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Carbon dioxide sensor

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have the principal advantage of very low energy consumption, and that they can be reduced in size to fit into microelectronic-based systems. On the downside, short and long term drift effects, as well as a rather low overall lifetime, are major obstacles when compared with the NDIR measurement
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tube, an interference (wavelength) filter, and an infrared detector. The gas is pumped or diffuses into the light tube, and the electronics measure the absorption of the characteristic
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sensors are fully calibrated prior to shipping from the factory. Over time, the zero point of the sensor needs to be calibrated to maintain the long term stability of the sensor.
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Proceedings of the 4th International Symposium on Building and Ductwork Air Tightness and 30th AIVC Conference on Trends in High Performance Buildings and the Role of Ventilation
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concentration for ventilation and occupancy purposes. Furthermore, inasmuch as ventilation is a factor in the spread of respiratory
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Arief-Ang, I.B.; Salim, F.D.; Hamilton, M. (2018-04-14). "SD-HOC: Seasonal Decomposition Algorithm for Mining Lagged Time Series".
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Arief-Ang, I.B.; Hamilton, M.; Salim, F. (2018-06-01). "RUP: Large Room Utilisation Prediction with carbon dioxide sensor".
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of light. NDIR sensors are most often used for measuring carbon dioxide. The best of these have sensitivities of 20–50
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eq). Although the readings tend to be good enough in the long run, introducing non-respiration sources of VOC or CO
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sensors can be used to monitor the quality of air and the tailored need for fresh air, respectively. Measuring CO
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levels indirectly determines how many people are in a room, and ventilation can be adjusted accordingly. See
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applications. In this case they are mated to an ATR (attenuated total reflection) optic and measure the gas
2405: 2367: 2247: 1958: 1389: 28: 590:"A low cost MEMS based NDIR system for the monitoring of carbon dioxide in breath analysis at ppm levels" 2425: 2103: 1778: 1449: 1269: 1000:]. Communications in Computer and Information Science. Vol. 845. Springer. pp. 125–143. 2446: 2227: 2217: 2161: 2098: 1993: 1573: 1522: 1088: 878: 810: 503:"Real-time occupancy detection with physics-informed pattern-recognition machines based on limited CO 467: 331: 207: 2093: 2083: 2057: 1843: 1505: 1414: 1384: 1284: 1254: 1148: 1108: 346: 853: 799:"Exhaled CO 2 as a COVID-19 Infection Risk Proxy for Different Indoor Environments and Activities" 2356: 2300: 2237: 2014: 1893: 1888: 1678: 1489: 1474: 1056: 974: 779: 536: 351: 59: 210:. These pressure waves are then detected with an acoustic detector and converted to a usable CO 78: 1928: 1883: 1638: 1633: 1563: 1459: 1295: 1098: 1009: 966: 906: 836: 771: 654: 528: 129: 1041: 2395: 2150: 2145: 1728: 1434: 1332: 1327: 1322: 1239: 1001: 958: 896: 886: 826: 818: 761: 695: 635: 601: 570: 518: 501:
Kampezidou, S. I.; Tikayat Ray, A.; Duncan, S.; Balchanos, M.G.; Mavris, D.N. (2021-01-07).
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can be measured by subjecting a sample to pulses of electromagnetic energy (such as from a
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in a gaseous environment by its characteristic absorption. The key components are an
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For indoor environments such as offices or gyms where the principal source of CO
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for applications such as beverage carbonation, pharmaceutical fermentation and
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Moriyama, Miyu; Hugentobler, Walter J.; Iwasaki, Akiko (29 September 2020).
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molecules within the sample will absorb and generate pressure waves via the
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sensors with silicon-based polymers on quartz microbalance transducers".
