Q: Why does IMU488 Inertial Measuring Unit becomes so hot selling product?
A: 1) IMU488 Inertial Measuring Unit is very mature tactical inertial measurement unit, which has been widely used in Tactical Unmanned Aircraft, Precise Guided Bomb, Rocket, Seeker, Platform Stabilization, Target Drones etc. for many years, and now the sold qty can reach 10k per year
2) since we produce IMU488 in big qty, so IMU488 IMU module can enjoy ultra-cost-effective, which assure that it can be widely used.
3) IMU488 can be compatible with ADIS16488, so you can use IMU488 easily to replace the ADIS16488 without any changing, and we can provide faster delivery, usually we have them in stock, we only need to do the tests before delivery.
4) we can provide customized design for IMU modules, so that make the IMU module more suitable for your application, we can provide the most flexible solution to our customers.
5) IMU488 IMU module provide the most reliability, its quality has been proven by the leading companies in China.
Q: Whether the IMU488’s SPI sampling rate can be settable?
A: yes, we can, the IMU488 SPI sampling rate can reach to 1000Hz, if you want to set it as 100Hz or other frequency, please let us know, we can set it here in our factory.
Q: Whether SkyMEMS can provide ODM service based on IMU488 module?
A: yes, we can, if you want bigger accelerometer’s range, we can design, such as ±40g, or other range, and also MEMS gyro also can be selected, we can design the IMU based on your actual application, and also optimize our algorithms to make it right suitable for your application. While the size and shape may be changed according to your actual applications.
Q: How to keep IMU488 bias calibration good after time? What a procedure?
A: In fact, before we do the high and low temperature compensation and turntable calibration, we have done ESS in the high and low temperature box for 48 hours to release the environmental stress and ensure that the stress deformation is as small as possible. But after a long time, 10 months or a year later, due to the characteristics of the MEMS sensor itself, the performance may have little change. At this time, if the customer has high accuracy requirement, they can return to our factory for calibration again.
Q: What is IMU488 working temperature?
A: The test temperature is -40 to 85 °, and the actual temperature may exceed 85 ° when testing high temperature. Actually, during the test, we kept IMU688 stay at both -40° and 85° for an hour
Q: What are the Degrees of freedom of IMU sensor?
A: IMUs measure six degrees of freedom. This includes the measurement of linear motion over three perpendicular axes (surge, heave, and sway), as well as rotational movement about three perpendicular axes (roll, pitch, and yaw). This yields six independent measurements that together define the movement of an object or vehicle.
Q: What are the Sensor types that IMU sensor is composed of?
A: The IMU is comprised of at least two dedicated sensors, one or more linear accelerometers and one or more gyroscopes or angular accelerometers. An optional magnetometer may be integrated into the unit to calibrate against orientation drift.
Accelerometers detect the direction and magnitude of change in velocity. Simple accelerometers measure linear motion while biaxial and triaxial accelerometers detect a change in velocity over a plane or three-dimensional space, respectively. The IMU possesses a triaxial (sometimes referred to as a triad) accelerometer, or otherwise uses multiple accelerometers that are aligned across perpendicular axes.
Gyroscopes detect the angular rate or orientation about a given directional vector. The angular rate is relative to a reference surface. The IMU uses multi-axis gyros to provide measurements in three orthogonal directions. These angular movements must be aligned with those of the accelerometer.
Q: What is the Relation to guidance and control?
A: Navigation is concerned with determining where you are relative to where you want to be.
Guidance is concerned with getting yourself to your destination.
Control is concerned with staying on track.
There has been quite a bit of synergism among these disciplines, especially in the development of missile technologies where all three could use a common set of sensors, computing resources, and engineering talent. Therefore, the history of development of inertial navigation technology has a lot of overlap with that of guidance and control.
Q: What is Aircraft Axes Definition?
A: The three axes of the aircraft are:
The roll axis which is roughly parallel to the line joining the nose and the tail
Positive angle: right wing down
The pitch axis which is roughly parallel to the line joining the wingtips
Positive angle: nose up
The yaw axis is vertical
Positive angle: nose to the right
Q: How about the delivery time?
A: for our standard model, if we have them in stock, only need 2~3days to re-test before shipping, if it is out of stock, then need around 2 weeks to arrange the production and tests. For the ODM electronic product, if needing to modify the structure, it will need around 3~4 weeks to arrange the production and tests.
Q: How to arrange the payment?
A: about the payment, please pay to our company account, the beneficiary’s name: NANJING SKY MEMS TECHNOLOGY CO., LTD. And our email is only @skymems.com to contact with u formally. To notice this to avoid the loss.
