What is an o2 sensor?
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Oxygen Sensor - an electronic device that measures the proportion of oxygen in the gas.
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O2 is an energy-rich oxidizing substance.  Sugar and fat are both energy-rich reducing substances.  When an oxidizer and a reducer react, electrons are exchanged, in what is called a redox reaction.  The redox reaction here creates CO2 and H2O, both of which are low-energy molecules.  The energy pulled out is used to make ATP (adenosine triphosphate), which fuels the body's activities.\n\nRespiration is where O2 is taken from the air and CO2 is released back in the air.  The epithelial tissue in the lungs is very, very thin, and there are many small blood vessels there which bring the blood close to the air.  O2 from the air is inhaled into the lungs, where it diffuses through the epithelium and into the bloodtream, and binds rather loosely to a substance called hemoglobin.  Likewise, the CO2 diffuses through the epitheluim and into your lungs, which you exhale. As the heart pumps, it pulls the oxygen-rich blood away from your lungs, toward the heart.  Then it is pumpmed out by the heart, going throughout the body to provide oxygen to the tissues.  As the hemoglobin goes to places deficient in oxygen, the oxygen will be released by the hemoglobin to supply the tissues.  Meanwhile, the CO2 byproduct in the tissues will bind to the hemoglobin (rather loosely) and be carried away.  After going past the tissues of the body, the blood, now oxygen poor, is returned to the heart, with a lot of CO2.  That blood is again pumped by the heart towards the lungs, and the exchange repeats all over again.
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oxygen is removed and replaced by co2
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thermocouple \nIn electronics, thermocouples are a widely used type of temperature sensor. They are cheap, interchangeable, have standard connectors and can measure a wide range of temperatures. The main limitation is accuracy; system errors of less than 1 °C can be difficult to achieve.\n\nA thermopile is a group of thermocouples connected in series.
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1-thermostat: It senses water temperature and deflects if the water is hot enough, causing a way open for water to circulate around engine cool the engine down.\n\n2- A sensor for battery resource which say to generator when to charge the battery.\n\n3- A sensor for oil level, you should get out of car \nand bring it out from oil tank and watch it, (oil gauge)\n\n4- Oil pressure sensor: alarms if oil pressure is dropped.\n\n5- Back gear light: turns the back gear lamp on if sense the gear is for back.\n\n6- Door opening: alarms if a door is open.\n\n7- Air bag: a mechanical sensor for impact.\n\n8- Gas tank: senses the amount of gas in the tank and say\n it.\n\n9- speed: a digital or mechanical sensor which can say the\n Amount of speed.\n\n10- Rpm: a digital or mechanical sensor which can say how fast is engine turning.
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Here's the o2 web site.\n\nhttp://www.o2.co.uk/\n\nLook around for what you need or Contact them if you need further help
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O2, N2 and CO2.\n\nDon't understand the last part
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C6H12O6 is the chemical formula for Glucose (I think, I can't totally remember), and O2 is oxygen. It works as enzymes in our digestive systems breaks down the glucose and it reacts with the oxygen to create C02, H2O and Energy, which is used in respiration
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In general, the basis of a sensor is to measure some physical property (sound intensity, temperature, light intensity, position, velocity, acceleration, to name a few) and produce an electrical output that represents the amplitude of the property. There are sensors that don't output an electrical signal but indicate amplitude in some other way such as position. An example would be a mechanical speed governor. But the majority of sensors have an electrical output since we are able to do any needed amount of processing of such a signal.\nMicrophones and motion detectors are examples of acoustic sensors. Microphones generate an electric signal that is an analog of the sound it receives; i.e., the signal shows all the vibrations that make up the sound. This can be amplified and used to drive loudspeakers, recording equipment, etc. (If used to detect motion, this would be called "passive" detection.) Acoustic motion sensors use "active" detection. A very high-frequency loudspeaker sends out an ultrasonic sound signal, which results in a particular signal being reflected from nearby surfaces and returned to a microphone. With nothing in the sound field moving, the microphone receives the same sound frequency as is transmitted and a constant amplitude. A moving object reflects some of the sound back to the microphone at a slightly different frequency (due to the Doppler effect) and with slightly different amplitude due to the changing interference pattern created by the motion. Depending on the type of detector, the frequency and/or amplitude change triggers a detection signal, which then can be used to energize an alarm, open a door, turn on a light, etc.
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water food oxygen environment
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There are photoelectric and ionization types. See the ref.\nThe photodetector type shines a beam of light down a tube containing the air being sampled. A hole in the side of the tube passes any light that is scattered by smoke to the photodetector, whose amplified signal powers the alarm horn.\nIn the ionization type, a source of ionizing alpha radiation is beamed into an ionization chamber, where the nitrogen and oxygen molecules in the air sample become ionized and allow a small current to flow between the two plates that make up the chamber. When smoke is present, it disrupts the ionization process by attaching to and neutralizing the ions. The resulting reduction of current flow triggers the alarm.
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From 90% to 100% saturated of oxygen (at 2800 meters over sea level)\n\nMeaning your saturation is fine.\n\nWhy do you need it measured?
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Oxygen? Nothing really. But a high concentration of oxygen would mean a low concentration of carbon dioxide, meaning the oxygen would be blocking the stomata, allowing less CO2 to get in. Meaning in high O2 environmant, C4 plants would hve advantage in that they can still compete for CO2.
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O2 is always more stable
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oxygen is made by distilling liquid air. liquid air is regular air cooled to about -200 degrees.  it becomes a liquid.\n\nthe oxygen doesnt need cleaning,  the distillation process removes any impurities.\n\noxygen is put into the cylinders by a machine similar to a super heavyduty air compressor.  the oxygen in a full cylinder is at about 2000 psi.
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It is the sponsor, O2, they are a mobile phone company (part of British Telecom), so yes, I guess it does stand for Oxygen, but not necessarily in this particular case.
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The "oxygen saturation" is measured with a pulse oximeter that is non-invasive and just attaches to your finger.  It tells us the percentage of your hemoglobin that is completely bound with oxygen.  The device is actually a type of "sphectophotometer" if you ever studied chemistry.  A previous writer is correct in saying that it basically ensures that your body is well oxygenated.  It is obviously a very important monitor that is required in all anesthetics given.  Before the days of measuring oxygen saturation, anesthetists had to go by such signs as the color of your lips, etc.  which is not nearly as accurate.  In addition, the appearance of blue lips (or cyanosis) is a very late finding and means that the oxygen levels are dangerously low.  Pulse oximetry, together with other monitors has made anesthesia safer than it ever had been before.