Free trial: Hot gas accelerometer is here, shoot impact comparison experiment and get a gift
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Accelerometers are very common, hot gas type, is there gas inside? Yes, F=ma. When m is replaced by gas mass, it is said that the sensor will perform better under impact or stress. For details, you can search for the principle of thermal convection accelerometer. This time, I bring you the world's unique hot gas accelerometer shared by @littleshrimp forum. Compared with traditional capacitive accelerometers, hot gas accelerometers have unique advantages such as no moving parts, super reliability, easy manufacturing, and ultra-low cost.
Technical advantages of thermal gas accelerometers
The forum provides you with a sample of the hot gas accelerometer: MXC6655XA, which has a sensor structure that can withstand more than 200,000g of shock, 12-bit digital signal output in three axes of X/Y/Z, and position detection in six directions. From the Internet search, we know that hot gas accelerometers have been used in smartphones. For example, the mobile phone is tested for a drop of at least 1.2m before leaving the factory. The accelerometer is used to obtain the drop information in the first time, and the power of the electronic components that need to be shockproof is turned off to protect them. There are also applications such as high-speed rotating hard disks, car airbags, and anti-lock braking systems. More applications are waiting for front-line engineers or electronics enthusiasts to actually explore. Interested ones are welcome to play together as an alternative solution for application. We started with an acceleration impact experiment. The scene was designed by netizens themselves. Let's explore its performance in real impact scenarios together.
Acceleration Impact Force Experiment Description
(1) Experimental object: MEMSIC thermal acceleration sensor MXC6655XA sample (provided free of charge by EEWorld)
(2) Selection of comparison sensor: Netizens select at least one acceleration sensor as a comparison object and participate in the impact force experiment together.
(3) Netizens need to design their own experimental circuit boards, make boards, and perform soldering (a 20-yuan funding subsidy is available), design their own experimental scenes, and record the experimental process and summarize the experimental results.
(4) Experimental idea (for reference only): Solder the MXC6655XA and a sensor of your choice on a PCB, record acceleration data through the MCU, and indicate the sensor status through the LED (or an external data acquisition device records and monitors the sensor status) ---> Use different impact forces to act on the board under test (or set the board to drop from different heights) ---> Video record the experimental process and record the experimental data, calculate the actual impact on the board, analyze the recovery time of the sensor under different impact forces, the impact force when a fault occurs, etc.
Event Schedule
Application: From now until September 18
Selection & Announcement: Before September 20
User Design & Sharing: September 27th - November 4th
Event awards: before November 18
How to Register
From now until September 18, netizens who want to participate need to post:
(1) Reasons for participation and a brief description of relevant personal skills
(2) Ideas for designing impact comparison experiments, comparison sensor models, and how many thermal acceleration sensors MXC6655XA are needed
User Design & Share
From September 27 to November 4, the shortlisted netizens can post in the >>Sensor section to share the video recording the experimental process and summarize your experimental results. Netizens who upload their schematics and PCB open source to the >>EEWorld Reference Design Center can get a 20 yuan board subsidy from EEWorld. Related information:
Software reference (bing search): Event Gifts
2 Experimental Design & Photography Expert Awards
Phantom Small T Fascia Gun
Electric Toothbrush
Experiment Completion Sharing Award (3 winners, 50~100E gold coins)
1E coin = 1 RMB. E coins can be exchanged for products from JD.com (except self-operated books), Dangdang, Mouser, Digikey and EEWORLD Taobao stores. For more information, see >> About E coins . Netizens who have completed the experiment and shared relevant information as required can participate in the selection of the forum originality award for that month. Activity exchange group
Add administrator "helloeeworld" as a friend on WeChat, and start conversation with "hot gas accelerometer", and you will be pulled into the group to chat.
Scan the code and talk: Thermal gas accelerometer
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