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Zhou, R.; Vaihinger, S.; Geckeler, K.E.; Göpel, W. (1994). "Reliable CO
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SD-HOC: Seasonal Decomposition Algorithm for Mining Lagged Time Series
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Lang, T.; Wiemhöfer, H.D.; Göpel, W. (1996). "Carbonate based CO
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https://www.sciencedaily.com/releases/2021/04/210407143809.html
294:. Sensors for these substances can be made using cheap (~$ 20) 198:) that is tuned specifically to the absorption wavelength of CO 132:. Typical NDIR sensors cost in the (US) $ 100 to $ 1000 range. 174:
in a liquid, if the amount of foreign gases is insignificant.
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gas sensors with sensitive layers based on polymer- or hetero
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risk; the worse the ventilation, the better for viruses and
170:) also can be used to measure the amount of dissolved CO 1030:"Demand Control Ventilation Benefits for Your Building" 259:, rescaling some easier-to-measure quantities such as 2383: 2349: 2276: 2180: 2028: 1531: 1217: 1079: 865:Rüffer, D; Hoehne, F; Bühler, J (31 March 2018). 867:"New Digital Metal-Oxide (MOx) Sensor Platform" 803:Environmental Science & Technology Letters 588:Vincent, T.A.; Gardner, J.W. (November 2016). 214:reading through a computer or microprocessor. 1057: 750:"Seasonality of Respiratory Viral Infections" 634:(PhD). Cranfield University. pp. 35–36. 62:, the function of the lungs in the form of a 8: 797:Peng, Zhe; Jimenez, Jose L. (11 May 2021). 334:is set to diagnose will also disrupt them. 1824:High efficiency glandless circulating pump 1073:Heating, ventilation, and air conditioning 1064: 1050: 1042: 900: 890: 830: 765: 522: 2258:Mold growth, assessment, and remediation 270: 46:is an instrument for the measurement of 927:Herberger S, Herold M, Ulmer H (2009). 493: 66:device, and many industrial processes. 922: 920: 767:10.1146/annurev-virology-012420-022445 621:"3.5 Photoacoustic Spectroscopy (PAS)" 552: 550: 139:sensors are also used for dissolved CO 50:gas. The most common principles for CO 2131:Programmable communicating thermostat 326:, will undermine their reliability. H 7: 2253:Mechanical, electrical, and plumbing 455:demand controlled ventilation (DCV) 202:. With each pulse of energy, the CO 2114:Minimum efficiency reporting value 628:NDIR Instrumentation Design for CO 322:, such as peeling fruits or using 54:sensors are infrared gas sensors ( 25: 2156:Standard temperature and pressure 1869:Packaged terminal air conditioner 1405:Passive daytime radiative cooling 1134:Heat pump and refrigeration cycle 688:Sensors and Actuators B: Chemical 594:Sensors and Actuators B: Chemical 563:Sensors and Actuators B: Chemical 155:. New developments include using 1225:Absorption-compression heat pump 659:Sensors - Infineon Technologies" 561:sensors with high performance". 