摘要:
A capacitor having air dielectric between its plates may be used to detect the presence of smoke and other contaminants in the dielectric air passing over the plates of the capacitor. Smoke from typical fires is mainly composed of unburned carbon that has diffused in the surrounding air and rises with the heat of the fire. The permittivity of the carbon particles is about 10 to 15 times the permittivity of clean air. The addition of the carbon particles into the air creates a change in the permittivity thereof that is large enough to measure by measuring a change in capacitance of the capacitor having the air dielectric through which the air laden carbon particles pass through.
摘要:
A capacitor having air dielectric between its plates may be used to detect the presence of smoke and other contaminants in the dielectric air passing over the plates of the capacitor. Smoke from typical fires is mainly composed of unburned carbon that has diffused in the surrounding air and rises with the heat of the fire. The permittivity of the carbon particles is about 10 to 15 times the permittivity of clean air. The addition of the carbon particles into the air creates a change in the permittivity thereof that is large enough to measure by measuring a change in capacitance of the capacitor having the air dielectric through which the air laden carbon particles pass through.
摘要:
Disclosed herein is a method of operating a remote control system having a touch interface. The method comprises receiving a user input through the touch interface, generating a control communication corresponding to the user input and transferring the control communication from a communication transceiver to remotely control a display of content on a video display system, receiving into the communication transceiver supplemental content for display on the touch interface, and displaying the supplemental content on the touch interface while the video display system displays the content.
摘要:
Disclosed herein is a method of operating a remote control system having a touch interface. The method comprises receiving a user input through the touch interface, generating a control communication corresponding to the user input and transferring the control communication from a communication transceiver to remotely control a display of content on a video display system, receiving into the communication transceiver supplemental content for display on the touch interface, and displaying the supplemental content on the touch interface while the video display system displays the content.