Q: when there are any types of magnetic forces e.g. metal objects, electronics, motors etc. the electronic magnetic compass performance is typically not very good. Do your electronic compasses have the ability to work in this type of environment?
A: for your concerned about electronic compass used in the magnetic interference, this is actually a normal phenomenon for electronic compass, cause these electronic compasses are made of magnetometer sensors, which will be influenced by the surrounding magnetic field
to solve this problem, we usually suggest our customer to adopt anti-interference electronic compass (like our EC2000 electronic compass), and install the electronic compass at least 20~30cm away from the magnetic forces e.g. metal objects, electronics, motors etc. (for motors, it is better 40cm away)
and at the same time, the second magnetic calibration should be executed after the EC2000 is installed, which can compensate the magnetic interference. cause the magnetic interference is very complicated, it depends on many aspects: such as installation position, second calibration
but we are very confident to say that our EC2000 electronic compass performs better performance, it has been qualified by Chinese military and hundreds of customers around the world. It enjoys high anti-interference, better performance.
Q: Is the 0.3° heading precision constant or does it have regular spike ( derivation ) and if yes, what is the actual value of these spikes?
A: for EC2000 accuracy, 0.3° RMS 25°C, tilt angle<30°, this accuracy doesn’t have regular spike, it is less than 0.3°
Q: What is the require calibration sequence after each boot?
A: cause the magnetic interference of the application environment is different, so installing the EC2000 electronic compass module, it needs to do the user calibration, and EC2000 supports local calibration, the calibration method please refers to the manual of user calibration.
Q: What is the protocol used to communicate with the system?
A: EC2000 supports RS232 or RS485 communication interface, if you want to use LV-TTL interface, we recommend u to use our ECB100 or ECB200, which is convenient to be mounted into your boards.
Q: If we wanted to perform the user calibration through a microcontroller (in an embedded system housed inside our autonomous mini robot) so that we don’t have to connect a PC/laptop to it every time we need to calibrate the compass. So, do you have any software development kit (SDK) or API that can be used to replicate the electronic compass user calibration software in a certain programming language e.g. C/C++ for a microcontroller? That will significantly help us to perform on-site calibration on the robot without having to connect a PC externally to it.?
A: For your system, you can send the commands to do the self-calibration, you can let your system to do the calibration through sending commands, about the method please contact with us, we will provide the details. And we also can provide the dynamic database, dll, which can be used in win10, 64bit OS system. Which is really convenient for your applications.
Q: What is the main difference between ECB300 and EC2000?
A: EC2000 has casing, and it is IP67 protection, and better anti-interference, both adopt the same chips and same accuracy, ECB300 is board-based, and smaller, and easy to be integrated into your system, and ECB300 is a little cheaper than that of EC2000.
Q: whether the connector and cable length can be selected?
A: yes, no problem, please let us know the connector type and cable length you want, then we can do it.
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.
