{"id":1957,"date":"2017-04-11T11:44:26","date_gmt":"2017-04-11T09:44:26","guid":{"rendered":"http:\/\/www.econox.com\/%d0%ba%d0%b8%d1%81%d0%bb%d0%be%d1%80%d0%be%d0%b4%d0%bd%d1%8b%d0%b5-%d0%b7%d0%be%d0%bd%d0%b4%d1%8b\/nernst-equation\/"},"modified":"2022-06-15T10:10:58","modified_gmt":"2022-06-15T08:10:58","slug":"%d1%83%d1%80%d0%b0%d0%b2%d0%bd%d0%b5%d0%bd%d0%b8%d0%b5-%d0%bd%d0%b5%d1%80%d0%bd%d1%81%d1%82%d0%b0","status":"publish","type":"page","link":"https:\/\/www.econox.com\/ru\/%d0%ba%d0%b8%d1%81%d0%bb%d0%be%d1%80%d0%be%d0%b4%d0%bd%d1%8b%d0%b5-%d0%b7%d0%be%d0%bd%d0%b4%d1%8b\/%d1%83%d1%80%d0%b0%d0%b2%d0%bd%d0%b5%d0%bd%d0%b8%d0%b5-%d0%bd%d0%b5%d1%80%d0%bd%d1%81%d1%82%d0%b0","title":{"rendered":"\u0423\u0420\u0410\u0412\u041d\u0415\u041d\u0418\u0415 \u041d\u0415\u0420\u041d\u0421\u0422\u0410"},"content":{"rendered":"

[et_pb_section admin_label=»section» transparent_background=»off» allow_player_pause=»off» inner_shadow=»off» parallax=»off» parallax_method=»off» custom_padding=»40px||40px|» padding_mobile=»off» make_fullwidth=»off» use_custom_width=»off» width_unit=»on» make_equal=»off» use_custom_gutter=»off» background_color=»#f5f5f5″][et_pb_row admin_label=»row» make_fullwidth=»off» use_custom_width=»off» width_unit=»on» use_custom_gutter=»off» padding_mobile=»off» allow_player_pause=»off» parallax=»off» parallax_method=»off» make_equal=»off» parallax_1=»off» parallax_method_1=»off» column_padding_mobile=»on»][et_pb_column type=»4_4″][et_pb_text admin_label=»Texte» background_layout=»light» text_orientation=»left» use_border_color=»off» border_color=»#ffffff» border_style=»solid»]<\/p>\n

$\"\"$ Nernst equation (%O2 calculation)<\/h1>\n
[\/et_pb_text][\/et_pb_column][\/et_pb_row][\/et_pb_section][et_pb_section admin_label=»Section» fullwidth=»off» specialty=»off»][et_pb_row admin_label=»Ligne»][et_pb_column type=»4_4″][et_pb_text admin_label=»Texte» background_layout=»light» text_orientation=»justified» use_border_color=»off» border_color=»#ffffff» border_style=»solid»]<\/p>\n

Calculation of oxygen concentration from CarboProbe\u00a0sensor signal<\/h2>\n
Please enter the operating temperature (500 — 1700 deg C) and the measured mV (0 — 1200 mV) signal. The corresponding oxygen concentration is calculated. If it is very low, it is displayed in scientific notation.<\/p>\n
Click here to download our Excel file for offline calculation<\/strong><\/a><\/p>\n
The Nernst equation is E = (RT\/nF)ln(pO_{2<\/sub>\/pO_{2<\/sub>‘)<\/b><\/p>\n}}
Where:
\nE = sensor electromotive force, (mV)
\nR = gas constant
\nT = temperature, (Kelvin)
\nn = number of charges per reactant species
\nF = Faraday constant
\np = partial pressure (mole fraction)<\/p>\n
This equation describes the electromotive force (emf) developed when there are different concentrations of a reactant on each side of an electrolyte.<\/p>\n
If oxygen is to be measured, using a zirconia ceramic electrolyte <\/a>and atmospheric air, with pO_{2<\/sub> = 0.209, as a reference, this equation simplifies to:<\/p>\n}
pO_{2<\/sub> = 0.209 exp(-46.421 E\/T)<\/b><\/p>\n}
The equation may be re-arranged, to allow calculation of the emf from a known reference concentration and a measured oxygen concentration:<\/p>\n
E = 0.0496 T log(pO_{2<\/sub>\/0.209 )<\/b><\/p>\n}

<\/h2>\n<\/form>\n
ECONOX\u00a0supplies a range of industrial, scientific and pottery probes <\/a>for the measurement of oxygen at high temperature<\/b><\/p>\n
[\/et_pb_text][\/et_pb_column][\/et_pb_row][\/et_pb_section]<\/p>\n","protected":false},"excerpt":{"rendered":"
Nernst equation (%O2 calculation) Calculation of oxygen concentration from CarboProbe\u00a0sensor signal Please enter the operating temperature (500 — 1700 deg C) and the measured mV (0 — 1200 mV) signal. The corresponding oxygen concentration is calculated. If it is very low, it is displayed in scientific notation. Click here to download our Excel file for […]<\/p>\n","protected":false},"author":4,"featured_media":0,"parent":1921,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_et_pb_use_builder":"on","_et_pb_old_content":"","_et_gb_content_width":"","footnotes":""},"yoast_head":"\n\u0423\u0420\u0410\u0412\u041d\u0415\u041d\u0418\u0415 \u041d\u0415\u0420\u041d\u0421\u0422\u0410 - Econox<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.econox.com\/fr\/sondes-a-oxygene\/equation-de-nernst\" \/>\n<meta property=\"og:locale\" content=\"ru_RU\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"\u0423\u0420\u0410\u0412\u041d\u0415\u041d\u0418\u0415 \u041d\u0415\u0420\u041d\u0421\u0422\u0410 - Econox\" \/>\n<meta property=\"og:description\" content=\"Nernst equation (%O2 calculation) Calculation of oxygen concentration from CarboProbe\u00a0sensor signal Please enter the operating temperature (500 - 1700 deg C) and the measured mV (0 - 1200 mV) signal. 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