Insulation resistance test
For the electrical performance test of Special-Shaped Ceramic Structural Parts, insulation resistance test is a key item. Since ceramic materials are used as insulating parts in many cases, the resistance value of the surface and inside of ceramic structural parts is measured under certain voltage conditions by using an insulation resistance tester. For special-shaped structural parts, it is necessary to pay attention to the placement of the electrodes to ensure that the electrodes are in good contact with the ceramic surface and cover a sufficient area to accurately reflect their insulation performance. For example, the insulation resistance value of special-shaped ceramic insulating parts used in some electronic devices must meet high requirements to prevent current leakage from causing equipment failure. The size of the insulation resistance is affected by factors such as the purity, density and internal defects of the ceramic material. Through testing, the insulation reliability of Special-Shaped Ceramic Structural Parts in practical applications can be evaluated.
Dielectric constant determination
The dielectric constant is an important parameter for measuring the electrical performance of Special-Shaped Ceramic Structural Parts. Use a special dielectric constant measuring instrument, such as a parallel plate capacitance method measuring device. Place the Special-Shaped Ceramic Structural Parts between parallel electrodes to form a capacitor. The dielectric constant is calculated by measuring the capacitance value and combining parameters such as electrode area and ceramic thickness. Different ceramic materials and their internal structures will lead to differences in dielectric constants. In high-frequency circuit applications, the dielectric constant affects the transmission speed and delay of signals. For Special-Shaped Ceramic Structural Parts, their complex shapes may lead to uneven electric field distribution, which in turn affects the measurement accuracy of the dielectric constant. Reasonable modeling and correction methods are needed to improve the measurement accuracy.
Dielectric loss tangent measurement
The dielectric loss tangent is a parameter that reflects the energy loss of Special-Shaped Ceramic Structural Parts under an alternating electric field. It is measured using high-precision bridges or vector network analyzers. Under the action of an alternating electric field, energy loss occurs inside the ceramic due to processes such as polarization, which is related to the composition, crystal structure, and impurity content of the ceramic. For Special-Shaped Ceramic Structural Parts, due to their special shape, the propagation path of the electric field is complex, which may increase the local electric field strength, thereby affecting the value of the dielectric loss tangent. Accurately measuring this parameter helps to evaluate the heating and working efficiency of ceramic structural parts in complex electric field environments such as high frequency and high voltage.
Breakdown Voltage Test
The breakdown voltage test is crucial for evaluating the electrical strength of Special-Shaped Ceramic Structural Parts. The voltage is gradually increased until the ceramic breaks down, and the voltage value at this time is recorded. During the test, the effect of the shape of the Special-Shaped Ceramic Structural Parts on the concentration of the electric field should be considered, because sharp corners or irregular shapes may cause the local electric field strength to be too high, causing breakdown in advance. In addition, the uniformity and porosity of the ceramic material will also affect the breakdown voltage. This test can determine the safe voltage range of Special-Shaped Ceramic Structural Parts in actual use and ensure its stable operation in the electrical system.
