Positive Zero Error
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scale. It is a scale that indicates where the measurement lies in between two of the marks on the main scale. Verniers are common on sextants used in navigation, scientific instruments used to conduct experiments, vernier caliper zero error machinists' measuring tools (all sorts, but especially calipers and micrometers) used to work materials zero reading definition physics to fine tolerances, and on theodolites used in surveying. A close-up of a caliper's measurement scales. Assuming the caliper has no "zero vernier caliper least count error" (that is, it registers 0.00 mm when fully closed) the image shows a reading of 3.58mm ± 0.02mm. This is found by adding 3.00mm (left red mark) read off from the fixed main (upper) scale
Vernier Caliper Reading
to 0.58mm (right red mark) obtained from the sliding vernier (lower) scale. The main scale reading is determined by the rightmost tick on the main scale that is to the left of the zero tick on the vernier scale. The vernier reading is found by locating the closest aligned lines between the two scales. The 0.02mm inscription indicates the caliper's precision and is just the width that corresponds to the smallest interval micrometer caliper on the vernier scale. Contents 1 History 2 Construction 3 Use 4 Least Count of Vernier scale 5 Examples 6 How a vernier scale works 7 Zero error 8 See also 9 References 10 External links History[edit] Mechanical displacement gauges with vernier scales on wall cracks (Moika Palace, Saint Petersburg). Calipers without a vernier scale originated in ancient China as early as the Qin dynasty (9 AD).[1][2] The secondary scale, which contributed extra precision, was invented in 1631 by French mathematician Pierre Vernier (1580–1637). Its use was described in detail in English in Navigatio Britannica (1750) by mathematician and historian John Barrow.[3] While calipers are the most typical use of Vernier scales today, they were originally developed for angle-measuring instruments such as astronomical quadrants. In some languages, the Vernier scale is called a nonius. It was also commonly called a nonius in English until the end of the 18th century.[4] Nonius is the Latin name of the Portuguese as The name "vernier" was popularised by the French astronomer Jérôme Lalande (1732–1807) through his Traité d'astronomie (2 vols) (1764).[5] The name "vernier" was popularised by the French astronomer Jérôme Lalande (1732–1807) through his Traité d'astronomie (2 vols) (1764).[6] The name "vernier" was popularised by the French astronomer Jérôme Lalande (1732–1807) through his Traité d'astronomie (2 vols
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Malaysia Mexico New Zealand Philippines Quebec Singapore Taiwan Hong Kong Spain Thailand UK & Ireland Vietnam Espanol About About Answers Community Guidelines Leaderboard Knowledge Partners Points & Levels Blog Safety Tips https://en.wikipedia.org/wiki/Vernier_scale Science & Mathematics Engineering Next Differentiate negative zero error and positive zero error? Follow 2 answers 2 Report Abuse Are you sure you want to delete this answer? Yes No Sorry, something has gone wrong. Trending Now Hillary Clinton Rae Carruth Bobby Wagner Danika Yarosh Luxury SUV Deals Rheumatoid Arthritis Symptoms Larry Fitzgerald 2016 Cars Shannen Doherty Salma Hayek Answers Best https://answers.yahoo.com/question/index?qid=20110926105802AASLYH6 Answer: Zero error is the error in reading when the instrument is set at zero postion. If there is no error at that position then reading should be zero , If the reading at zero position is more than zero, than this has to be subtracted from the final reading. and this is called +ve zero error. If the reading at zero position is less than zero, than this has to be added to the final reading and this is calld -ve zero error. Addition before completion of last one day Correct Reading = Final Reading -- ( +ve/-ve zero error) Source(s): half1951wit0202 · 5 years ago 0 Thumbs up 1 Thumbs down Comment Add a comment Submit · just now Report Abuse what is zero error Fazal · 2 years ago 0 Thumbs up 0 Thumbs down Comment Add a comment Submit · just now Report Abuse Add your answer Differentiate negative zero error and positive zero error? Add your answer Source Submit Cancel Report Abuse I think this question violates the Community Guidelines Chat or rant, adult content, spam, insulting
