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Hall Effect Gear Tooth Sensors: an Introduction

6. October 2022 Yang Liu Comments 0 Comment

Introduction Hall Effect Gear Tooth Sensors are an established and inexpensive technology for the measurement of position and rotational speed. By sensing the magnetic flux variation in the air gap between a magnet and passing ferrous gear teeth, they generate a pulse signal with a frequency proportional to rotational speed. Their quick response time, high operating temperature range as well as their contamination, and EMI immunity have turned Hall Effect Gear Tooth Sensors into popular sensing solutions for many different…

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Application of Permanent Magnet System and Gear Tooth Sensing in Wind Turbine Optimization

28. September 2022 Yang Liu Comments 1 comment

Source: Euronews, (2022) Wind has long been used as a renewable energy source for centuries, from ship sailing to grain milling. And in modern times, wind power is the fastest growing renewable energy technology in the utility sector, exceeding the growth of solar power, hydro power as well as bioenergy. For instance, the global annual wind electricity generation has increased exponentially from 433,770 Gwh in 2011 to 1,588,586 Gwh in 2020, with 93% of the capacity being onshore wind…

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Publication of Cross-Correlation Spectra for Frequency Measurements of Noisy Signals

22. September 2022 Yang Liu Comments 0 Comment

We are pleased to share with you our article “Optimization of the Processing Time of Cross-Correlation Spectra for Frequency Measurements of Noisy Signals”, published in Metrology 2022, 2, 293–310 of MDPI, on June 10th, 2022. Accurate frequency measurement plays an important role in many industrial and robotic systems. However, different influences from the application’s environment cause signal noises, which complicate frequency measurement. In rough environments, small signals are intensively disturbed by noises. Thus, even negative Signal-to-Noise Ratios (SNR) are possible…

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Battery Management Sensors and Systems in Electric Vehicles

14. September 2022 Yang Liu Comments 2 comments

In recent years, more and more electric vehicles (EVs) can be seen on the road, along with charging stations that can easily be found around the corner. The global EV market also proved the growing popularity of sustainable mobility, from a market value of $163 billion in 2020 to a projected value of $824 billion by 2030. In order to meet the growing demand for EVs, and to ensure the proper functioning of batteries for high-power EV applications, battery management…

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Application of Hall Effect Sensors in the Automotive Industry

7. September 2022 Yang Liu Comments 3 comments

Hall Effect sensors are commonly used to measure the strength of a magnetic field and the amount of current. Their applications include contactless sensing for linear movements, angular positioning, velocity, and rotational speed and direction, with the advantage of a long-term operation with low wear and tear. With their multiple sensing functions of movement and positioning, Hall Effect sensors in automotive applications can be widely observed in recent years. They have also become the third most common sensor product in…

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Hall Effect Current Sensors: An introduction

17. August 2022 Yang Liu Comments 3 comments

In this article, we want to introduce Hall Effect current sensors to you. Current Sensing is an important process for the evaluation, control, and diagnosis of electrical systems. Traditionally, you use current sensing for circuit control and protection. Due to technological progress, people use current sensing in performance optimization and monitoring as well. Thus, you can find Current Sensors in many application fields like: Current and voltage control Inverter Servo motor Generators Automobile electronics Telecommunication Battery management systems Wind turbines…

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