The words contained in this file might help you see if this file matches what you are looking for:
...Linear measuring devices unit and comparators structure introduction objectives non precision instruments electrical summary key words answers to saqs measurement includes the of lengths diameters heights thickness basic principle mechanical type is that comparison with standard dimensions on a suitably engraved instrument or device are categorized depending upon their accuracy two categories include steel rule caliper divider telescopic gauge used measure line graduations micrometers vernier calipers height gauges slip wide variety also available electric mainly transducers i e they transform displacement into suitable measurable parameter like voltage current some strain variable differential transformers lvdt potentiometers this will discuss different after studying you should be able familiarise yourself various choose according required limited parts visible graduation there several where high not section describes it simplest most common in inspection behind comparing an unknown ...