An aqueous cleaner, the use of ozone gas as the disinfectant for cleaning aquarium / aquarium / water in the tank, the purifier includes a housing, the impurity collecting tube, inner tube, support tube and a gas feed pipe, the gas inlet pipe connected to the ozone generator, ozone gas to enter. Ozo.....
[Detail]
A Chinese-medicinal pulse state sensor, a pulse state tester with closed-loop control for testing the pulse pressure, and its test method are disclosed. Said pulse state sensor has a probe and two ormore strain beams with both ends fixed to the surface of said probe and the semiconductor strain foil.....
[Detail]
The invention provides a cascade controller with analog single-phase active power filter, which includes a control circuit and connected to the main circuit, the control circuit includes a first proportional integral controller, a multiplier, a subtractor, feedforward control , a second PI controlle.....
[Detail]
The utility model provides a dozing detection alarm which comprises a brain wave data acquisition unit which comprises an electrode contacting the heads of detected people, a signal processing circuit, an alarm device and a digital signal processor which is respectively connected with the brain wave.....
[Detail]
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