Oxygen Sensor for PSA Oxygen Concentrator

Innovation with UltrasonicTechnology

What is PSA Oxygen Concentrator?

PSA Oxygen concentrator has been widely used in personal and medical treatment for oxygen supply.

It adopts PSA technology to separate the O2 and N2 in air to proceed continuous O2 supply.

During the oxygen supply, PSA oxygen concentrator needs oxygen sensor to detect the concentration and flow range. Ultrasonic oxygen sensor has been widely used in PSA oxygen generator to measure the oxygen concentration and flow.

Normally, the purity of oxygen concentrator is less than 95%, because during the air separation, there is also gas like Ar, CO2 apart from O2 and N2. It is different from oxygen cylinder and have no 100% pure oxygen environment.

Why We Should Use Ultrasonic Oxygen Sensor ?

Ultrasonic oxygen sensor uses the ultrasonic velocity difference between upstream and downstream to detect the gas flow and also the oxygen purity for oxygen concentrator. It is generally used for testing the oxygen concentration of binary mixture such as A (oxygen) In A+B ( A and B have different density and different travel speed). A is oxygen, and B is usually N2 or air.

Advantages

◆No need of routine calibration

◆ Reliable and low cost

◆Small size, stability, high precision

◆Long life-span (>5years)

Ultrasonic Technology Introduction

◆ Ultrasonic flow detection theory

When the ultrasonic wave transmits in the fluid, it will carry flow velocity under the influence of fluid velocity. Fluid velocity can be measured by detecting the received ultrasonic signal to obtain the fluid flow rate.

The feature of ultrasonic flow measurement is no obstructing fluid flow, etc.

◆ Ultrasonic concentration detection theory

When the binary gas mixture composition has molecular weight difference, sound travel speed varies from different gas composition.

Ultrasonic technology is used for testing the concentration of binary mixture such as A in A+B ( A and B have different density and different travel speed).

Wuhan Cubic-Ultrasonic Technology Oxygen Sensor Series

Gasboard7500B for Oxygen purity measurement

Gasboard7500E for Oxygen purity and flow measurement together

Details

Wuhan, Hubei, China

Wuhan Cubic

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