Details:
Details : Technical Specifications :
(1) a pendulum,
1. the pendulum in the form of : double pendulum
2, placed the total quality : 120 grams of 3 ± 1 gram,
3. Giving the glass value : 440S ± 23M
(2) a special automatic timer.
1.input AC voltage AC220V 50Hz ± 10% (external power output 9V, exchanges, DC. can be positive and negative)
2, rated input power 2.5W.
3, the minimum time resolution 1S.
4, the scope of records (IS-9999S).
5, testing accuracy error of ± 2S. Principle and Structure : Principle : There is some weight and form of the pendulum, in contact with the measured coating on the surface, As the pendulum of gravity and the coating is a complex interaction between the flexibility and viscoelastic properties of the two untried placed by the weight Shape and geographical and environmental factors, therefore, the more soft surface, in contact with the surface gravity of the pendulum
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