Accelerometer is a sensor that can accurately measure the acceleration of an object (including the rate of change of velocity and gravitational acceleration). It is like the "motor nerve" of an object, capable of capturing various motion states ranging from subtle vibrations to intense speed changes, and is an indispensable core component in modern electronic devices and industrial systems.
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Small Range Triaxial MEMS Accelerometer
1.Three axis integration2.LCC16 standard packaging3.High reliability4.SPI Standard Digital Interface5.Excellent temperature characteristics6.SPI Standard Digital Interface Add to Inquiry -
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Why choose our accelerometer
Professional Technical
Our engineers and technicians work with strict processes and provide customized technical solutions that meet the needs of demanding applications.
Stable Production Lines
We operate organized production lines supported by clear workflow control, ensuring consistent output and steady product performance.
Ultra-High Precision & Sensitivity
Advanced MEMS or quartz sensing technology is adopted, with a noise density as low as μg/√Hz and a resolution reaching the micro-gravity level (μg), enabling the capture of extremely weak vibration signals.
Fast and Responsive Service
Our sales team replies within 24 hours and supports customers throughout the whole project cycle.
Full-cycle technical support from selection testing and integration guidance to fault analysis, with a response time of less than 24 hours.
Excellent Stability & Anti-Interference Performance
Ultra-low temperature drift coefficient (e.g., ±0.2mg/℃), with output drift below 0.5% across the full temperature range, ideal for extreme temperature environments (-40℃～180℃).
Built-in anti-electromagnetic interference design, certified to industrial-grade EMC/EMI standards, ensuring undistorted data acquisition in complex electromagnetic environments.
Flexible Customization Capabilities
We can adjust the thickness of the vibrating beam and flexible beam as well as the dimensions of the mass block according to customer requirements to adapt to different measuring range needs of ±15g~±80g. Meanwhile, the electrode layout and signal output mode are optimized to meet the special application scenarios in various fields such as aerospace, earth resource exploration and industrial equipment monitoring.
Features of Accelerometer
1
Ultra-high precision and excellent repeatability:
Benefiting from the high rigidity of the quartz pendulum plate and the micro-elastic support of the flexible beam, mechanical friction and clearance errors are effectively reduced. The bias stability can reach the range of 10–50 µg, with a noise density as low as 5–30 µg/√Hz, enabling accurate capture of weak acceleration changes and extremely strong consistency in repeated measurements. It can meet the high-precision measurement requirements of navigation and tactical grades without complex algorithm compensation. Minimal signal drift over time ensures consistent, reliable measurements even in long-term deployments.
2
Compact structure & outstanding lightweight design:
Adopting an integrated design of quartz pendulum plate and flexible beam, it eliminates the need for additional support structures and signal conversion components, achieving a greatly simplified structure. Its volume is reduced by more than 30% compared with conventional quartz accelerometers, and the weight can be controlled from several grams to tens of grams, making it ideal for volume and weight-sensitive applications such as aerospace and small guided equipment.
3
Exceptional environmental adaptability:
The ultra-low thermal expansion coefficient of the quartz crystal combined with the anti-deformation capability of the flexible structure yields minimal temperature drift and a stable temperature coefficient over the full temperature range, enabling reliable operation in a wide temperature environment of -55℃~+125℃. Meanwhile, the elastic buffering effect of the flexible beam enhances vibration and shock resistance—some models can withstand 1500g shock, maintaining consistent performance even under complex working conditions such as severe vibration and sudden temperature changes.
4
High reliability & long service life:
The integrated design with no loose components minimizes mechanical wear and contact failures. Combined with the all-solid-state packaging process, it delivers outstanding resistance to moisture, corrosion and electromagnetic interference. Free of vulnerable parts and featuring an extremely low failure rate, it boasts a service life of tens of thousands of hours under normal operating conditions, perfectly suited for applications requiring long-endurance and long-cycle continuous operation.
