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[China]
Trade Verify
Address: i City, No11, TangYan South road, Yanta District, Xi'an,Shaanxi,China.
Contact name:Evelyn Wang
Xi'an Kacise Optronics Co.,Ltd. |
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Verified Suppliers
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● Wide operating temperature range
● Wide bandwidth
● Small size
● Fast start
● High precision
● High reliability and high robustness
● Accurate measurement in harsh environment
| Parameter | KSIMU03D | |
| Power supply parameter | ||
| Voltage | 5V | |
| Power consumption | 1.5W | |
| ripple | 100mV | |
| Product performance | ||
| Weight | 55g | |
| Pitch Angle accuracy(-90°~+90°) | <0.1° | |
| Roll Angle accuracy(-180°~+180°) | <0.1° | |
| course angle(-180°~+180°) | --° | |
| Gyroscope | Measuring range (customizable) | ±500°/s |
| Zero bias stability(@Allan variance) | 0.5°/h | |
| random walk | 0.15°/√h | |
| Zero bias repeatability | 10°/h | |
| Zero bias acceleration sensitivity | 1°/h/g | |
| Scale factor nonlinearity (room temperature) | 200ppm | |
| Scale factor repeatability (room temperature) | 200ppm | |
| cross coupling | 0.1% | |
| bandwidth | 250Hz | |
| Accelerometer | Measuring range (can be customized) | ±30g |
| Zero Bias stability (Allan Variance @25 ℃ ) | 50ug | |
| Zero bias error in the whole temperature range | 10mg | |
| random walk | 0.2m/s/√h | |
| Zero bias repeatability | 0.5 | |
| Scaling factor repeatability | 300 | |
| Scale factor non-linearity | 100 | |
| bandwidth | 100 | |
| Environment | ||
| Operating temperature | -45℃～+85℃ | |
| Storage temperature | -55℃～+105℃ | |
| Vibration | 10~2000Hz, 6.06g | |
| impact | 5000g,0.1ms | |
KSIMU03D inertia unit is shown in Figure 4
Figure 4 Appearance of the IMU
The KSIMU03D is installed with three Φ4.4 through holes and three M4 screws (spring washer and flat washer). When the connector is installed, the plug should be locked with the socket and the cable should be fixed. It is recommended that the flatness and verticality of the installation surface relative to the base plane be no more than 0.02mm, no more than 0.04mm, and no more than 0.8μm of the surface roughness.
Spatial Coordinates:
Right hand rule principle 1
The MEMS IMU contains three axial spatial coordinate systems, namely X, Y and Z. The X-axis points to the direction of the electrical connection interface, the Y-axis points to the left side of the IMU, and the Z-axis points to the top surface of the IMU, as shown in Figure 1.
Figure 1 IMU Spatial coordinate
The installation of the IMU must match the axis of the coordinate system, otherwise the measured angular velocity data is not accurate. Following the "Right Hand Rule principle 1", you can quickly assign and determine the axis of the coordinate system. Extend your right hand and expand your thumb, index finger, and middle finger respectively. The thumb is pointing in the X-axis direction, the index finger is pointing in the Y-axis direction, and the middle finger is pointing in the z-axis direction, as shown in Figure 2.
Figure 2 Principle 1 of the right-hand rule
Right Hand Rule Principle 2
The three-degree-of-freedom gyroscope in the IMU measures angular velocities in three directions. Following the "right hand rule principle 2", the angular velocity direction of the axis rotation can be quickly determined. Stretch out the right hand and spread the thumb. The direction of the thumb is the axial direction, and the direction of the other four fingers is the direction of the axial rotation of the thumb, as shown in Figure 3.
Figure 3 Principle 2 of the right-hand rule
Definition of heading Angle, pitch Angle and rolling Angle
Pitch angle definition: Taking the X- axis as the rotation axis, counterclockwise is positive, horizontal is zero, and the range is [-90º, 90º].
Roll angle definition: Taking the Y axis as the rotation axis, counterclockwise is positive, horizontal is zero, and the range is [-180º, 180º].
Course angle definition: Taking the Z axis as the rotation axis, counterclockwise is positive, north is zero, and the range is [-180º, 180º].
