No.4
Fiber sensor application examples
Level detection of liquids in semi-transparent containers
Problem: Detection of liquid levels not always possible
Using ultrasonic sensors to detect liquid levels in semi-transparent containers requires replacing the nozzle and the ultrasonic sensor.
The inability to detect liquid levels when injecting or discharging liquid using a nozzle makes for a very inconvenient setup.
Solution: External detection using a water detection amplifier and unit
With the D3IF series water detection fiber amplifier and the NF-TW01 fiber unit, liquid levels can be detected from outside the semi-transparent container.
The D3IF-TN water detection amplifier uses an infrared LED with a wavelength absorbed by water (1.45 μm) for the light source.
When used with the NF-TW01 water detection unit (through-beam type), this amplifier enables detection of liquid levels from outside a semi-transparent container.
With two amplifiers, detection of full (injecting stop), a specified fill amount, and an absence of liquid (injection start) are possible.
Detection from outside the semi-transparent container means replacing the nozzle is unnecessary, allowing for liquid levels to be detected even when injecting or discharging liquid.
