General Description
DCM250B is a low-cost 3D electronic compass (Single board), using USA patented technology of hard magnetic and soft magnetic calibration algorithm, make the compass eliminate the magnetic influence through calibration algorithm in the magnetic interference environment ,DCM250B integrated three-axis fluxgate sensor, in real time solver heading through the central processor, and using 3-axis accelerometer to proceed heading compensation for the wide range tilt angle, to ensure the compass still can provide high-precision heading data when the tilt angle up to ±85°.Electronic compass integrated high-precision MCU control, various output mode, standard interfaces including RS232/RS485/TTL and other interfaces, and accept other communication interface customization.
DCM250B with small size, low power consumption, can be used for the antenna stability, vehicles, systems integration and other more fields , high shock resistance, high reliability makes the compass work properly in extremely harsh environments, and is more suitable for nowadays miniaturization high-precision measurement integrated control system.
Electrical Characteristics
| Compass heading parameter |
The best heading accuracy |
0.8° tilt <10° |
| 1.5° tilt <30° |
| 2.0° tilt <40° |
| 3.0° tilt <70° |
| Resolution |
0.1° |
| Compass tilt parameter |
Pitch accuracy |
0.1°<15°（Measuring range） |
| 0.2°<30°（Measuring range） |
| 0.3°<60°（Measuring range） |
| 0.4°<90°（Measuring range） |
| Pitch tilt range |
±85° |
| Roll accuracy |
0.1°<15°（Measuring range） |
| 0.2°<30°（Measuring range） |
| 0.3°<60°（Measuring range） |
| 0.4°<90°（Measuring range） |
| Roll tilt range |
±85° |
| Resolution |
0.1° |
| The best compensation angle range of compass tilt |
<40° |
| Calibration |
Hard iron calibration |
Yes |
| Soft iron calibration |
No |
| Magnetic field interference calibration method |
Plane rotation in a circle (2D calibration) |
| Physical features |
Dimension |
L33×W27×H8mm |
| Weight |
20g |
| RS-232/RS485/TTL interface connector |
5PINconnector |
| Interface features |
Start delay |
<50MS |
| Maximum output rate |
20Hz/s |
| Communication rate |
2400到19200baud |
| Output format |
Binary high performance protocol |
| Power |
Power supply |
（Default）DC+5V |
| |
（Customized）DC9～36V |
| Current(Maximum) |
45mA |
| Ideal mode |
35mA |
| Sleep Mode |
TBD |
| Enviroment |
Operating range |
-40℃～+85℃ |
| |
Storage temperature |
-40℃～+100℃ |
| |
Resistance shock performance |
2500g |
| Electromagnetic compatibility |
According to EN61000 and GBT17626 |
| MTBF |
≥40000 hours/times |
| Insulation resistance |
≥100M |
| Shock resistance |
100g@11ms、3Times/Axis(half sinusoid) |
| Anti-vibration |
10grms、10～1000Hz |
| Weight |
30g(without cable) |
Dimension
Electrical Connection
| Line color function |
PIN1RED |
PIN2N/C |
PIN3BLACK |
PIN4GREEN |
PIN5YELLOW |
|
Vcc 5V
Power supply Positive
|
|
GND
Power Negative
|
RS232(TXD)
Or RS485(D-)
|
RS232(RXD)
Or RS485(D+)
|
Specification Download
