It is always a bit tricky to state an accuracy figure, since it depends on what the sensor is connected to and how it has been calibrated.<\/p>\n
Assuming you are using DVP-BTA connected to a LabPro or LabQuest, the first number to look at is resolution, which is the smallest increment in voltage that can be measured. For DVP-BTA, this is 0.003 volts. The accuracy depends on how the sensor was calibrated and, to some small extent, the LabPro used. <\/p>\n
As part of our manufacturing process, the DVP-BTAs are made with precision resistors and instrumentation amplifiers, so they are quite standardized and checked against a known set of voltages. If the voltage is off by 0.1 volts or more, it is rejected. There is no calibration done because this particular sensor does not have a way to “store” the calibration. (Most of our sensors do have on-sensor storage of calibration).<\/p>\n
You can calibrate the sensor, and save the calibration on your computer or LabQuest to improve the accuracy. Just do a standard calibration two-point calibration using shorted leads as 0 volts and a known voltage (measured with a good voltmeter) as another.<\/p>\n
As shipped, with no local calibration, the accuracy is something like 0.1 volts, but by calibrating, you can make the accuracy very close to 0.01 volts.<\/p>","protected":false},"excerpt":{"rendered":"
It is always a bit tricky to state an accuracy figure, since it depends on what the sensor is connected to and how it has…<\/p>\n","protected":false},"author":31,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[],"tags":[1420,1010,940],"class_list":["post-1230","post","type-post","status-publish","format-standard","hentry","tag-accuracy","tag-dvp-bta","tag-voltage"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.vernier.com\/til\/wp-json\/wp\/v2\/posts\/1230","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.vernier.com\/til\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.vernier.com\/til\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.vernier.com\/til\/wp-json\/wp\/v2\/users\/31"}],"replies":[{"embeddable":true,"href":"https:\/\/www.vernier.com\/til\/wp-json\/wp\/v2\/comments?post=1230"}],"version-history":[{"count":0,"href":"https:\/\/www.vernier.com\/til\/wp-json\/wp\/v2\/posts\/1230\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.vernier.com\/til\/wp-json\/wp\/v2\/media?parent=1230"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.vernier.com\/til\/wp-json\/wp\/v2\/categories?post=1230"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.vernier.com\/til\/wp-json\/wp\/v2\/tags?post=1230"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}