70:Nondispersive infrared (NDIR) CO 2120:Normal temperature and pressure 1500:Vapor-compression refrigeration 951:Pervasive and Mobile Computing 296:Microelectromechanical systems 286:levels are a rough metric for 157:microelectromechanical systems 1: 2268:Testing, adjusting, balancing 2212:Building information modeling 2207:Building services engineering 1784:Ground-coupled heat exchanger 1312:Demand controlled ventilation 1260:Building insulation materials 619:Zakaria, Ryadh (March 2010). 575:10.1016/S0925-4005(96)01846-1 524:10.1016/j.enbuild.2021.110863 95:Nondispersive infrared sensor 88:nondispersive infrared sensor 1829:High-pressure cut-off switch 1380:Ice storage air conditioning 1301:Dedicated outdoor air system 871:Sensors (Basel, Switzerland) 700:10.1016/0925-4005(93)01018-Y 86:concentration meter using a 2172:Thermostatic radiator valve 1974:Thermostatic radiator valve 1485:Underfloor air distribution 1420:Radiant heating and cooling 1338:Energy recovery ventilation 1250:Automobile air conditioning 1114:Domestic energy consumption 1006:10.1007/978-981-13-0292-3_8 823:10.1021/acs.estlett.1c00183 653:AG, Infineon Technologies. 2473: 2321:Institute of Refrigeration 2202:Architectural technologist 1674:Electrostatic precipitator 963:10.1016/j.pmcj.2018.03.001 196:distributed feedback laser 188:photoacoustic spectroscopy 98: 92: 26: 2374:Volatile organic compound 2233:Environmental engineering 2197:Architectural engineering 1999:Ultra-low particulate air 1584:Automatic balancing valve 1512:Variable refrigerant flow 1364:Heat recovery ventilation 1307:Deep water source cooling 754:Annual Review of Virology 606:10.1016/j.snb.2016.04.016 300:metal oxide semiconductor 261:volatile organic compound 2421:Template:Home automation 2243:Kitchen exhaust cleaning 1939:Solar-assisted heat pump 1539:Air conditioner inverter 1318:Displacement ventilation 1209:Vapour pressure of water 1194:Thermal destratification 507:and temperature sensors" 483:Colorimetric capnography 27:Not to be confused with 2416:World Refrigeration Day 2263:Refrigerant reclamation 2192:Architectural acoustics 2136:Programmable thermostat 2068:Clean air delivery rate 1964:Thermal expansion valve 1879:Pressurisation ductwork 1789:Ground source heat pump 1230:Absorption refrigerator 718:Auto-Calibration Guide" 2406:Glossary of HVAC terms 2368:Sick building syndrome 2248:Mechanical engineering 1959:Smoke exhaust ductwork 1390:Mixed-mode ventilation 186:can be measured using 90: 29:Carbon monoxide sensor 2426:Template:Solar energy 2104:Intelligent buildings 2063:Carbon dioxide sensor 1450:Room air distribution 1270:Central solar heating 1035:. KMC Controls. 2013. 