Laser Detection of Explosive(Including Methane), Poisonous Gas

  Xuhai supplies a comprehensive device/module-in-set solutions for customers based on TDLAS technology to detect explosive and poisonous gases. We supply laser, gas cell, PD,laser point sensor assembly and remote detection assembly to three detection systems such as on-line laser point sensor type system, fiber distributed type on-line detection system and laser remote detection system.

   Laser gas detection shows advantage in long product lift(5-10years), no maintenance/calibration and no false alarm compared with sensors based on other technologies.

Multiple Channels Fiber Distribution Type On-Line Gas Detection System

   Distribution type detection system has two advantages:

1)  Multiple(32pcs) optical passive detectors can share one laser which can reduce cost of components.

2)  Passive detection without power supply and electrical signal in testing point site

      But distribution type has high fiber deploying cost and low security. Because if the laser doesn’t work, the whole system fails to work. But customers can delploy a backup laser to prevent such situation.

      Though this system need deploy fibes resource which will trigger cost increase because of fiber deploying,  for comprehensive pipe and coal mine site, its fibers resource need to be deployed whether you will install this system or not. So the total cost is low for such special condition. If customers is not senstive to deploying cost or the testing site need purely passive detection, fiber distribution type is the best choice.

Laser Point Type Gas Detection System

Compared with Fiber distribution type, laser point type shows advantages in items listed as below: 

1) low cost in deploying cost; 2) high security (every sensor can work individually) 3) Easy to integrated into IOT

     But Laser point type has higher cost because each testing point need one laser each. Xuhai can supply flexible solution (components, assembly or modules) for laser point gas type detection system. Xuhai can supply laser, gas cell, PD, optical assembly and whole laser point gas sensor to customer based on customers’ requirement.

     The point gas sensor without refernece gas cell is avaliable. The product with reference gas cell can also be developed based on customer’s requirement. 

 Laser Remote Type Gas Detection System

 Laser Remote Type detection system shows advantages in items listed as below:

1) Portable(Small Package) ; 2) Long detection Distance without people’s reaching the place ; 3) Fast response

Laser remote type gas detection is suitable for manual/vehicle/UAV patrol of gas leakage. Xuhai can supply flexible solution (components or assembly) for laser remote type gas detection system. Xuhai can supply laser, laser remote optical assembly to customer based on customers’ requirement. 

（Note：1 Xuhai supply the product for CH₄ detection and products for other gases will come Out 1st half year 2020.）