The pH sensors used in this replication had a resolution of 0.001, and each sensor was calibrated several times using a standard three-point calibration procedure (Atlas Scientific calibration ...

The University of Glasgow has created a pH sensor for soil testing that can be composted at the end of its life. It is an impedance-based sensor, using screen-printed interdigitated carbon-based ...

A pH-sensitive hydrogel functioned as the transducer, connecting to a mechanically designed inductor-capacitor circuit, enabling wireless reading.

Fig. 1 illustrates the authors’ prototype showcasing various aspects of the setup and its installation. Monitoring the pH value is crucial for maintaining optimal conditions for plant growth. The ...

More information: Weiyu Xiao et al, Iridium oxide and cobalt hydroxide microfluidic-based potentiometric pH sensor, Microchimica Acta (2023). DOI: 10.1007/s00604-023-06035-z ...

Nov 03, 2023 Chemists develop new sensor for microvolume pH detection (Nanowerk News) Measuring the pH of substances gives us vital clues about the world around us, such as identifying contaminated ...

A graduate student at Southern Methodist University (SMU), has developed a miniature pH sensor that can detect when food has spoiled in real-time. The 2-millimeter long and 10-millimeter wide ...

This circuit is an especially simple op-amp application, and is a typical one for a sensor interface where a DC voltage needs to be brought into range of a microcontroller.

Equation (4) is nearly a linear relationship between the measured voltage and pH, with a slope of approximately 59.16 mV/pH at 25°C. The basic construction of a pH sensor includes certain components, ...

Why high-purity water shortens pH sensor life pH is a measure of the concentration of hydrogen ions in a fluid. Typically, pH is measured by potentiometric glass pH sensors. They function by producing ...