Product Introduction
I. WQ-FDOOptical Dissolved Oxygen SensorDescription:
The WQ-FDO optical sensor is an instrument designed to measure liquid concentration. The optical sensor was developed to meet the needs of applications ranging from surface water monitoring programs to wastewater applications. The WQ-FDO is specifically designed to meet the environmental requirements of monitoring and scientific research fields, providing long-term, accurate, and reliable dissolved oxygen measurement. The sensor's extremely low power requirements and 4-20 mA output make it suitable for integration into remote environmental monitoring facilities.
II. How the WQ-FDO Optical Dissolved Oxygen Sensor Works:
The WQ-FDO optical sensor measures oxygen based on the attenuation of a fluorescent signal measured over a defined time frame. The fluorescent dye in the sensor membrane is stimulated by a short-wavelength light source. Upon returning to the passive state, it emits long-wavelength light, which is recorded as the measurement signal. If oxygen contacts the dye through diffusion, the backscattered light period is shortened according to the sample's oxygen concentration. The optical measurement is essentially a highly precise time measurement. To handle these time measurements as precisely as possible, the sensor optically calibrates the speed of light.
III. WQ-FDO Optical Dissolved Oxygen Sensor Features:
Very fast and accurate optical sensor
Excellent for field and laboratory applications
Proven green light technology for long sensor life
Low power consumption and low maintenance
Easy integration and operation