5
Excellent signal performance & easy integration:
The piezoelectric effect directly converts mechanical quantities into electrical signals with clear output and low noise, facilitating subsequent signal processing. Some models can directly output digital frequency signals without analog-to-digital conversion, which eliminates conversion errors. This allows for rapid integration with inertial measurement units (IMU) and navigation systems, making it ideal for the requirements of digital and miniaturized equipment.
Advantages of Accelerometer
Long-term stability far exceeds that of similar products:
Compared with conventional quartz accelerometers, the flexure structure reduces mechanical clearance and friction, resulting in minimal long-term accuracy degradation. In contrast to MEMS accelerometers with a bias stability of 50–500µg, it delivers a 5–10 fold improvement in stability and eliminates the need for frequent calibration, making it ideal for long-term reliable navigation scenarios such as satellites and long-endurance UAVs.
Irreplaceable Adaptability to Extreme Working Conditions:
The elastic buffering effect of the flexure beam prevents structural damage under extreme conditions such as high-speed rotation, intense vibration and drastic wide-temperature changes, while the chemical stability of the quartz crystal inhibits performance degradation. Its performance far outperforms that of silicon-based MEMS sensors and conventional quartz accelerometers, making it the preferred component for extreme scenarios including missile guidance and aero-engine health monitoring.
Balanced High Precision and Lightweight Design:
Addressing the industry pain point of reconciling high precision with miniaturization – it retains the high-precision advantages of quartz accelerometers while achieving a lightweight and compact form factor through an integrated flexure design. Its volume and weight are significantly reduced compared with traditional mechanical accelerometers, and its precision is an order of magnitude higher than that of high-precision MEMS sensors, making it well-suited for the integration requirements of small high-end equipment.
Low Maintenance Cost & High Practicality:
The integrated structure with no vulnerable parts ensures an extremely low failure rate, and most models feature a lifetime calibration-free design that eliminates the need for frequent maintenance and calibration, significantly reducing long-term operational costs. Meanwhile, the mature manufacturing processes and high localization rate enable parameter customization for different scenarios, making it suitable for a wide range of high-precision measurement requirements for both military and civilian applications.
Types of Accelerometer
Quartz Accelerometer
The quartz flexure accelerometer is the core and mainstream type of quartz accelerometer. With an integrated "quartz pendulum plate-flexure beam" structure as its core, it achieves high-precision acceleration measurement by virtue of the piezoelectric effect of quartz crystals and the elastic support characteristics of the flexure structure, and is widely applied in high-end core scenarios such as aerospace inertial navigation, missile guidance and satellite attitude control.
MEMS Accelerometer
MEMS accelerometers are miniature sensors based on micro-electro-mechanical system technology, with the core advantage of high detection accuracy that enables precise capture of an object's linear acceleration, attitude changes and micro-vibrations. Featuring a compact size, low power consumption and high stability, they are suitable for harsh detection scenarios and widely applied in high-precision fields such as aerospace, precision instruments and industrial testing. Meanwhile, they are easy to integrate and compatible with a variety of devices.
Applications of Accelerometer
Petroleum Drilling Engineering:
Drilling engineering is the primary link in petroleum exploration and development. Especially with the increasing number of complex well types such as directional wells, horizontal wells and high-temperature high-pressure wells, the precision requirements for drilling trajectory control and downhole condition monitoring are constantly rising. Accelerometers have become an indispensable core component in Measurement While Drilling/Logging While Drilling (MWD/LWD) systems, undertaking the dual responsibilities of "underground navigation" and "condition diagnosis".
Monitoring of Oil and Gas Pipelines and Offshore Oil Platforms:
Oil and gas pipelines are the core carriers for oil and gas storage and transportation, and their safe and stable operation is directly tied to the safe production of the petroleum industry. Offshore oil platforms are situated in complex environments and subject to the impacts of wind, waves, ocean currents and other factors, placing their structural stability under severe challenges. The application of accelerometers in these two fields has effectively enhanced the capacity for safety prevention and control.
Condition Monitoring of Petroleum Equipment:
In the petroleum production process, various key surface and downhole equipment operate under heavy load, high speed and harsh working conditions for a long time. Equipment failures may lead to production interruptions, causing huge economic losses and even triggering safety accidents. As a core component for vibration monitoring, accelerometers can capture equipment vibration signals in real time, realize equipment health condition diagnosis, early fault warning and safety protection, and provide support for the whole life cycle management of equipment.
