3results about How to "Not easy to harm" patented technology

The utility model relates to a kind of load impedance measurement circuit, system and equipment, including waveform control circuit, load impedance acquisition circuit, signal amplification circuit, analog signal conversion PWM circuit, filter circuit and MCU connected in turn;Waveform control circuit includes self-oscillation circuit and rectangular wave output circuit, rectangular wave output circuit receives the rectangular wave that self-oscillation circuit exports and reference voltage comparison generates complementary rectangular wave output to load impedance acquisition circuit, load impedance acquisition circuit gathers load impedance and exports direct current signal to signal amplification circuit, analog signal conversion PWM circuit gathers amplified signal conversion as digital signal to filter circuit and carries out filter processing, and MCU receives the signal after filter processing of filter circuit.The utility model uses self-oscillation and complementary rectangular wave output circuit to form sampling circuit combination, the signal gathered is more accurate, and it is easy to be read and further processed by lower circuit, and finally the impedance measurement value of equipment is more accurate.

This utility model discloses a waste gas treatment device for the production of ferrite cores, relating to the field of waste gas treatment device design technology. It includes a fixed support plate, an impurity adsorption unit, and a waste gas purification body. A stable support leg is fixedly connected to each of the four corners of the lower surface of the fixed support plate. An impurity adsorption unit is provided on the upper surface of the fixed support plate, and the four corners of the fixed support plate are chamfered. The waste gas purification body includes a waste gas purification tower, a partition plate, a spray head, a water pump, a limiting plate, and a purification filter element. A waste gas purification tower is fixedly connected to the upper surface of the fixed support plate at the right side of the impurity adsorption unit. This device can treat the waste gas generated during the production of ferrite cores, preventing environmental pollution and minimizing harm to humans. The filter element is also easy to replace.

This invention relates to the field of microwave dielectric materials technology, and provides a niobium pentoxide-doped zinc borosilicate microcrystalline glass and its preparation method. This invention reduces the melting and volatilization of boron oxide and the formation of zinc borate by designing a low-boron zinc borosilicate microcrystalline glass formulation; and by introducing niobium pentoxide, utilizing Nb... 5+ The high electric field strength disrupts the original structural units in the glass structure, reconstructs the glass network structure, and thus modulates the dielectric properties of the glass-ceramic. Furthermore, the introduction of niobium pentoxide can regulate the glass crystallization characteristics, resulting in a glass-ceramic with a lower sintering temperature and better density. The results of the embodiments show that the dielectric constant of the niobium pentoxide-doped zinc borosilicate glass-ceramic obtained by sintering at 925℃ for 30 min is in the range of 4.4–6.1, and the dielectric loss is in the range of (0.48–5.36) × 10⁻⁶. ‑3 (between 1MHz)