PhysicsSubmit A PostReview ContentMini PhysicsAbout Mini PhysicsContact Mini PhysicsAdvertise HereT&CsAcknowledgementDisclaimerPrivacy Policy Close Close MP > O Level > Measurement > How To Read A Vernier CaliperHow To Read A Vernier https://www.miniphysics.com/how-to-read-a-vernier-caliper.html Caliper Show/Hide Sub-topics (O Level)Physical QuantitiesBase QuantityPrefixesScalar and Vector QuantitiesMeasurement of LengthMeasurement of TimeHow To Read A Vernier Caliper (You Are Here!)How To Read A Micrometer http://physics401.one-school.net/2009/01/140-measurements-and-error.html Screw Gaugeshares Facebook Twitter Google+ Email Facebook Twitter Google+ Pinterest LinkedIn Digg Del StumbleUpon Tumblr VKontakte Print Email Flattr Reddit Buffer Love This Weibo Pocket vernier caliper Xing Odnoklassniki ManageWP.org WhatsApp Meneame Blogger Amazon Yahoo Mail Gmail AOL Newsvine HackerNews Evernote MySpace Mail.ru Viadeo Line Flipboard Comments Yummly SMS Viber Telegram Subscribe Skype Facebook Messenger Kakao LiveJournalxA quick guide on how to read a vernier caliper. A vernier caliper outputs measurement readings in centimetres (cm) and it positive zero error is precise up to 2 decimal places (E.g. 1.23 cm).Note: The measurement-reading technique described in this post will be similar for vernier calipers which output measurement readings in inches.Measurement Reading Technique For Vernier CaliperIn order to read the measurement readings from vernier caliper properly, you need to remember two things before we start. For example, if a vernier caliper output a measurement reading of 2.13 cm, this means that:The main scale contributes the main number(s) and one decimal place to the reading (E.g. 2.1 cm, whereby 2 is the main number and 0.1 is the one decimal place number)The vernier scale contributes the second decimal place to the reading (E.g. 0.03 cm)Let's examine the image of the vernier caliper readings above. We will just use a two steps method to get the measurement reading from this:To obtain the main scale reading: Look at the image above, 2.1 cm is
the difference between the actual value of a quantity and the value obtained in measurement.There are 2 main types of errorSystematic ErrorRandom ErrorSystematic ErrorSystematic errors are errors which tend to shift all measurements in a systematic way so their mean value is displaced. Systematic errors can be compensated if the errors are known.Examples of systematic errors arezero error, which cause by an incorrect position of the zero point, an incorrect calibration of the measuring instrument.consistently improper use of equipment.Systematic error can be reduced byConducting the experiment with care.Repeating the experiment by using different instruments.Zero error1. A zero error arises when the measuring instrument does not start from exactly zero.2. Zero errors are consistently present in every reading of a measurement.3. The zero error can be positive or negative.(NO ZERO ERROR: The pointer of the ammeter place on zero when no current flow through it.)(NEGATIVE ZERO ERROR: The pointer of the ammeter does not place on zero but a negative value when no current flow through it.)(POSITIVE ZERO ERROR: The pointer of the ammeter does not place on zero but a negative value when no current flow through it.)Random errors1. Random errors arise from unknown and unpredictable variations in condition.2. It fluctuates from one measurement to the next.3. Random errors are caused by factors that are beyond the control of the observers.4. Random error can cause bypersonal errors such as human limitations of sight and touch.lack of sensitivity of the instrument: the instrument fail to respond to the small change.natural errors such as changes in temperature or wind, while the experiment is in progress.wrong technique of measurement.One example of random error is the parallax error. Random error can be reduced bytaking repeat readingsfind the average value of the reading.Parallax errorA parallax error is an error in reading an instrument due to the eye of the observer and pointer are not i