Salt spray test chamber failure and treatment method Because the salt spray test box has long been used for salt spray aging test, the environment is bad and it is easy to cause large and small faults in the salt spray test machine. In order to solve the fault quickly, the salt spray aging test can continue smoothly. The following is a detailed description of some common faults and treatments.

First, the laboratory can not rise to the set temperature. Causes of failure: 1. The temperature of the test room temperature controller is set too low; 2. The test room safety protection switch setting is too low; 3. The heating system is faulty; 4. Electromagnetic Relay failure; 5. Controller failure.

Treatment method: 1. Set the temperature controller to the required temperature; 2. Set the safety protection switch to the required temperature; 3.4.5. Inform the maintenance company to repair the door.

Second, the amount of spray is insufficient. Causes: 1. The spray regulator is placed too low; 2. The glass filter in the preheating tank is blocked; 3. The pressure setting is too low.

Treatment method: 1. Increase the spray regulator; 2. Clean the glass filter; 3. Adjust the pressure regulator to a pressure of 1Kg per square centimeter, and press the pressure regulator on the air compressor to adjust to 2Kg. Pressure per square centimeter.

Third, the temperature of the saturated barrel can not rise to the set temperature. Causes: 1. The temperature of the saturated barrel temperature controller is too low; 2. The setting of the safety protection switch of the saturated barrel is too low; 3. The heating system is faulty; 4. The electromagnetic relay is faulty; 5. Controller failure.

Treatment method: 1. Set the temperature controller to the required temperature; 2. Set the safety protection switch to the required temperature; 3.4.5. Inform the maintenance company to repair the door.

4. When the water level is low, the alarm light is on. The cause of the failure is: the water level is too low.

Treatment: Check if the test chamber or saturated tank is adequately water level.

5. It can't run after turning on the power. Cause: When the water level in the heating tank is too low, the power supply will be cut off.

Treatment method: Add the water level of the heating tank to the normal condition.

Sixth, there is a normal spray and the air compressor is not running. Cause: The air compressor itself has the function of self-protection.

Treatment: Use as usual without affecting the test process.

VII, unable to spray failure reasons: 1. The air compressor is not running; 2. The main switch of the air compressor outlet is not open; 3. The solenoid valve is faulty; 4. The pressure gauge is faulty or the pressure is too low; 5. The electromagnetic contactor is faulty; 6. Nozzle blockage;

Treatment method: 1. Open the air compressor button; 2. Open the air compressor main switch; 3.4.5. Inform the maintenance company to repair the door; 6. Remove the nozzle and clean it (please disassemble it carefully).

Eight, when the temperature controller shows HHH, LLL

The cause of the malfunction: the temperature controller is faulty and the temperature sensing rod is faulty.

Treatment method: notify the maintenance company to repair the door.

Photoacoustic Imaging

nstrument Imaging mode: 1-2-3D real time display Locating system: Three dimensional motor platform Scanning mode: 2Dgalvanometric scanning system Lateral resolution: 3.8 um Axial resolution: 4I um Image depth: 0-2 mm Speed: 1-50 frame/s


Instrument

Imaging mode: 1-2-3D, real time display

Locating system: Three dimensional motor platform

Scanning mode: 2Dgalvanometric scanning system

Lateral resolution: 3.8 um

Axial resolution: 4I um

Image depth: 0-2 mm

Speed: 1-50 frame/s



Clinical PW A detection

Port wine stains ( PWS ) is always a birthmark . It is caused by a vascular anomaly. PA imaging could provide real-time information about the thickness of the skin and diameter. depth, distribution of blood vessel , which provide significant help with clinical diagnosis and treatment.


PAI VS. OCT

Image depth : PA 2 mm

OCT 0.4 mm

Functional identification : With optical fingerprint characteristics ,P A could specificity imaging blood vessels , eliminates the interference of hair follicle, sebaceous glands.




The clinical testing has been carried out in 301 and guangzhou military general hospital , testing and statistic all kinds of PWS lesions in patients with vasculal parameters , in order to establish the classification and quantitative treatment of PWS.


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Guangzhou Sonostar Technologies Co., Limited , https://www.sonoeye.com