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A Hall effect accelerometer is an electronic device that is designed to detect the Hall effect, and convert its findings into electronic data, either to switch a circuit on and off, provide a measurement of a varying magnetic field, be processed by an embedded computer or displayed on an interface.
if a magnet is placed perpendicular to a conductor with a steady flow of current, the electrons flowing within the conductor are pulled to one side, thus creating a potential difference in charge (i.e. voltage). The Hall effect, then, is indicative of the presence and magnitude of a magnetic field near a conductor.
Using magnetic fields, Hall effect accelerometers are used to detect variables such as the proximity, speed, or displacement of a mechanical system.
Hall effect accelerometers are non-contact, which means that they do not have to come in contact with a physical element. They can produce either a digital (on and off) or analog (continuous) signal depending on their design and intended function.
Hall effect switches and latches are either on or off. A Hall effect switch turns on in the presence of a magnetic field and turns off when the magnet is removed.
A Hall effect latch turns on (closes) when a positive magnetic field is applied and remains on even when the magnet is removed. When a negative magnetic field is applied, the Hall effect latch turns off (opens) and remains off even when the magnet is removed.
The Global Hall-effect 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.
MEMSIC Hall-effect accelerometer – MEMSIC’s series of Hall switches adopts low-power CMOS process, with power consumption as low as 2.5μA. With an integrated temperature compensator, MEMSIC Hall Sensors have excellent temperature compensation characteristics, that can work in -45°C to 85°C and still maintain good performance and consistency.
The Hall switch is widely used for detecting the charging box lid of TWS earphones, and can also be used for checking whether the earphones are charging.
Compared with traditional detection methods, the Hall Switch ensures the product can achieve better sealing. It is the preferred choice for solution providers due to the following advantages: clean and stable digital output, long service life, high vibration resistance, and low power consumption.
In recent years, a growing number of smartphone manufacturers have replaced the 3.5mm audio interface with TWS (true wireless stereo) Bluetooth earphone design in order to achieve a thinner and better-waterproofed smartphone product.
Currently, around 30% of smartphones support TWS Bluetooth earphones, and its unfettered user experience is also embraced by consumers, leading to a continuously rapid growing market demand.
With MEMSIC’s wide application of Magnetometer sensor products in smartphone manufacturers, MEMSIC has accumulated a large number of client resources, laying a good foundation for the newly launched Hall sensors to enter the TWS earphone market.
