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INTRODUCTION TO CAPACITIVE ACCELEROMETER MARKET
Capacitive accelerometers, also known as vibration sensors, rely on a change in electrical capacitance in response to acceleration. Accelerometers utilize the properties of an opposed plate capacitor for which the distance between the plates varies proportionally to applied acceleration, thus altering capacitance. This variable is used in a circuit to ultimately deliver a voltage signal that is proportional to acceleration.
Capacitive accelerometers are capable of measuring constant as well as slow transient and periodic acceleration. AC capacitive-acceleration sensors fundamentally contain at least two components; the primary is a ‘stationary’ plate (i.e., connected to the housing) and the secondary plate is attached to the inertial mass, which is free to move inside the housing.
These plates form a capacitor whose value is a function of a distance d between the plates . The sensing material is either a flat plate of nickel or electronic chip supported above the substrate surface by two torsion bars attached to a central pedestal.
When subject to a fixed or constant acceleration, the capacitance value is also a constant, resulting in a measurement signal proportional to uniform acceleration, also referred to as DC or static acceleration.
The Global Capacitive accelerometer market accounted for $XX Billion in 2023 and is anticipated to reach $XX Billion by 2030, registering a CAGR of XX% from 2024 to 2030.
MEMS Capacitive Accelerometers – Jewell Instruments offers both analog and digital accelerometers utilizing MEMS capacitive technology. They can measure positive and negative acceleration in ranges up to +/-0.5g to +/-40g. With up to 500 Hz bandwidth, some models can be used for vibration measurement
The MEMS accelerometers are designed to measure the linear acceleration of the material attached to it. The inventory features analog AKA and JMA MEMS series as well as digital DKA accelerometer. These models have been widely used in linear acceleration and vibration measurement across industries.
The following features make them stand out : They are designed for applications demanding low power and high stability ; All these series are available in single, dual, and tri-axis configurations and in rugged machined aluminum housing ; The DKA digital accelerometer is provided with RS485, RS232, TTL, and MODBUS digital interface outputs.