362:Cellar and gas stores 190:. Concentration of CO 178:Photoacoustic sensors 81: 36:carbon dioxide sensor 2457:Indoor air pollution 2228:Duct leakage testing 2218:Deep energy retrofit 2162:Thermographic camera 2099:Infrared thermometer 1574:Air source heat pump 1523:Water heat recycling 1089:Air changes per hour 511:Energy and Buildings 468:Exhaust gas analyzer 347:Modified atmospheres 332:hydrogen breath test 208:photoacoustic effect 112:sensors to detect CO 2094:HVAC control system 2084:Home energy monitor 2058:Building automation 1844:Inverter compressor 1506:Variable air volume 1415:Passive ventilation 1385:Kitchen ventilation 1285:Constant air volume 1255:Autonomous building 883:2018Senso..18.1052. 815:2021EnSTL...8..392P 2357:Indoor air quality 2301:ASTM International 2238:Hydronic balancing 2015:Wood-burning stove 1894:Radiator reflector 1679:Evaporative cooler 1490:Underfloor heating 1475:Thermal insulation 437:occupancy counting 352:Indoor air quality 235:principle. Most CO 91: 60:indoor air quality 2434: 2433: 2350:Health and safety 1929:Scroll compressor 1884:Process duct work 1639:Convection heater 1634:Condensing boiler 1564:Air-mixing plenum 1460:Solar combisystem 1296:Cross ventilation 1099:Building envelope 1015:978-981-13-0291-6 892:10.3390/s18041052 435:For indoor human 16:(Redirected from 2464: 2396:Building science 2151:Smart thermostat 2146:Room temperature 1729:Fireplace insert 1435:Radon mitigation 1333:Electric heating 1328:District heating 1323:District cooling 1240:Air conditioning 1066: 1059: 1052: 1043: 1037: 1036: 1034: 1026: 1020: 1019: 989: 983: 982: 946: 940: 939: 933: 924: 915: 914: 904: 894: 862: 856: 851: 845: 844: 834: 794: 788: 787: 769: 745: 739: 738: 736: 735: 729: 723:. Archived from 722: 710: 704: 703: 694:(1–3): 415–420. 679: 673: 672: 670: 669: 663:www.infineon.com 650: 644: 643: 625: 616: 610: 609: 585: 579: 578: 554: 545: 544: 526: 498: 445:applications, CO 273: 166:Another method ( 161:air conditioning 21: 2472: 2471: 2467: 2466: 2465: 2463: 2462: 2461: 2437: 2436: 2435: 2430: 2391:ASHRAE Handbook 2379: 2363:Passive smoking 2345: 2278: 2272: 2184: 2182: 2176: 2030: 2024: 2005:Whole-house fan 1919:Run-around coil 1914:Reversing valve 1859:Mechanical room 1849:Kerosene heater 1839:Infrared heater 1769:Gasoline heater 1709:Fan filter unit 1624:Condensate pump 1609:Centrifugal fan 1527: 1430:Radiant heating 1425:Radiant cooling 1400:Passive cooling 1395:Microgeneration 1265:Central heating 1213: 1189:Thermal comfort 1081: 1075: 1070: 1040: 1032: 1028: 1027: 1023: 1016: 991: 990: 986: 948: 947: 943: 931: 926: 925: 918: 864: 863: 859: 852: 848: 796: 795: 791: 747: 746: 742: 733: 731: 727: 720: 717: 712: 711: 707: 685: 681: 680: 676: 667: 665: 658: 652: 651: 647: 631: 623: 618: 617: 613: 587: 586: 582: 560: 556: 555: 548: 506: 500: 499: 495: 491: 464: 452: 448: 382:Confined spaces 340: 329: 321: 317: 313: 309: 305: 285: 277: 272: 268: 254: 249: 246: 238: 229: 224: 221: 213: 205: 201: 193: 185: 180: 173: 163:applications). 