AKM392 MEMS Digital Accelerometer MEMS Digital Accelerometer Technical Manual CE certification: AT18250EC101485 RoSH certification: 18300RC20410801

AKM392 MEMS Digital Accelerometer ○ CE certification: AT18250EC101485 ○ RoHS certification: 18300RC20410801 ○ China National Intellectual Property Appearance Patent (Patent No .: ZL 202130804901.7) ○ Revision time:2024-08-08 Note: Product functions, parameters, appearance, etc. will be adjusted as the technology upgrades. Please contact our pre-sales business to confirm when purchasing. Disclaimer This product is developed exclusively for commercial applications and is prohibited from being used for illegal purposes, such as military activities, research related to nuclear, chemical, or biological...

AKM392 MEMS Digital Accelerometer ▶ PRODUCT INTRODUCTION AKM392 triaxial accelerometer is a widely used acceleration sensor independently developed and produced by RION Technology, which can be applied to vibration testing, impact testing and other fields. The product adopts digital interface output, RS232/485/TTL is optional, and different address codes can be set. Multiple sensors are connected in series for a long distance, which is convenient for multi-point measurement and data analysis. The AKM392 is a monocrystalline silicon capacitive sensor consisting of a micromachined silicon chip,...

AKM392 MEMS Digital Accelerometer ▶ SPECIFICATIONS AKM392 Measure range Deviation calibration Noise density Resonant frequency Measure axis Power on/off repeatability Temp. coefficient of deviation Resolution/Threshold (@ 1Hz) Cross-axis sensitivity Transverse vibration sensitivity ratio Automatic output rate of 68 protocol MODBUS automatic output rate Output interface Communication protocol Reifen 68 protocol and MODBUS RTU protocol Operating current consumption aerospace aluminum Product net weight: ≤116g, magnetic base: ≤50g Product size: L36 × W32 × H24mm Size of magnetic adsorption base...

AKM392 MEMS Digital Accelerometer ▶ PRODUCT DIMENSION DRAWING Shell size: L36 × W32 × H24mm Installation size: L29 × W25 × H5.5mm Mounting screws: 4 M4 screws ▶ DIMENSIONS OF MOUNTING ACCESSORIES Magnetic bottom plate size: L36 × W32 × H11.6mm Installation size: L29 × W25 × H8.1mm Installation method: strong magnetic adsorptio

AKM392 MEMS Digital Accelerometer ▶ PRODUCT MEASUREMENT DIRECTION ▶ ELECTRICAL CONNECTION Color Function DC9～36V Positive pole of power supply GND Negative pole of power supply

AKM392 MEMS Digital Accelerometer ▶ SENSITIVITY AMPLITUDE-FREQUENCY RESPONSE CHARACTERISTIC CURVE (reference condition: f=20.000Hz, a=2.000G) Reference diagram of measuring range ±8G ▶ SENSITIVITY LINEARITY GRAPH

AKM392 MEMS Digital Accelerometer ▶ Communication protocol (factory default RION custom protocol) 1、Data frame format: (8 data bits, 1stop bit, no check, default rate 9600) Address Command Identifier Data length Data Checksum Code word (1byte) (1byte) domain (1byte) (1byte) (1byte) 68 Data format: hexadecimal; Designator: fixed as 68; Data length: length from data length to checksum (including checksum); Address code: the address of the acquisition module, the default is 00; Data field: change according to different content and length of command word; Checksum: The sum of the data length, address...

AKM392 MEMS Digital Accelerometer temperature value of the product, and the analytical method is the same as the X-axis angle. 1B: checksum, all data hexadecimal sum, no prefix 68. 0X0B Baud rate：default :9600 00 means 2400 The sensor answers the reply Data field (1byte) The number in the data field indicates the result of the sensor response Setting the Sensor Output The factory default value of data field (1byte) is: Response system: the sensor 01 5Hz Auto Output Mode acceleration only after the 02 10Hz automatic output mode upper computer sends the 03 25Hz Auto Output Mode read acceleration...

AKM392 MEMS Digital Accelerometer acceleration separately. 2. If the new address is successfully changed, the address code in all subsequent command and response data packets must be changed to the new address code after the change, otherwise the sensor will not respond to the command. E.g: 68 05 00 0F 01 15 Set the address to 01. 68 05 FF 0F 00 13 Reset the address to 00 with the general addr 0X8F The sensor answers the reply Data field (1byte) The number in the data field indicates the result of the sensor response Set Save Command Reply Data field (0BYTE) The number in the data field indicates...

AKM392 MEMS Digital Accelerometer ▶ MODBUS communication protocol 1. Data frame format: RTU mode Communication parameters: baud rate 9600 bps (default) Data frame: 1start bit, 8 data bits, even parity, 1stop bit Note that please read the following items carefully before use: 1) Because the MODBUS protocol stipulates that the time between two data frames should be at least more than 3.5 bytes (for example, under the baud rate of 9600, the time is 3.5 × (1/9600) × 11 = 0.004s). However, in order to leave enough margin, the sensor increases this time to 10 ms, so leave at least 10 ms between each...

AKM392 MEMS Digital Accelerometer 2. Read the holding register to get the acceleration data: Modbus function code 03H, which is output in format 1. Host query command: Sensor Sensor address Function Code Function Code Data length 9 bytes Upper 8 bits of data word First address Four words Lower 8 bits of data word Data length Data word 2 upper 8 bits Lower 8 bits of data word 2 Data word 3 upper 8 bits Lower 8 bits of data word 3 Data word 4 upper 8 bits Lower 8 bits of data word 4 Data word 5 upper 8 bits Read the holding register to get the acceleration data Command Application Example 1: Host...

AKM392 MEMS Digital Accelerometer 3. Read input register acceleration data: Modbus function code 04H, which is output in format 2. The user adjusts the register address and length to access the data of different axes as required. The registers are as follows: Register Data content Data type X-axis acceleration The data analysis is as follows Y-axis acceleration The data analysis is as follows Z-axis acceleration The data analysis is as follows Read Measurement Data Command Application Example 1: Host query command: Slave response: Sensor address Sensor address Function Code Function Code Access...