VERNIER CALIPER



Vernier Caliper # SHCM, retail 2.50 ($3.06)**
Manufactured by TopTools (www.top-tools.com.tw
Last updated 06-17-10

*IMPORTANT:
Pricing is accurate as of 06-15-10. Please visit the Currency Calculator for the latest currency conversion rates from Euros to US dollars.


This product does not emit light of its own (much like this spectrometer and this meter), so the standard review format will not be used and the product will be assigned a rating at once.

This is a low-priced vernier (pronounced "") caliper; it measures in mm (millimeters), and supposedly has a measurement resolution of just 100 (=microns) -- or 0.10mm if you prefer.

It has a thumbscrew to lock in the current measurement, regardless of how roughly you handle the instrument after the measurement is taken; it also has a small wheel to slide the jaws open or closed.

It can be used to measure the physical size of an object up to 150mm in size; it also comes equipped with a set of "backward-looking" jaws that allow you to measure the inside diameter of a pipe or other hollow object with a minimum ID (inside diameter) of 3mm to perhaps 4mm.

* This price (in {Euros} is listed as a promotional price on the packaging material itself.




From Wikipedia, comes this:

The vernier scale is constructed so that it is spaced at a constant fraction of the fixed main scale. So for a decimal measuring device each mark on the vernier would be spaced nine tenths of those on the main scale. If you put the two scales together with zero points aligned then the first mark on the vernier scale will be one tenth short of the first main scale mark, the second two tenths short and so on up to the ninth mark which would be misaligned by nine tenths. Only when a full ten marks have been counted would there be an alignment because the tenth mark would be ten tenths, that is a whole main scale unit, short and will therefore align with the ninth mark on the main scale.

Now if you move the vernier by a small amount, say, one tenth of its fixed main scale, the only pair of marks which come into alignment will be the first pair since these were the only ones originally misaligned by one tenth. If we had moved it 2 tenths then the second pair and only the second would be in alignment since these are the only ones which were originally misaligned by that amount. If we had moved it 5 tenths then the fifth pair and only the fifth would be in alignment. And so on for any movement, only one pair of marks will be in alignment and that pair will show what is the value of the small displacement.



Photograph of the measurement area of the caliper, which includes the fixed and vernier scales.
I know it's a bit furry; please don't get on my toliet muscle about the image quality.








TEST NOTES:
Unit was sent by a fan of this website from Brussels Belgium on 06-04-10 (or "04 Jun 2010" if you prefer) and was received on 06-14-10 (or "14 Jun 2010").


UPDATE: 00-00-00



    MANUFACTURER: TopTools
    PRODUCT TYPE: Vernier caliper
    LAMP TYPE: N/A
    No. OF LAMPS: N/A
    BEAM TYPE: N/A
    SWITCH TYPE: N/A
    CASE MATERIAL: Metal
    BEZEL: N/A
    BATTERY: N/A
    CURRENT CONSUMPTION: N/A
    WATER- AND PEE-RESISTANT: Yes
    SUBMERSIBLE: NO WAY HOZAY!!!
    ACCESSORIES: None
    WARRANTY: Taiwan

    PRODUCT RATING:

    Star Rating





Vernier Caliper *







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