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根据电化学原理，利用对氟离子敏感的 ＬａＦ_３单晶膜电极研制了以 ８０３１单片机为核心的智能测氟计。仪器除了可以自动测量氟离子浓度外，还具有ｐＨ值测定、自动温度补偿、自动定标、电极老化补偿、连续显示、随时打印等功能。整个测量及计算过程由单片机自动管理。用数字显示氟离子浓度、溶液ｐＨ值、毫伏电压及使用温度。此外，仪器还有自动数字调零、零漂自动抑制、非线性校正等电路。仪器电路简单可靠，与指针式仪器相比，提高了测量精度和抗干扰能力。
According to the electrochemical principle, the fluoride ion-sensitive LaF_3 single crystal membrane electrode was used to develop an intelligent measuring fluoride meter based on 8031 single-chip microcomputer. In addition to the instrument can automatically measure fluoride concentration, but also has a pH measurement, automatic temperature compensation, automatic calibration, electrode aging compensation, continuous display, print and other functions at any time. The entire measurement and calculation process automatically managed by the microcontroller. Fluoride concentration, solution pH, millivolt voltage and service temperature are shown numerically. In addition, the instrument also automatic digital zero, zero drift automatic suppression, non-linear correction circuit. The instrument circuit is simple and reliable, compared with the pointer instrument, improve the measurement accuracy and anti-interference ability.