148: 142: 138: 115: 103: 97: 85: 76: 73: 53: 43: 32: 23: 22: 15: 12: 11: 5: 2470: 2468: 2460: 2459: 2454: 2452:Carbon dioxide 2449: 2439: 2438: 2432: 2431: 2429: 2428: 2423: 2418: 2413: 2408: 2403: 2398: 2393: 2387: 2385: 2381: 2380: 2378: 2377: 2371: 2365: 2360: 2353: 2351: 2347: 2346: 2344: 2343: 2338: 2333: 2328: 2323: 2318: 2313: 2308: 2303: 2298: 2293: 2288: 2282: 2280: 2274: 2273: 2271: 2270: 2265: 2260: 2255: 2250: 2245: 2240: 2235: 2230: 2225: 2220: 2215: 2209: 2204: 2199: 2194: 2188: 2186: 2178: 2177: 2175: 2174: 2169: 2164: 2159: 2153: 2148: 2143: 2141:Psychrometrics 2138: 2133: 2128: 2123: 2117: 2111: 2106: 2101: 2096: 2091: 2086: 2081: 2076: 2071: 2065: 2060: 2055: 2050: 2045: 2040: 2038:Air flow meter 2034: 2032: 2026: 2025: 2023: 2022: 2017: 2012: 2007: 2002: 1996: 1991: 1986: 1981: 1976: 1971: 1966: 1961: 1956: 1951: 1946: 1941: 1936: 1931: 1926: 1921: 1916: 1911: 1906: 1901: 1896: 1891: 1886: 1881: 1876: 1871: 1866: 1861: 1856: 1851: 1846: 1841: 1836: 1831: 1826: 1821: 1816: 1814:Heating system 1811: 1806: 1801: 1796: 1794:Heat exchanger 1791: 1786: 1781: 1776: 1771: 1766: 1761: 1759:Gas compressor 1756: 1751: 1746: 1741: 1736: 1731: 1726: 1721: 1716: 1711: 1706: 1701: 1696: 1694:Expansion tank 1691: 1686: 1681: 1676: 1671: 1666: 1661: 1656: 1651: 1646: 1641: 1636: 1631: 1626: 1621: 1616: 1614:Ceramic heater 1611: 1606: 1601: 1596: 1591: 1586: 1581: 1576: 1571: 1566: 1561: 1556: 1551: 1546: 1541: 1535: 1533: 1529: 1528: 1526: 1525: 1520: 1515: 1509: 1503: 1497: 1492: 1487: 1482: 1477: 1472: 1467: 1462: 1457: 1455:Solar air heat 1452: 1447: 1445:Renewable heat 1442: 1437: 1432: 1427: 1422: 1417: 1412: 1407: 1402: 1397: 1392: 1387: 1382: 1377: 1372: 1367: 1361: 1356: 1354:Forced-air gas 1351: 1346: 1341: 1335: 1330: 1325: 1320: 1315: 1309: 1304: 1298: 1293: 1288: 1282: 1277: 1272: 1267: 1262: 1257: 1252: 1247: 1242: 1237: 1232: 1227: 1221: 1219: 1215: 1214: 1212: 1211: 1206: 1204:Thermodynamics 1201: 1196: 1191: 1186: 1181: 1176: 1174:Psychrometrics 1171: 1166: 1161: 1156: 1151: 1146: 1141: 1136: 1131: 1129:Gas compressor 1126: 1124:Fluid dynamics 1121: 1116: 1111: 1106: 1101: 1096: 1091: 1085: 1083: 1077: 1076: 1071: 1069: 1068: 1061: 1054: 1046: 1039: 1038: 1021: 1014: 984: 941: 916: 857: 846: 809:(5): 392–397. 789: 740: 715: 705: 683: 674: 656: 645: 629: 611: 580: 569:(1–3): 383–7. 