B不正确。因为感温探测器(heat-activated detectors)可以设置为当达到预先设定的温度(固定温度)时或者温度升高持续了一段时间(上升率)时响起警报。上升率温度传感器因为更加敏感,所以通常比固定温度传感器发出警报的速度快,但有时也会造成虚假警报。C不正确。因为红外火焰探测器(infrared flame detector)探测火焰排放,并...
if there is no flame, electrode on the power supply will stop, if there is a fire, gas is its high ionization, ion current to flow between the electrodes, flame and combustion head, ion current rectifier into a dc, and through the grounding of the burner shells ...
offices, schools, and industries. Smoke Detectors are extraordinarily useful devices because the damage caused by fire accidents is catastrophic. Nowadays, smoke detectors and smoke alarms are very low-priced as their usage is increasing and the cost of manufacturing is...
and a second signal each corresponding to an ambient condition indicative of a possible fire; a control circuit (12), coupled to said detectors, which includes a processing circuit (14) which combines said signals to produce an interval for delaying generation of an alarm (32) by the system....
Final Words Sensors can change the way of our vision by enabling safe and swift access to technology. From early morning to late night, wherever we are, we can use things that run with or depend on these sensors. In this blog, I have discussed a lot of different types of sensors with...
For example, consider a house fire. A young infant, preschooler, and adolescent are sleeping upstairs in house when a fire breaks out in the middle of the night. The smoke detectors begin to alarm. Each 88 P. N. Severin and P. A. Jacobson child is awoken by the ensuing noise and ...
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There are several types of alarm systems for a home or business. Some alarms just provide equipment that will signal if the alarm is triggered. Others come with equipment and a security monitoring service. Each one may have different installation requirements and different costs.
consider a house fire. A young infant, preschooler, and adolescent are sleeping upstairs in house when a fire breaks out in the middle of the night. The smoke detectors begin to alarm. Each child is awoken by the ensuing noise and chaos. Based on the development, the adolescent will most...
Thermal module is the core of a thermal camera, consisting of infrared detector and processing circuits. InfiRay® thermal modules adopts self-developed high-performance infrared detectors for ultra-clear thermal imaging and sccurate temperature measurement....