GKM392 MEMS Digital Accelerometer

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Accelerometer

GKM392

MEMS Digital

RS232/485/TTL signal output selectable
Vibration: 10~2000Hz, 10g
Shock: 100g@11ms, triaxial (half-sine wave)
Excellent mechanical strength and long-term stability

Product Introduction

The GKM392 triaxial accelerometer is an independently developed accelerometer sensor series by RUICOM Technology, suitable for applications such as vibration testing and impact testing. This product supports digital interface output (RS232/485/TTL optional) and can achieve long-distance series connection of multiple sensors via address code settings, facilitating multi-point synchronous measurement and centralized data analysis.

The GKM392 adopts single-crystal silicon capacitive sensing technology. Its core components include: a micromachined silicon chip, a low-power ASIC signal conditioning circuit, a microprocessor for storing compensation data, and an integrated temperature sensor. The product has undergone precise calibration and features low power consumption, high structural strength, and stable output. Its electronic system adopts a solid-state power supply reset design and is equipped with overcurrent protection to ensure safe and reliable operation. The sensor exhibits long-term stability of the scaling factor and a typical deviation value better than 0.1% across the entire measurement range, meeting the requirements for high-precision measurement.

Performance Parameters

GKM392	Parameter						Unit
Measurement Range	±2	±4	±8	±10	±20	±40	g
Bias Calibration	<1	<1	<1	<1	<1	<1	mg
Measurement Axis	X，Y，Z	X，Y，Z	X，Y，Z	X，Y，Z	X，Y，Z	X，Y，Z	axis
Upward/Power-Off Repeatability	<2	<2	<2	<2	<2	<2	mg(maximum)
Bias Temperature Coefficient	0.01	0.01	0.01	0.01	0.01	0.01	%/℃(typical)
Resolution/Threshold (@ 1Hz)	< 1	< 1	< 1	< 1	< 1	< 1	mg(maximum)
Nonlinearity	<1	<1	<1	<1	<1	<1	% FS（maximum）
Bandwidth (3dB)	500	500	500	500	500	500	Hz
Cross-Axis Sensitivity	1	1	1	2	2	2	%
Lateral Vibration Sensitivity Ratio	1	1	2	5	5	5	%
Noise Density	21	21	21	86.6	86.6	86.6	μg/√Hz
Resonant Frequency	2.4	2.4	2.4	5.5	5.5	5.5	kHz
68 Protocol Auto Output Rate	5Hz、10Hz、25Hz、50Hz、100Hz、200Hz、500Hz、1000Hz
MODBUS Auto Output Rate	10Hz、25Hz、50Hz
Output Interface	RS232/TTL/RS485
Communication Protocol	Serial communication protocol and MODBUS RTU protocol
Input (VDD_VSS)	9-36 VDC
Operating Current Consumption	<60mA @ 12 VDC
Protection Class	IP67
Material	Product: Aerospace aluminum Magnetic base: Stainless steel
Weight	Net weight：≤116g Magnetic base：≤50g
Dimensions	Product dimensions：L36×W32×H24mm Magnetic base dimensions：L36×W32×H8.1mm
Note: Do not use beyond the specified range for extended periods.

Product Dimensions