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]
The invention provides an apparatus for measuring the dynamic thermal and moisture transfer of textile fabric, and comprises a bionics model component, at least a group of second sensors and a data collecting and controlling device. The bionics model component includes a heat retainer, a sweat disch.....
[Detail]
An anti-counterfeit system and method for passive radio frequency label are disclosed, the system includes: the anti-counterfeit module of label, by the user interface, the production owner adopts the general international coding scheme to convert the true EPC code into the fake EPC code and the fak.....
[Detail]
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