Main features(主要性能) | |
High resolution and precision(高精度) | |
Low noise(低噪声) | |
Low temperature offset(低温漂) | |
Low power consumption(低功耗) | |
Convenience of installation and service(安装维修方便) | |
Graphical display with touch screen(触摸屏图形显示) | |
Internal real time clock(内部实时时钟控制) | |
32 GB SD card(32G SD卡) | |
Internal real time clock(内部实时时钟控制) | |
Satellite synchronization(卫星同步) | |
USB outputusb开关量输出板 | |
3 years operational guarantee3年运行保证 | |
Waterproof housing提供防水外壳 |
LEMI-018是用于地磁场观测的高精度专业矢量磁力仪,它由两部分组成:主机和三分量磁通门磁力仪。该仪器的最大优点是其极高的稳定性(低漂移)、高分辨率和高精度,这使它特别适合于固定台站的长期连续观测;其次,小巧轻便,功耗低,这又使它适合于流动台站和复杂地区观测;第三,GPS同步,可进行大范围同步阵列观测;第四,开机即记的傻瓜方式使得操作极为简便。
MAIN TECHNICAL PARAMETERS(主要技术指标) | |
Frequency band(频率范围) | DC-0.5 Hz |
Sample rate(采样率) | 1 per s |
SD card(32g) | 32 GB |
Digital output and control(输出输入端口) | USB |
GPS timing, coordinates and altitude determination(GPS定时,坐标和高度测定) | |
Operating temperature range(温度范围) | -20 -+ 60° C |
Power supply(电源) | (5-20) V |
Power consumption(功耗) | < 0.5 |
Weight (主机重量) | 2.0 kg |
3-component Flux-Gate Magnetometer(磁通门技术参数) | |
Measured range at analog output(测量范围) | ±70000 nT |
Frequency band for magnetometer(频带范围) | DC-10 Hz |
Transformation factor of analog output(模拟输出因子) | 20 µV/nT |
Noise level at 1 Hz(噪音水平(1Hz时)) | ≤10 pT/√HZ |
Temperature drift(温度漂移) | < 0.3 nT/°C |
Components orthogonality error (without compensation)(三分量方位正交误差) | < 30 min of arc |
Operating temperature range(工作温度) | -20 - + 55° C |
Power consumption(功耗) | <0.5 W |
Power supply(电源) | 5 V ±0.1V |
Weight: sensor with 20 m cable(磁通门重量)(带20米电缆的传感器) | ~5.0kG |