ISFET pH: Development and Thermal Compensation for Stable Continuous Measurements
09-Dec-2025 |
78 views
In industrial and laboratory process monitoring, continuous pH measurement is a crucial parameter to ensure quality, safety, and control. ISFET sensors are emerging as an advanced solution compared to traditional electrodes, thanks to their fast response, robustness, and ease of integration into automated systems.
An effective ISFET sensor must address the challenge of temperature variations, which can affect measurement accuracy. Dynamic thermal compensation, combined with automatic calibration algorithms, allows reliable data to be maintained even in the presence of thermal fluctuations, enabling the sensor to operate continuously without frequent manual intervention.
This technology opens significant opportunities for industrial and laboratory applications, where constant pH monitoring is essential for controlling chemical, biological, or environmental processes. Integration with IoT platforms allows real-time data collection, analysis, and immediate alerts in case of anomalies, optimizing processes and reducing operational risks.
Key advantages of ISFET sensors with thermal compensation:
- Stable and accurate measurements even under variable thermal conditions.
- Reduced manual maintenance and corrective interventions.
- Easy integration with IoT platforms for continuous monitoring.
- Versatile applications in process chemistry, aquaculture, and water treatment.
Practical example:
In an aquaculture facility, a thermally compensated ISFET sensor was installed to monitor the pH of the tank water. The system detects immediate chemical variations and sends alerts to the control center via MQTT.
In one case, a gradual pH drop was detected before levels became critical, allowing timely chemical adjustments, preventing stress to the organisms, and optimizing facility management.
