Optically Switched Sensors Work Successfully Using Snell’s Law, Snell’s law is used to predict how a beam of light will refract or change direction as it travels from one substance to another. θ symbolizes (left figure) the point between the direction of the light glow and a typical line (defined as the line vertical to the two sides at the point where the light beam goes from one element to another. When light travels d ‘a medium with a refractive index into a second medium with a refractive index, both reflection and refraction of light can occur.
refractive index
Optical switches work by sensing the difference in refractive index between various media, causing different degrees of refraction. All transferred light is displayed back to the receiver when the fluid is not in connection with the pressure sensitive film. When the sensor is immersed in a liquid, light scatters everywhere and less is reflected back to the transistor. The amount of light reflected back to the transistor affects output levels, making point level detection possible.
Optically Switched Sensors
However, although extremely accurate for point-level detection in high-stress environments, they are less useful for continuous level measurement. When light travels d ‘a medium with a refractive index into a second medium with a refractive index, both reflection and refraction of light can occur.However, although extremely accurate for point-level detection in high-stress environments, they are less useful for continuous level measurement. Additionally, optical level sensors are not suitable for applications where top mounting is require. when mount on top, precision optical level sensors can be affect by moisture condensation
Optical liquid level sensors
Optical liquid level sensors from Strain Measurement Devices consist of two main parts: an infrared LED coupled to a light transistor and a transparent prism tip. The LED projects infrared light outwards; when the sensor tip is surround by air, light reacts by bouncing around inside the tip before returning to the transistor. The main advantages of optical level sensors are their compact size, lack of moving parts, and low cost. However, although extremely accurate for point-level detection in high-stress environments, they are less useful for continuous level measurement.When the sensor is immerse in a liquid, light scatters everywhere and less is reflect back to the transistor. The amount of light reflected back to the transistor affects output levels, making point level detection possible. However, although extremely accurate for point-level detection in high-stress environments, they are less useful for continuous level measurement. The amount of light reflected back to the transistor affects output levels, making point level detection possible. However, although extremely accurate for point-level detection in high-stress environments, they are less useful for continuous level measurement. The amount of light reflected back to the transistor affects output levels, making point level detection possible. pressure indicating film can work together seamlessly.
Strain Measurement Devices
However, although extremely accurate for point-level detection in high-stress environments, they are less useful for continuous level measurement. The amount of light reflected back to the transistor affects output levels, making point level detection possible. However, although extremely accurate for point-level detection in high-stress environments, they are less useful for continuous level measurement. The amount of light reflected back to the transistor affects output levels, making point level detection possible. When the sensor is immerses in a liquid, light scatters everywhere and less is reflect back to the transistor. The amount of light reflected back to the transistor affects output levels, making point level detection possible.. When the sensor is immerse in a liquid, light scatters everywhere and less is reflect back to the transistor. The amount of light reflected back to the transistor affects output levels, making point level detection possible..
