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Easy as piadcs: A low-cost, ultra-high-resolution data acquisition system using a Raspberry Pi.
1Department of Plant Sciences, University of California Davis, One Shields Avenue Davis California 95616 USA.
Applications in Plant Sciences
|July 1, 2022
Summary
Researchers developed an affordable, high-precision data acquisition (DAQ) system using Raspberry Pi and an ultra-high-resolution analog-to-digital converter for plant science research. This flexible system offers precise physiological measurements and can be built with basic skills.
Area of Science:
- Plant Sciences
- Biotechnology
- Instrumentation
Background:
- High-precision data acquisition (DAQ) is crucial for advancing plant science methodologies.
- Existing commercial DAQ systems are often prohibitively expensive.
- Lower-cost alternatives lack the necessary resolution and precision for physiological measurements.
Purpose of the Study:
- To develop an inexpensive, high-resolution DAQ system suitable for plant science research.
- To create a flexible and accessible system for researchers with basic technical skills.
Main Methods:
- Designed a DAQ system utilizing an ultra-high-resolution analog-to-digital converter and a Raspberry Pi.
- Developed associated software libraries named piadcs.
- Tested system precision with and without a thermocouple sensor.
Main Results:
- Achieved a precision better than ±0.01°C with a thermocouple attached.
- Determined the maximum possible system resolution to be 0.4 parts per million (ppm).
Conclusions:
- The developed DAQ system is cost-effective, adaptable to various sensors, and constructible by individuals with basic electronic and computer expertise.
- This system is ideal for creating novel measurement techniques and enhancing existing ones in plant science.
