Introduction
The ER-MNS-08 Single-Axis MEMS North Seeker (hereafter referred to as the Gyro North Seeker) is primarily designed for rapid and autonomous determination of true north direction. It employs a navigation grade MEMS gyroscope to measure the Earth's rotational rate. This signal is then processed to calculate the angle between the gyro's primary axis and true north, providing accurate azimuth information for the carrier platform.
The device is an integrated mechatronic system, comprising a MEMS gyroscope, accelerometer, mechanical rotation control mechanism, and an embedded computer.
Key Features
- High north‑seeking accuracy:12°~1°·secψ (optional)
- Wide Attitude Measurement Range: -30° to +30°
- Single-axis rotation north-seeking architecture:offers high cost-effectiveness, economically and efficiently meeting the needs of cost-constrained applications
- Anti-interference:autonomous north-seeking independent of external signals, unaffected by surrounding magnetic fields or other environmental disturbances
- Compact & Lightweight:compared with traditional FOG and DTG single‑axis north‑seekers,its dimensions is 56×56×75mm, weight ≤360g
- Modular design:suitable for large‑scale deployment
- Secondary development:can be developed into a low‑cost drill rig alignment system
Applications
- Intelligent tunneling in coal mine roadways and directional drilling
- Challenging engineering projects such as longwall mining and deep shaft penetration
- Integration into engineering equipment like directional drilling rigs and bridge erection machines
- Emergency response and other scenarios requiring rapid north finding
Specifications
| Model No. | ER-MNS-08A | ER-MNS-08B | ER-MNS-08C | ER-MNS-08D |
| North seeking accuracy | 1°secψ | 0.5°secψ | 0.25°secψ | 0.12°secψ |
| Attitude accuracy(1σ) | 0.1° | |||
| Measurement range of north seeking | 0°~360° | |||
| Measurement range of attitude | -30°~+30° | |||
| North seeking time | 180s | |||
| Voltage and environment | ||||
| Working temperature | 5℃~+55℃ | |||
| Power supply | DC9V | |||
| Output interface | RS422 | |||
| Physical characteristics | ||||
| Dimensions (mm) | 56×56×75 | |||
| Weight (g) | ≤360 | |||



