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What kind of temperature detector consists of a calibrated wire enclosed in a protective shield?
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Can a smoke detector sound from heat only?
Then it wouldn't be a smoke detector, but there are fire alarms that are triggered by temperature.
What is a heat detector?
A heat detector is connected to a fire alarm system. It is designed to respond when the heat sensitive element has increased temperature due to a fire.
How does a curtain passive infrared detector work?
Infrared detectors work on the principle of heat.The detector aims multiple beams of infrared waves or "curtains" into the detection path.The detector is looking for the difference in temperature between each "curtain". If there is no body heat present, all "curtains" will have the same temperature. If the difference exceeds a predetermined threshhold, a circuit is tripped.
What is the difference between radiation monitors and radiation detector?
The detector refers to the component that actually does the detecting. The monitor is the detector plus all the other stuff that comes with it that lets people monitor the levels of radiation.
When was the first carbon monoxide detector invented?
The earliest patent for a carbon monoxide detector was from 1927. But, it wasn't until 1993 that First Alert introduced the first detector.
How does an RTD measure temperature?
An RTD, or resistance temperature detector is based in the principal that the resistance of a conductor changes as its temperature changes. The RTD consists of a long length of fine coiled wire made from some pure material such as nickel, platinum or copper. The coil is in the form of a probe and may be encased in a protective sheath. The wire material has a known response - in how its resistance changes with temerature - and this known change is used to determine temperature.
What is an IR Thermometer and what does it do?
The most basic design consists of a lens to focus the infrared (IR) energy on to a detector, which converts the energy to an electrical signal that can be displayed in units of temperature after being compensated for ambient temperature variation.
What detector can detect temperature?
thermometer
Can a smoke detector sound from heat only?
Then it wouldn't be a smoke detector, but there are fire alarms that are triggered by temperature.
If the resistance temperature detector fails. What increases?
resistance
What does pll consists of?
PLL stands Phase Locked Loop . It consists of phase detector,low pass filter,voltage controlled oscillator,error amplifier
What is a heat detector?
A heat detector is connected to a fire alarm system. It is designed to respond when the heat sensitive element has increased temperature due to a fire.
which is top Metal Detector?
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which mask is Protective ?
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What are Two type of heat detectors are?
They are: -Rate of Rise -Fixed Temperature Rate of rise detectors can be adjusted to different temperature settings to which detect heat. Once the temperature in that area reaches your chosen point, it will activate the heat detector. Fixed Temperature is when you buy a heat detector, it only has one fixed detection point on it. So you cannot adjust this.
How does a curtain passive infrared detector work?
Infrared detectors work on the principle of heat.The detector aims multiple beams of infrared waves or "curtains" into the detection path.The detector is looking for the difference in temperature between each "curtain". If there is no body heat present, all "curtains" will have the same temperature. If the difference exceeds a predetermined threshhold, a circuit is tripped.
Explain why americium-241 would be an ideal isotope to use in a smoke detector?
Alpha particles from americium ionized the air. An air with smoke has a different ionization, ionization currents which are also different are measured, compared and the detector (which is before calibrated) is ready !
