Surface Acoustic Wave Sensors
Surface acoustic wave (SAW) sensors are electronic devices that are used to measure physical properties such as temperature, pressure, and humidity. They are based on the principle of surface acoustic waves, which are waves that propagate along the surface of a solid material. SAW sensors are highly sensitive and can detect very small changes in the physical properties of the material.
Moisture Measurement
One of the most important applications of SAW sensors is in the measurement of moisture. SAW sensors can be used to detect the presence of moisture in a variety of materials, including soil, food, and paper. This information can be used to control the moisture content of these materials or to detect water damage.
Advantages of SAW Sensors
SAW sensors offer a number of advantages over other types of sensors, including:
- High sensitivity
- Small size
- Low cost
- Easy to use
- Non-destructive
Applications of SAW Sensors
SAW sensors are used in a wide variety of applications, including:
- Moisture measurement
- Temperature measurement
- Pressure measurement
- Chemical sensing
- Medical diagnostics