558: 546: 504: 492: 490: 487: 486: 485: 480: 475: 470: 463: 460: 459: 458: 450: 446: 439: 433: 432: 431: 429:Decaffeination 426: 420: 415: 409: 404: 402:Transportation 399: 394: 389: 384: 379: 373: 368: 366:Marine vessels 363: 360: 354: 349: 339: 336: 327: 319: 315: 314:equivalent (CO 311: 307: 303: 283: 275: 252: 248: 244: 241: 236: 227: 223: 219: 216: 211: 203: 199: 191: 183: 179: 176: 171: 146: 140: 136: 113: 93:Main article: 83: 75: 71: 68: 51: 48:carbon dioxide 41: 24: 14: 13: 10: 9: 6: 4: 3: 2: 2469: 2458: 2455: 2453: 2450: 2448: 2445: 2444: 2442: 2427: 2424: 2422: 2419: 2417: 2414: 2412: 2409: 2407: 2404: 2402: 2399: 2397: 2394: 2392: 2389: 2388: 2386: 2382: 2375: 2372: 2369: 2366: 2364: 2361: 2358: 2355: 2354: 2352: 2348: 2342: 2339: 2337: 2334: 2332: 2329: 2327: 2324: 2322: 2319: 2317: 2314: 2312: 2309: 2307: 2304: 2302: 2299: 2297: 2294: 2292: 2289: 2287: 2284: 2283: 2281: 2279:organizations 2275: 2269: 2266: 2264: 2261: 2259: 2256: 2254: 2251: 2249: 2246: 2244: 2241: 2239: 2236: 2234: 2231: 2229: 2226: 2224: 2223:Duct cleaning 2221: 2219: 2216: 2213: 2210: 2208: 2205: 2203: 2200: 2198: 2195: 2193: 2190: 2189: 2187: 2179: 2173: 2170: 2168: 2165: 2163: 2160: 2157: 2154: 2152: 2149: 2147: 2144: 2142: 2139: 2137: 2134: 2132: 2129: 2127: 2124: 2121: 2118: 2115: 2112: 2110: 2107: 2105: 2102: 2100: 2097: 2095: 2092: 2090: 2087: 2085: 2082: 2080: 2077: 2075: 2074:Control valve 2072: 2069: 2066: 2064: 2061: 2059: 2056: 2054: 2051: 2049: 2046: 2044: 2041: 2039: 2036: 2035: 2033: 2027: 2021: 2018: 2016: 2013: 2011: 2008: 2006: 2003: 2000: 1997: 1995: 1994:Turning vanes 1992: 1990: 1987: 1985: 1982: 1980: 1977: 1975: 1972: 1970: 1969:Thermal wheel 1967: 1965: 1962: 1960: 1957: 1955: 1952: 1950: 1947: 1945: 1942: 1940: 1937: 1935: 1934:Solar chimney 1932: 1930: 1927: 1925: 1922: 1920: 1917: 1915: 1912: 1910: 1907: 1905: 1902: 1900: 1897: 1895: 1892: 1890: 1887: 1885: 1882: 1880: 1877: 1875: 1872: 1870: 1867: 1865: 1862: 1860: 1857: 1855: 1852: 1850: 1847: 1845: 1842: 1840: 1837: 1835: 1832: 1830: 1827: 1825: 1822: 1820: 1817: 1815: 1812: 1810: 1807: 1805: 1802: 1800: 1797: 1795: 1792: 1790: 1787: 1785: 1782: 1780: 1777: 1775: 1772: 1770: 1767: 1765: 1762: 1760: 1757: 1755: 1752: 1750: 1747: 1745: 1742: 1740: 1737: 1735: 1732: 1730: 1727: 1725: 1722: 1720: 1717: 1715: 1712: 1710: 1707: 1705: 1704:Fan coil unit 1702: 1700: 1697: 1695: 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1316: 1313: 1310: 1308: 1305: 1302: 1299: 1297: 1294: 1292: 1289: 1286: 1283: 1281: 1280:Chilled water 1278: 1276: 1273: 1271: 1268: 1266: 1263: 1261: 1258: 1256: 1253: 1251: 1248: 1246: 1243: 1241: 1238: 1236: 1233: 1231: 1228: 1226: 1223: 1222: 1220: 1216: 1210: 1207: 1205: 1202: 1200: 1197: 1195: 1192: 1190: 1187: 1185: 1182: 1180: 1179:Sensible heat 1177: 1175: 1172: 1170: 1167: 1165: 1162: 1160: 1159:Noise control 1157: 1155: 1152: 1150: 1147: 1145: 1142: 1140: 1139:Heat transfer 1137: 1135: 1132: 1130: 1127: 1125: 1122: 1120: 1117: 1115: 1112: 1110: 1107: 1105: 1102: 1100: 1097: 1095: 1092: 1090: 1087: 1086: 1084: 1078: 1074: 1067: 1062: 1060: 1055: 1053: 1048: 1047: 1044: 1031: 1025: 1022: 1017: 1011: 1007: 1003: 999: 995: 988: 985: 980: 976: 972: 968: 964: 960: 956: 952: 945: 942: 937: 930: 923: 921: 917: 912: 908: 903: 898: 893: 888: 884: 880: 876: 872: 868: 861: 858: 855: 850: 847: 842: 838: 833: 828: 824: 820: 816: 812: 808: 804: 800: 793: 790: 785: 781: 777: 773: 768: 763: 760:(1): 83–101. 