{"id":3606,"date":"2025-04-21T04:59:34","date_gmt":"2025-04-21T04:59:34","guid":{"rendered":"https:\/\/webprojects.cloud\/wordpress\/splatco\/?post_type=spl_knowledgebase&p=3606"},"modified":"2025-06-10T12:01:45","modified_gmt":"2025-06-10T12:01:45","slug":"thermistors-extracting-polynomial-coefficients","status":"publish","type":"spl_knowledgebase","link":"https:\/\/webprojects.cloud\/wordpress\/splatco\/knowledgebase\/tutorials-application-notes-and-white-papers\/tutorial-thermistor-temperature-measurement\/thermistors-using-the-supplied-spreadsheets\/thermistors-extracting-polynomial-coefficients\/","title":{"rendered":"Thermistors: Extracting polynomial coefficients"},"content":{"rendered":"\n

In January 2012 we introduced the\u00a0Thermistor hash command<\/a>, which makes the use of spreadsheets largely unnecessary. SPLat\/PC can now do all the hard work for you.<\/p>\n\n\n\n

Once you have established the optimum operating parameters, it is time to extract the polynomial coefficients and generate the SPLat code.<\/p>\n\n\n\n

The equation at the top of the Temperature versus Count graph contains the polynomial coefficients. If you click on the equation it will be revealed to be a text box. You can use your mouse to highlight any part of the box and copy it (CTRL+C). (If you accidentally change the equation, use CTRL+Z to undo the change).<\/p>\n\n\n\n

If you very carefully copy the coefficients from the equation into the Polynomial Coefficients box (yellow cells), you will be able to get a table of polynomial errors versus temperature. The comments in the spreadsheet detail this.<\/p>\n\n\n\n

Caution: It is very easy to miss a minus sign in the equation where it linewraps. If you get huge errors after you have copied the coefficients, double check the copied values.<\/p>\n","protected":false},"excerpt":{"rendered":"

In January 2012 we introduced the\u00a0Thermistor hash command, which makes the use of spreadsheets largely unnecessary. SPLat\/PC can now do all the hard work for…<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":3598,"menu_order":7,"template":"","class_list":["post-3606","spl_knowledgebase","type-spl_knowledgebase","status-publish","hentry"],"acf":[],"yoast_head":"\nThermistors: Extracting polynomial coefficients - SPLat Controls<\/title>\n<meta name=\"robots\" content=\"noindex, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Thermistors: Extracting polynomial coefficients - SPLat Controls\" \/>\n<meta property=\"og:description\" content=\"In January 2012 we introduced the\u00a0Thermistor hash command, which makes the use of spreadsheets largely unnecessary. 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