Automatic Grinding and Testing Method for NTC Resistors

By constructing a closed-loop control system and fuzzy algorithm, combined with the lever principle and temperature compensation of the constant temperature water bath, the problems of insufficient automation and the influence of ambient temperature in NTC resistor processing were solved, and efficient and precise resistor processing was achieved.

CN120784063BActive Publication Date: 2026-07-17安能芯数字科技(杭州)有限公司
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Patent Information

Application Number
CN202510956837.1
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2025-07-11
Publication Date
2026-07-17
Estimated Expiration
2045-07-11

AI Technical Summary

Technical Problem

Existing NTC resistor processing equipment suffers from insufficient automation, environmental temperature affects processing accuracy, poor equipment adaptability, and a lack of real-time quality monitoring, resulting in inadequate production efficiency and precision control.

Method used

By employing hardware and software collaborative control technology, and combining a high-precision digital multimeter with a CNC grinding wheel, a closed-loop control system is constructed. Fuzzy algorithms are used for real-time data acquisition and feedback adjustment. An automatic friction grinding machine is designed based on the lever principle to monitor and adjust the contact force in real time. A constant temperature water bath is introduced for temperature compensation.

Benefits of technology

It enables precise processing control of NTC resistors, improves production efficiency and accuracy, reduces the impact of uncontrollable factors in manual operation, and provides reliable support for mass production.

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Abstract

This invention relates to the field of negative temperature coefficient (NTC) technology, specifically disclosing an automatic grinding and testing method for NTC resistors. The method includes the following steps: connecting a host computer to a multimeter to form a data detection module; connecting the host computer and the multimeter via serial communication and initializing both; the host computer sending control commands to the multimeter, which then performs the measurement task and transmits the measured data back to the host computer; the host computer analyzing and storing the data; setting the contact force threshold for the next grinding operation based on the resistance value; dynamically balancing the automatic grinding machine; and, based on the grinding data, returning the status to the host computer upon completion of grinding. This achieves precise control of the processing process and effectively solves the problems of low efficiency and insufficient accuracy caused by the separation of processing and testing in traditional processes.
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