subject: The Application and Maintenance of theDigital Calipers [print this page] Digital Caliper is a measure of length, inner diameter, and depth gauge.With intuitive readings, easy to use, versatile features, Digital Calipers are more common then the vernier ones.
Digital Calipers mainly includes foot, sensors, control algorithms and digital display some parts.
According to the sensor different forms, there are two kinds of digital calipers including magnetic grid Digital Caliper and capacitive-type digital calipers two categories
Why Digital calipers readings chaos easily?
Many users response: Caliper is not durable. It will "not work" any more only take a few days, and here that " not work " because the operator hands sweat, oil and cutting fluid and other liquid stains caliper surface, which impact sensor signal transmission normally.
In fact, it does not "not work", but lost their effectiveness temporarily!
Why Digital calipers readings chaos easily?
It had to explain from the work theory of the digital calipers. Current ly, the calipers are using capacitive sensors, which use the capacitive coupling mode. That is, it changes the mechanical displacement into electrical signals, and then the electrical signal into the electronic circuit. After a series of transformations, the operation shows the size of mechanical displacement.
If there is water on surface, cutting fluid and other liquid spilled the caliper, and even the user hands sweat stains caliper foot surface, will be the main obstacle of the caliper signal transfer, so that capacitive sensors can not work properly, resulting in show confusion.
How to solve this problem?
If there is confusion in the disply, we can do as follows.
To prepare a bottle of anhydrous alcohol and 2-3 small groups of cotton.
Wet a small group of cotton by anhydrous alcohol, gently wring, and then wipe caliper scale back and forth.
Take another small group of cotton wet ethanol and then twist a small drop gently (to be careful not to drop too much, otherwise the liquid will enter the electronic components to cause other problems!)
To pull caliper back and forth to remove the shielding objects which stick on circuit board
Wip the caliper scale repeatedly by the twisted cotton
In general, these digital calipe problems can be solved by this method.
The Application and Maintenance of theDigital Calipers
