Abstract
A simple fiber optic technique is developed for the remote measurement of the liquid level. It utilizes the static pressure, applied by the liquid, to measure the liquid level. A diaphragm type basic sensor is used to convert the pressure into deflection and deflection of the diaphragm is used to modulate the light falling on it. The resulting optical signal, containing information about the liquid level, travels through the optical fiber up to the earth station where it is converted into electrical signal, by the receiver, based on photo diode. It has been calibrated up to 70 cm depth in a water tank when the receiver is kept at a distance of 20 meters.
| Original language | English |
|---|---|
| Pages (from-to) | 799-802 |
| Number of pages | 4 |
| Journal | Optoelectronics and Advanced Materials, Rapid Communications |
| Volume | 4 |
| Issue number | 6 |
| Publication status | Published - Jun 2010 |
| Externally published | Yes |
Keywords
- Fiber optic sensors
- Intensity modulation
- Liquid level
- Pressure measurement