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Q: How do a photoelectric smoke sensor work?
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How does the sensor control smoke detector?

The smoke detectors use the photoelectric effect or a sensor based on the ionization differences between smoke and air.


Where can i find photoelectric smoke alarms?

You can find photoelectric smoke alarms at a hme improvement store. You should visit www.menards.com for more information on photoelectric smoke alarms.


What is difference between photoelectric sensor and proximity sensor?

photoelectric sensor-sense both metal & non-metal proximity sensor -sense metal only


Are photoelectric smoke alarms worth the cost?

Photoelectric smoke alarms will help you in the case of certain smoke being in the air. They can be found online at http://www.firesafetycouncil.com/pdf/review_on_best_sensor_type_for_kitchens.pdf.


What are Photoelectric detectors best used for?

Photoelectric detectors are best used for detecting smoke and fire in various settings such as homes, offices, and public buildings. These detectors work by detecting the presence of smoke particles in the air, triggering an alarm and allowing prompt action to be taken. They are particularly effective in detecting smoldering fires, which may produce more smoke before flames are visible.


Are there different types of smoke alarms, and how do I choose the right one for my home?

Yes, there are different types of smoke alarms, and choosing the right one for your home is a crucial part of effective smoke alarm installation. The main types of smoke alarms are ionization and photoelectric smoke alarms, and there are also dual-sensor alarms available. Ionization smoke alarms are more responsive to fast-burning fires, while photoelectric smoke alarms are better at detecting smoldering fires. Dual-sensor smoke alarms combine both technologies, offering comprehensive protection. When determining which type of smoke alarm to install during the smoke alarm installation process, consider the specific fire risks in your home. For instance, if you have a kitchen with cooking appliances, a photoelectric smoke alarm may be more suitable, as it is less likely to be triggered by cooking-related smoke. In areas prone to smoldering fires, such as near a fireplace, a photoelectric alarm is an excellent choice. For the most comprehensive protection, you might opt for dual-sensor smoke alarms. These are designed to detect a wide range of fire types effectively. Remember, during the smoke alarm installation process, follow the manufacturer's instructions for placement and spacing to ensure the alarms cover your home adequately. The right choice of smoke alarm type, along with proper installation, will greatly enhance the fire safety in your home.


What are the common smoke-sensing technologies?

There are two smoke-sensing technologies commonly used in residential smoke detectors: photoelectric and ionization


What is the difference between regular smoke alarms and photoelectric smoke alarms?

Photoelectric smoke alarms are also called optical alarms. They are more expensive than regular alarms. They are also more accurate and less likely to go off unnecessarily.


How does proximity sensor work?

Without physical contact detecting the presence of objects is the purpose of proximity sensors. They work based on inductive, magnetic, photoelectric and capacitive properties of objects.


What are some of the smoke-sensing technologies we used?

There are two smoke-sensing technologies commonly used in residential smoke detectors: photoelectric and ionization


What is a smoke alarm made out of?

Most smoke detectors work either by optical detection (photoelectric) or by physical process (ionization), while others use both detection methods to increase sensitivity to smoke. For the alarm part, in many single family detached and smaller multiple family housings, a smoke alarm is often powered only by a single disposable battery. An optical detector is a light sensor. When used as a smoke detector, it includes a light source (incandescent bulb or infrared LED), a lens to collimate the light into a beam, and a photodiode or other photoelectric sensor at an angle to the beam as a light detector. In the absence of smoke, the light passes in front of the detector in a straight line. When smoke enters the optical chamber across the path of the light beam, some light is scattered by the smoke particles, directing it at the sensor and thus triggering the alarm. An ionizing detector type of detector is cheaper than the optical detector; however, it is sometimes rejected because it is more prone to false alarms than photoelectric smoke detectors. It can detect particles of smoke that are too small to be visible. It includes about 37 kBq or 1 µCi of radioactive americium 241, corresponding to about 0.3 µg of the isotope. The radiation passes through an ionization chamber, an air-filled space between two electrodes, and permits a small, constant current between the electrodes. Any smoke that enters the chamber absorbs the alpha particles, which reduces the ionization and interrupts this current, setting off the alarm. From Wikipedia.


What does a smoke sensor do?

It is supposed to sense smoke.