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Systematic error
Go up to be perfected not quite as a result of instrument structure or the instrument can produce an error without the reason such as very good calibration. For example, the heat of...
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Thickness gauge
Supersonic thickness gauge presses working principle cent: Resonance law, interference law and pulse bounce technique wait. A few kinds, because pulse bounce technique does not inv...
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The principle that sparks in oscillograph is what and action
The purpose that spark is to show every time when begin in undee same position, weaveform can be stabilized show. General imitate oscillograph has edge to spark, video sparks and to...
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The information of thickness gauge of eddy current metal
To the overburden that material surface protection, adornment forms, like layer of coating, film, apply, stick layer, chemistry to generate film to wait, cladding is called in conce...
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The indication principle of oscillograph
Oscillograph of principle of 1 oscillograph job is the character that uses electronic oscilloscope tube, person eye cannot of direct observation hand in become telegraphic date is c...
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How to use avometer
The note of the use of avometer(1) before using avometer, should undertake first " mechanical zero " , was not being measured namely when n, make avometer finger points to in 0 volt...
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Unit conversion always is expressed
Area1 square kilometer (Km2) =100 hectare (Ha) =247.1 acre (Acre) =0.386 square mile (Mile2)1 square metre (M2) =10.764 square foot (Ft2)1 square inch (In2) =6.452 square centimeter...
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How to use digital oscilloscope?
Because digital oscillograph has weaveform to spark, memory, show, measure, the distinct advantage such as processing of undee data analysis, its are used gain ground increasingly....
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