Working Principle of Accelerometer
Inertial Action Triggers Physical Response:
An accelerometer usually contains a freely movable mass block (also known as a sensing mass), which is connected to the sensor housing through structures such as cantilever beams and springs. When the sensor accelerates along with the measured object, the mass block tends to maintain its original motion state due to inertia, thereby generating displacement relative to the sensor housing or exerting an inertial force on the supporting structure — the magnitude of this inertial force is proportional to the acceleration of the object (as can be seen from Newton's second law F=ma, when the mass m is fixed, the inertial force F has a linear relationship with the acceleration a).
Physical Quantity Conversion:
The displacement or inertial force of the mass block will cause physical changes in the internal structure of the sensor. Such changes may be the change of capacitor spacing, material deformation, temperature field offset, etc., and the specific form depends on the type of accelerometer.
Electrical Signal Conversion:
Through specific physical effects (such as capacitive effect, piezoelectric effect, piezoresistive effect, etc.), the above physical changes are converted into measurable electrical signals (such as voltage, current, charge, etc.), and the intensity of the electrical signal corresponds to the magnitude and direction of the acceleration.
Signal Processing and Output:
The converted original electrical signal is usually weak and needs to go through amplification, filtering, calibration and other processing. Finally, a standardized electrical signal (analog signal or digital signal) is output for reading and analysis by subsequent equipment (such as processors, single-chip microcomputers), so as to obtain the acceleration data of the measured object.
Installation Guide
01/
Clean the Surface: Thoroughly clean the mounting surface using isopropyl alcohol or a manufacturer-recommended solvent to remove oil, dust, and debris. A contaminated surface can compromise adhesion and introduce measurement noise.
02/
Use Appropriate Adhesive: Select a high-strength epoxy or cyanoacrylate adhesive rated for the expected temperature and vibration levels. For permanent installations, stud mounting is preferred; for temporary setups, adhesives offer flexibility.
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Apply the Adhesive: Apply a thin, uniform layer to the base of the accelerometer to avoid creating a damping layer that could affect high-frequency response.
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Mount the Sensor: Carefully align the sensor according to the desired measurement axis (X, Y, or Z). Use alignment jigs if necessary to ensure precision. Press firmly to ensure full contact and eliminate air pockets.
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Allow Curing Time: Follow the adhesive manufacturer’s curing guidelines—typically 2–24 hours. Avoid subjecting the sensor to vibration or load during this period.
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Connect to Data Acquisition System: Use shielded BNC or coaxial cables to connect the sensor to the DAQ system or signal conditioner. Ensure proper grounding to minimize electrical noise and interference.
Maintenance
1
Periodic Inspection
Regularly examine the sensor and mounting area for physical damage, corrosion, or contamination. Even minor debris can affect sensor coupling and data fidelity.
2
Calibration Checks
Calibrate the accelerometer annually or as recommended by industry standards (e.g., ISO 17025). Recalibration is essential after physical shock, extreme environmental exposure, or relocation.
3
Monitoring Performance
Track output signals over time for anomalies such as baseline drift, noise spikes, or reduced amplitude. These may indicate mounting failure, cable damage, or internal sensor issues.
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Firmware and Software Updates
For digital variants with integrated electronics, ensure firmware and analysis software are up to date. Updates often include improved filtering algorithms and diagnostic tools.
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Handling During Transport
Always store and transport the accelerometer in a protective case with cushioning. Avoid dropping or exposing it to unnecessary shock, which can damage the quartz element.
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Environment Monitoring
Monitor operating conditions such as temperature extremes, humidity, and exposure to chemicals. Prolonged exposure to corrosive environments can degrade housing seals and adhesive bonds.
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Adhesive Inspection
Check the integrity of the bonding layer periodically, especially in high-vibration or thermally cycled environments. Re-mount the sensor if delamination or cracking is observed.
FAQ
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