The sensitive core structure of the accelerometer – we are blessed

Create Date: 2024-8-30 12:03:23|Source: P+F/Double Blessing

The accelerometer is a sensor that can measure acceleration, this sensor can help the product to understand the environment in time, and it is very accurate, so what is the structure of its sensitive core?

                            The sensitive core structure of the accelerometer – we are blessed

1. Compression method: the structure of piezoelectric data under compression or tension to generate charge. The pressure-sensitive core is the most traditional structure of an accelerometer. The utility model discloses a simple and convenient production, can occur higher natural resonant frequency and the wider frequency measurement scale, and the biggest disadvantage is that can not effectively eliminate the influence of various disturbances on the measurement signal.

2. Shear method: A structural method in which a charge is generated by applying a shear force to a piezoelectric material. Theoretically, the charge signal generated by the piezoelectric data under the effect of shear force is less affected by external disturbances, so the shear structure is the most suitable accelerometer center. However, in the actual production process, it is the most difficult part of the sensor manufacturing process to ensure that the shear-sensitive core accelerometer has a high and stable frequency measurement scale. In order to obtain higher parameter indicators, only the fasteners of imported memory metal data can ensure that the sensor has a stable and reliable resonance frequency and frequency measurement scale.

3. Bending deformation sorghum shape: the structure of piezoelectric data that is charged by bending deformation. The bending deformed sorghum structure can generate a large charge output signal, and it is easy to realize the control damping, but because of its low measurement frequency scale and the signal drift that is easy to occur due to temperature change cannot be ruled out, this structure is rarely used in the design of piezoelectric accelerometers.

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