HDA446T A new generation of digital MEMS dynamic tilt sensor. It can measure the attitude parameters (roll, pitch, and azimuth) of a moving carrier, and suitable for tilt angle measurement under motion or vibration.HDA446T has a built-in high-precision acceleration and gyro sensor, and integrates the Kalman filter algorithm, which can measure the real-time motion data of the carrier under motion or vibration. The signal output modes such as RS485 / RS232 / TTL are optional, and the scalability is strong.
| HDA446T | Condition | Parameter | |
| Measurerange | - | Roll±180°, pitch±90°, azimuth±180° (initial value at power-down is 0°) | |
| Measureaxis | - | X axis / Y axis / Z axis | |
| Roll&PitchStatic accuracy1) | @25℃ | ± 0.05° | |
| Roll&PitchDynamic accuracy(rms) | @25℃ | ± 0.1° | |
| Gyro | range | - | ±300°/s |
| Zero bias stability (10sSmooth) | - | 8.5°/h | |
| Angle random walk coefficient(Allan) | - | 0.25°/sqrt(h) | |
| Acceleration | range | - | ±4g/±16goptional |
| Bias stability(10s mean) | - | 0.02mg | |
| Bias instability(Allan) | - | 0.005mg | |
| Speed random walk coefficient(Allan) | - | 0.005m/s/sqrt(h) | |
| Zero point temp. Coefficient2) | -40~85℃ | ±0.01°/℃ | |
| Sensitivity temp. Coefficient3) | -40~85℃ | ≤100ppm/℃ | |
| Power-on startup time | ≤3.5S | ||
| Response time | 0.01S | ||
| Output signal | RS485/RS232/TTL | ||
| Electromagnetic compatibility | According to EN61000 and GBT17626 | ||
| MTBF | ≥98000 hours / time | ||
| Insulation resistance | ≥100 Megohm | ||
| Impact resistance | 100g @ 11ms,3 axial direction (half sinusoid) | ||
| Anti-vibration | 10grms/10~1000Hz | ||
| Waterproof level | Standard IP67, optional IP68 and corrosion-resistant IP68 protection level | ||
| Weight | ≤165g(Without cable) | ||
| 1)Accuracy: refers to the root mean square difference between the measured and actual angle value by multiple measurements (>16 times) under normal temperature. 2)Zero temp.drift coefficient: the change rate of the indication value relative to normal temperature within the rated operating temperature range of the sensor at the zero degree. 3)Sensitivity temp.drift coefficient: The percentage change rate with temperature of the full-scale indication relative to the full-scale indication at room temperature of the sensor in its rated operating temperature range. | |||

L83×W47×H22.5mm
L64×W39×H6.5mm
4 M4 screws
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