The electrical connector model of KSIMU03D is J30JE-15ZKN-J, and the corresponding connector model is J30J-15TJ. Contact specific distribution is shown in the table below.
| Contact number | Pin definition | type | illustrate |
| 8 | VSUP | SUPPLY | Product power supply positivel, DC regulated power supply |
| 15 | GND | SUPPLY | Product ground, power ground and serial port ground |
| 10 | RxD+ | INPUT | Product RS422 receiving interface positive end |
| 2 | RxD- | INPUT | Product RS422 receiving interface negative terminal |
| 9 | TxD+ | OUTPUT | Product RS422 output interface positive end |
| 1 | TxD- | OUTPUT | Product RS422 output interface negative terminal |
Communication protocol
The communication interface is RS422, with 8 data bits, 1 start bit, 1 stop bit, and no verification; the high byte is first and the low byte is last. The default baud rate at power-on is 460800, and the data update frequency is 500Hz.
| Number of bytes | name | Zoom | units | Remark |
| 0-1 | Frame header | 0xAA55 | ||
| 2-5 | Gyro X | 1000 | °/s | X gyro angular rate |
| 6-9 | Gyro Y | 1000 | °/s | Y gyro angular rate |
| 10-13 | Gyro Z | 1000 | °/s | Z gyro angular rate |
| 14-17 | Accelerometer X _ | 100000 | g | X acceleration |
| 18-21 | Accelerometer Y | 100000 | g | Y acceleration |
| 22-25 | Accelerometer Z _ | 100000 | g | Z acceleration |
| 26-29 | Pitch angle | 100 | ° | Raise your head to be positive |
| 30-33 | Roll angle | 100 | ° | Right leaning is positive |
| 34-37 | Course angle | 100 | ° | Counterclockwise is positive |
| 38-41 | Temperature | 100 | ℃ | |
| 42 | Count | 0-255 Count | ||
| 43 | Effectiveness | The cumulative sum of all bytes 0-42 takes the lower 8 bits |
Setup command
1 Setup preparation
Stop output
*0RM=D (Enter)
Start output
*0RM=U (Enter)
2 Set baud rate
*BAUD=1 (Enter) Set the baud rate to 115200
*BAUD=2 (Enter) Set the baud rate to 230400
*BAUD=3 (Enter) Set the baud rate to 460800
*BAUD=4 (Enter) Set the baud rate to 921600
3 Set output frequency
*FREQ=1 (Enter) Set the output frequency to 100Hz
*FREQ=2 (Enter) Set the output frequency to 125Hz
*FREQ=3 (Enter) Set the output frequency to 250Hz
*FREQ=4 (Enter) Set the output frequency to 500Hz
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Our Electronic Gyroscope Sensor is designed to provide precise motion sensing in a variety of applications. Our product technical support and services are dedicated to ensuring that you can integrate and use our gyroscope sensor effectively in your projects.
Technical Support:
- Comprehensive online documentation: Access detailed product specifications, integration guides, and troubleshooting articles to assist you with any technical queries regarding our Electronic Gyroscope Sensor.
Services:
- Email support: Reach out to our dedicated support team for personalized assistance with any technical issues you may encounter.
We are committed to providing you with the support you need to utilize our Electronic Gyroscope Sensor to its fullest potential.
Product Packaging:
The Electronic Gyroscope Sensor comes securely packaged in an anti-static bag to prevent any electrostatic discharge during handling. The bag is then placed in a custom-fit foam insert that snugly holds the sensor in place, ensuring maximum protection against physical shocks and vibrations. This foam is encased in a sturdy cardboard box which is sealed and labeled with the product information and handling instructions. The packaging has been designed to be compact while offering the best possible protection for the sensitive electronics inside.
Shipping:
Once the Electronic Gyroscope Sensor is packaged, it is ready for shipping. The boxed product is placed in a secondary, larger cardboard box with additional cushioning material to fill any void space, minimizing movement during transit. Fragile stickers are applied to the outer box to alert couriers that the contents require careful handling. The package is then sealed with heavy-duty packing tape and dispatched using a reliable shipping service that provides a tracking number. Customers will receive their tracking information via email to monitor their package's journey until delivery.
