperature |
-10℃ ~ +50℃ |
| Applicable Latitude/Longitude | Accessible waters globally |
| Roll/Pitch Amplitude |
±25°/±25°(Within specified accuracy) |
| Physical Characteristics | |
| Dimensions |
≤360mm×320mm×360mm |
| Weight |
≤25kg |
| Installation Method | Baseplate Mounting |
| Interface Configuration | |
| Data Output Serial Port | RS232/RS422 selectable, max baud rate 115200 bps |
| Navigation Input Serial Port | RS232, max baud rate 115200 bps |
| Data Exchange Interface | 2x USB, supports external keyboard, mouse, and mass storage devices. |
| Power Connector / Consumption | AC 220V ±10%, 50Hz ±5% DC 24V ±20%. Cold start power consumption ≤500W, Steady-state power consumption ≤300W. |