759: 755: 751: 744: 741: 730:on 2014-08-19 726: 719: 709: 706: 701: 697: 693: 689: 678: 675: 664: 660: 649: 646: 641: 637: 633: 622: 615: 612: 607: 603: 599: 595: 591: 584: 581: 576: 572: 568: 564: 553: 551: 547: 542: 538: 534: 530: 525: 520: 516: 512: 508: 497: 494: 488: 484: 481: 479: 476: 474: 473:Oxygen sensor 471: 469: 466: 465: 461: 456: 444: 440: 438: 434: 430: 427: 424: 421: 419: 416: 413: 410: 408: 405: 403: 400: 398: 395: 393: 390: 388: 385: 383: 380: 377: 374: 372: 369: 367: 364: 361: 358: 355: 353: 350: 348: 345: 344: 342: 341: 337: 335: 333: 325: 301: 297: 293: 289: 281: 266: 262: 258: 242: 240: 233: 217: 215: 209: 197: 189: 177: 175: 169: 164: 162: 158: 154: 150: 149:sequestration 133: 131: 127: 123: 119: 111: 110:spectroscopic 107: 102: 96: 89: 80: 69: 67: 65: 61: 57: 49: 45: 37: 30: 19: 2401:Fireproofing 2185:and services 2181:Professions, 2079:Gas detector 2062: 1979:Trickle vent 1954:Smoke damper 1949:Smoke canopy 1944:Space heater 1874:Plenum space 1809:Heating film 1689:Exhaust hood 1659:Dehumidifier 1599:Blast damper 1594:Barrier pipe 1569:Air purifier 1480:Thermosiphon 1359:Free cooling 1275:Chilled beam 1199:Thermal mass 1184:Stack effect 1169:Particulates 1149:Infiltration 1080:Fundamental 1024: 997: 993: 987: 954: 950: 944: 935: 874: 870: 860: 849: 806: 802: 792: 757: 753: 743: 732:. Retrieved 725:the original 708: 691: 687: 677: 666:. Retrieved 662: 648: 627: 614: 597: 593: 583: 566: 562: 514: 510: 496: 478:Gas detector 397:Horticulture 338:Applications 291: 265:hydrogen gas 250: 243:Estimated CO 232:polysiloxane 225: 181: 165: 152: 134: 108:sensors are 104: 39: 35: 33: 2447:Gas sensors 2411:Warm Spaces 2053:Blower door 2031:and control 2029:Measurement 2010:Windcatcher 1984:Trombe wall 1924:Sail switch 1904:Refrigerant 1899:Recuperator 1774:Grease duct 1734:Freeze stat 1719:Fire damper 1589:Back boiler 1559:Air ionizer 1554:Air handler 1518:Ventilation 1370:Hybrid heat 1235:Air barrier 1154:Latent heat 994:Data Mining 877:(4): 1052. 632:Gas Sensing 600:: 954–964. 423:Rebreathers 412:Ventilation 371:Greenhouses 257:respiration 226:Chemical CO 218:Chemical CO 168:Henry's Law 101:Capnography 2441:Categories 2167:Thermostat 2089:Humidistat 2020:Zone valve 1989:TurboSwing 1864:Oil heater 1834:Humidifier 1764:Gas heater 1714:Fan heater 1684:Evaporator 1669:Economizer 1644:Compressor 1549:Air filter 1532:Components 1349:Forced-air 1245:Antifreeze 1218:Technology 1164:Outgassing 1104:Convection 734:2014-08-19 668:2020-11-10 517:: 110863. 