This paper presents a novel X – Y dual axis sensitive sensor for static electric field measurement. Compared with the existent electric field micro sensors, which can only detect one axial direction electric field, this sensor is capable of two-dimensional electric field sensing. In the design of the micro sensor, the combination of angular comb-drives and serpentine springs can bring the advantage of achieving large in-plane rotation, which enlarges the vibration amplitudes and results in more induced charges. Moreover, the push–pull electrostatic actuation method and the adopted differential sensing electrodes both can reduce the impact of common mode interference. Two pairs of sensing elements are located differentially to form a cross-like shape, with each pair to get X and Y component of the electric field respectively. Experimental results agree well with the electric field calibration theory and show high measurement accuracy. In the range from 0 to 25 kV/m, the errors of electric field value are better than 8%.

Spatial Three Dimensional Electric Field Measuring System Basing on L-Band Meteorological Radar: Spatial Three Dimensional Electric Field Measuring System Basing on L-Band Meteorological Radar

A novel micro electric field sensor with X–Y dual axis sensitive differential structure

A new integrated optical three-dimensional (3D) electric field (E-field) sensing system is shown in this paper. In the system, the method of tuning laser’s wavelength is used for controlling the working point of the integrated optical E-field sensor to keep it always in linear working area. The sensing system contains three independent E-field sensors, and the tuning of their working points and the sensing of electric signal are completed by adopting time-division multiplexing (TDM) technique. Then, the theoretical analysis and simulation of the working mechanism of the E-field sensing system are done in this paper. The results show that the bandwidth of electric signal is directly related with the tuning time of working point, and also determines the working rate of the controlling system.

An integrated optical 3D electric field sensing system based on time-division multiplexing

The traditional process of measuring a three-dimensional (3D) electric field in the atmosphere may suffer from limited accuracy of the electric field component intensity due to multiple factors, such as the 3D electric field sensor’s pose change due to the sensor-carrier motion and the non-parallel positions between the 3D electric compass and field sensor’s measurement axes. Thus, this paper proposes a modified 3D electric field directional decomposition algorithm to overcome this problem. Specifically, the developed solution utilizes a parameter identification and fine-tuning scheme that solves the inaccurate measurement problem caused by the non-coaxial 3D positions between the electric field sensor and the compass. The measurement results highlight that the proposed method eliminates the instability of the electric field intensity measurement errors caused by the 3D electric field sensor changes because the measurement accuracy of the corrected electric field component intensity does not change with the sensor’s rotation angle. Our technique reduces the measurement error of the electric field intensity originating from the non-parallel position 3D electronic compass and field sensor measurement axes, further improving the measurement accuracy of the atmospheric field intensity.

https://www.mdpi.com/2079-9292/11/17/2688/pdf?version=1661589876

Spatial Three Dimensional Electric Field Measuring System Basing on L-Band Meteorological Radar: Spatial Three Dimensional Electric Field Measuring System Basing on L-Band Meteorological Radar

Citations

A novel micro electric field sensor with X–Y dual axis sensitive differential structure

An integrated optical 3D electric field sensing system based on time-division multiplexing

Exploring a Directional Measurement Method of Three-Dimensional Electric Field Intensity in the Atmosphere

Related Papers (5)

An approach to improve interpretation of polarimetric radar measurements for meteorological applications

Electromagnetic wind radar simulator validation using meteorological data and a zenith X-band radar

Simulation of X-band radar observation of precipitation from S-band measurements

Combining ground based meteorological radar data from multiple overlapping sites

Research on the system of advanced X-band Doppler weather radar with dual-linear polarization capability