MEMS Current Mode Vibration sensor Technical Manual

AKM398 MEMS Current Mode Vibration sensor ○ CE certification: AT18250EC101485 ○ RoHS certification: 18300RC20410801 ○ China National Intellectual Property Appearance Patent (Patent No .: ZL 202130804901.7) ○ Revision time:2025-11-24 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,...

The AKM398 three-axis Vibration sensor is a widely used Vibration sensor series product independently developed and produced, which can be applied in multiple fields such as vibration testing and impact testing. The product adopts analog current output. AKM398 is a single crystal silicon capacitive sensor, consisting of a silicon chip that has undergone micro mechanical processing, a low-power ASIC for signal adjustment, a microprocessor for storing compensation values, and a temperature sensor. This product has low power consumption, has been calibrated, has a sturdy structure, and stable output....

Output current Operating current consumption aerospace aluminum Product net weight: <116g, magnetic base: <50g Product size: L36 * W32 * H24mm Size of magnetic adsorption base plate: L36 * W32 * H8.1mm ► PRODUCT ORDERING INFORMATION ► PRODUCT MEASUREMENT DIRECTION AKM398- E.g: AKM398-02-T: indicates ± 2g measure range/standard installation.

► ACCELERATION CALCULATION FORMULA r — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — Acceleration = (Output Current-12 MA) * Sensitivity Example: AKF398-02-T (± 2g measurement range, 4 ~ 20 MA current output range) Angular sensitivity = 16^4 = 4 MA/G Shell size: L36 Installation size: L29 Mounting screws: 4 M4 screws Magnetic bottom plate size: L36 x W32 x H11.6mm Installation size: L29 x W25 x H8.1mm Installation method: strong magnetic adsorption

Y-axis current signal Z-axis current signal ► SENSITIVITY AMPLITUDE-FREQUENCY RESPONSE CHARACTERISTIC CURVE (reference condition: f=20.000Hz, a=2.000G) SENSITIVITY AMPLITUDE-FREQUENCY RESPONSE CHARACTERISTIC CURVE SENSITIVITY LINEARITY GRAPH