489:References 414:management 407:Cryogenics 392:Healthcare 343:Examples: 292:vice versa 263:(VOC) and 126:wavelength 120:source, a 99:See also: 64:capnograph 18:CO2 sensor 2277:Industry 2126:OpenTherm 1804:Heat pump 1799:Heat pipe 1749:Fume hood 1724:Fireplace 1629:Condenser 1579:Attic fan 1375:Hydronics 971:1873-1589 957:: 49–72. 938:. Berlin. 784:214601321 640:1826/6784 541:233831299 533:0378-7788 387:Aerospace 359:detection 255:is human 2384:See also 2109:LonWorks 2043:Aquastat 1909:Register 1889:Radiator 1544:Air door 1344:Firestop 1144:Humidity 1119:Enthalpy 1109:Dilution 1094:Bake-out 1082:concepts 979:13670861 911:29614746 841:37566374 776:32196426 462:See also 376:Landfill 357:Stowaway 288:COVID-19 118:infrared 2183:trades, 1754:Furnace 1619:Chiller 1291:Coolant 902:5948493 879:Bibcode 832:8043197 811:Bibcode 425:(SCUBA) 324:perfume 310:) or CO 298:(MEMS) 280:viruses 222:sensors 153:in situ 135:NDIR CO 74:sensors 2336:SMACNA 2296:ASHRAE 2116:(MERV) 2070:(CADR) 2048:BACnet 2001:(ULPA) 1854:Louver 1779:Grille 1654:Damper 1604:Boiler 1502:(VCRS) 1303:(DOAS) 1012:  977:  969:  909:  899:  839:  829:  782:  774:  539:  531:  418:Mining 247:sensor 44:sensor 2376:(VOC) 2370:(SBS) 2359:(IAQ) 2316:CIBSE 2311:BSRIA 2214:(BIM) 2158:(STP) 2122:(NTP) 1744:Freon 1514:(VRF) 1508:(VAV) 1366:(HRV) 1340:(ERV) 1314:(DCV) 1287:(CAV) 1033:(PDF) 996:[ 975:S2CID 932:(PDF) 780:S2CID 728:(PDF) 721:(PDF) 624:(PDF) 537:S2CID 122:light 2331:LEED 2291:AMCA 2286:AHRI 1819:HEPA 1739:Flue 1664:Duct 1010:ISBN 967:ISSN 907:PMID 837:PMID 772:PMID 529:ISSN 443:HVAC 441:For 306:(eCO 282:, CO 106:NDIR 56:NDIR 2341:UMC 2326:IIR 2306:BRE 1699:Fan 1002:doi 959:doi 897:PMC 887:doi 827:PMC 819:doi 762:doi 714:"CO 696:doi 655:"CO 636:hdl 602:doi 598:236 571:doi 519:doi 515:242 378:gas 130:PPM 38:or 2443:: 1008:. 973:. 965:. 955:46 953:. 934:. 919:^ 905:. 895:. 885:. 875:18 873:. 869:. 835:. 825:. 817:. 805:. 801:. 778:. 770:. 756:. 752:. 692:19 690:. 661:. 626:. 596:. 592:. 567:34 565:. 549:^ 535:. 527:. 513:. 509:. 182:CO 145:CO 82:CO 40:CO 34:A 1065:e 1058:t 1051:v 1018:. 1004:: 981:. 961:: 913:. 889:: 881:: 843:. 821:: 813:: 807:8 786:. 764:: 758:7 737:. 716:2 702:. 698:: 684:2 671:. 657:2 642:. 638:: 630:2 608:. 604:: 577:. 573:: 559:2 543:. 521:: 505:2 457:. 451:2 447:2 328:2 320:2 316:2 312:2 308:2 304:2 284:2 276:2 271:2 269:H 267:( 253:2 245:2 237:2 228:2 220:2 212:2 204:2 200:2 192:2 184:2 172:2 147:2 141:2 137:2 114:2 84:2 72:2 52:2 42:2 31:. 20:)

Index

CO2 sensor
Carbon monoxide sensor
carbon dioxide
NDIR
indoor air quality
capnograph

nondispersive infrared sensor
Nondispersive infrared sensor
Capnography
NDIR
spectroscopic
infrared
light
wavelength
PPM
CO2 sequestration
microelectromechanical systems
air conditioning
Henry's Law
photoacoustic spectroscopy
distributed feedback laser
photoacoustic effect
polysiloxane
respiration
volatile organic compound
hydrogen gas
viruses
COVID-19
Microelectromechanical systems

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