What Is The Antimony Electrode Acidity Sensor?

Antimony electrode acidity
Antimony electrode acidity sensor is an industrial online analyzer that integrates PH detection, automatic cleaning, and electrical signal conversion. It is a PH value measurement system composed of an antimony electrode and a reference electrode. In the measured acidic solution, an antimony trioxide oxide layer will be generated on the surface of the antimony electrode, so a potential difference will be formed between the metal antimony surface and the antimony trioxide. The size of this potential difference depends on the concentration of antimony trioxide, which corresponds to the degree of hydrogen ions in the measured acidic solution. If the degree of antimony, antimony trioxide and aqueous solution is regarded as 1, the electrode potential can be calculated using the Nernst formula.
The solid module circuit in the antimony electrode acidity sensor consists of two parts. For the safety of the field effect, the power supply part uses AC 24V to power the secondary instrument. In addition to providing driving power for the cleaning motor, this power supply should also be converted into a corresponding DC voltage through a current conversion unit for use by the transmission circuit. The second part is the measurement sensor circuit, which sends the reference signal and the PH acidity signal from the sensor to the slope adjustment and positioning adjustment circuit after amplification to reduce the signal internal resistance and make it adjustable. The amplified PH signal is superimposed with the temperature compensated signal and then input into the conversion circuit, and finally a 4-20mA constant current signal corresponding to the PH value is output to the secondary instrument to display and control the PH value.