4results about How to "High resistance precision" patented technology

This solution provides a design method and electronic device for composite resistive pastes with target resistance values. It uses the resistance parameter sets and mixing ratios of each composite resistive paste and corresponding first and second resistive pastes as training data sets. The training data sets and parameter acquisition instructions are input into a regression prediction model for training, outputting optimized resistance parameters and the optimal number of regression equation terms. The target resistance value of the composite resistive paste and the optimized resistance parameters of the first and second resistive pastes are used as prediction parameter sets. The prediction parameter sets and prediction instructions are input into the trained regression prediction model, outputting the predicted mixing ratio of the first and second resistive pastes, thereby achieving efficient design of composite resistive pastes with target resistance values.

The invention discloses a manufacturing method suitable for an alloy foil resistor. The manufacturing method comprises the following steps: 1, curing a substrate and pasting a film; 2, pattern transfer; 3, developing, etching and removing the film; 4, printing a protective layer before rack plating; 5, exposing and developing the protective layer before rack plating; 6, rack plating; 7, plating bridge cutting; 8, precisely adjusting the resistance; 9, printing a protective layer; 10, marking and printing; 11, the protection layer mark is cured; 12, laser scribing; 13, performing primary segmentation; 14, performing vacuum sputtering; 15, carrying out secondary segmentation; sixthly, barrel plating of copper, nickel and tin is conducted. According to the invention, by introducing an innovative alloy foil resistor manufacturing process, the resistance precision of the alloy foil resistor is greatly improved, the purpose of automatic resistance adjustment of the high-precision alloy foil resistor is achieved, and the stability and consistency of the product are improved.

The application provides a platinum thin film and a manufacturing method thereof, and the manufacturing method comprises the following steps: performing chemical mechanical polishing treatment on a ceramic substrate by using a polishing liquid to obtain a ceramic substrate with a predetermined roughness; depositing a platinum thin film on the ceramic substrate by using a magnetron sputtering method at a predetermined substrate temperature; and performing annealing treatment on the platinum thin film. The platinum thin film prepared by using the chemical mechanical polishing treatment and the multiple sputtering method has the advantages of thin thickness, low square resistance, high uniformity and low cost, and the electrical performance of the platinum thin film with thin thickness is equivalent to that of a thick film, the production cost is reduced while the good performance is ensured. Therefore, when the platinum thin film is applied to a resistance temperature sensor, the resistance temperature sensor can not only meet the requirement of accurate measurement of the environmental temperature of the resistance temperature sensor product, but also reduce the production cost of the resistance temperature sensor and improve the production efficiency.

This utility model relates to the field of stainless steel resistance regulators and discloses a resistance regulator, comprising a resistance regulator with two outer shells on both sides, which are connected by a second outer shell. A base plate is installed at the bottom of the resistance regulator, and a heat dissipation vent is provided on the outer side of the second outer shell. A high-power stainless steel resistance regulator is used to replace the wire diameter resistor, and the resistance value can be adjusted to replace the change in wire diameter and length. The regulator has a certain resistance value sliding adjustment function. Utilizing Ohm's law, U=IR, voltage is the product of current and resistance. When the resistance R is fixed, the larger the current flowing through the resistor, the larger the voltage drop. Therefore, various voltages can be generated across the resistor by changing the resistance, which meets the output voltage and current index verification of various constant current source power supplies. The stainless steel resistance regulator has high resistance accuracy during field testing, and its operation is simple and the process is simplified.