Electric field sensor based on microstrip antenna
An electric field sensor and microstrip antenna technology, applied in the field of electric field sensing, can solve problems such as low sensitivity
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Embodiment 1
[0021] The invention provides an electric field sensor based on a microstrip antenna, such as figure 1 As shown, it includes: a substrate 1 , a heating part 2 , a first microstrip antenna 3 , an organic conjugated polymer material layer 4 , and a second microstrip antenna 5 . The substrate 1 is provided with pits, and the heating part 2 fills the pits. The material of the base 1 is a heat insulating material, which is used to insulate the heat generated by the heating part 2 . The heating part 2 can generate high temperature by connecting other high-temperature objects, or by generating heat through resistance, which is not specifically limited here. The first microstrip antenna 3 is placed on the heating part 2 . The first microstrip antenna 3 is a plane. The organic conjugated polymer material layer 4 is placed on the first microstrip antenna 3 . The material of the organic conjugated polymer material layer 4 is poly-3-hexylthiophene. The second microstrip antenna 5 is ...
Embodiment 2
[0024] On the basis of Example 1, such as figure 2 As shown, a force application part 6 is also included, and the force application part 6 is placed on the second microstrip antenna 5 . The force applying part 6 is an insulating material. During application, the gravity of the force application part 6 itself or an external pressure of a fixed magnitude acts on the organic conjugated polymer material layer 4 . When the molecular chain direction of the organic conjugated polymer material layer 4 changes, not only the dielectric constant of the organic conjugated polymer material layer 4 is changed, but also the mechanical properties of the organic conjugated polymer material layer 4 are changed. The thickness of the organic conjugated polymer material layer 4 changes under the action of gravity of the force applying part 6 itself or an external pressure of a fixed magnitude. That is to say, the electrostatic field to be measured not only changes the dielectric constant of the...
Embodiment 3
[0026] On the basis of Example 1, such as image 3 As shown, an insulating part 7 is also included, and the material of the insulating part 7 is silicon dioxide or glass. The insulating part 7 is placed on the first microstrip antenna 3, the insulating part 7 is a spherical cap, the bottom surface of the spherical cap is placed on the first microstrip antenna 3, the organic conjugated polymer material layer 4 is placed on the insulating part 7, and the organic The top surface of the conjugated polymer material layer 4 is a plane. Since the thickness of the insulating part 7 is non-uniform, the thermal conductivity of the insulating part 7 is also non-uniform in space, which leads to the degree of change of the molecular chain direction in the organic conjugated polymer material layer 4. The spatial distribution of the mechanical properties of the layer 4 of yoke polymer material is also inhomogeneous. In this way, due to the charge accumulation effect, it is equivalent to re...
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