Polhe3 cell wall thickness me

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Revision as of 23:09, 25 July 2011 by Jie (Talk | contribs) (New page: Here we used the ultrasonic thickness gauge to measure the glass cell wall thickness. We did the measure for Cell Astralweek, Maureen and Brady. Firstly we did a calibration for the veloci...)

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Here we used the ultrasonic thickness gauge to measure the glass cell wall thickness. We did the measure for Cell Astralweek, Maureen and Brady. Firstly we did a calibration for the velocity. Then we pressed the probe on the surface and it worked very well as long as kept straightly. For the transfer tube wall, we measured three different points. One point is close to pumping chamber, one point is in the middle and another one is close to target chamber.

1. Maureen

a. Transfer tube wall thickness: 1.63mm 1.62mm 1.64mm average: 1.63mm

b. Target chamber wall thickness: 1.54mm 1.52mm average: 1.53mm

c. Pumping chamber wall thickness: 3.02mm 3.10mm average: 3.06mm


2. Astralweek

a. Transfer tube wall thickness: 1.59mm 1.59mm 1.58mm average: 1.587mm

b. Target chamber wall thickness: 1.58mm 1.64mm 1.58mm average: 1.60mm

c. Pumping chamber wall thickness: 3.05mm 3.19mm 3.33mm average: 3.19mm


3. Brady

a. Transfer tube wall thickness: 1.36mm 1.26mm 1.36mm average: 1.327mm

b. Target chamber wall thickness: 1.44mm 1.40mm 1.38mm average: 1.407mm

c. Pumping chamber wall thickness: 2.8mm 2.84mm 2.54mm average: 2.727mm

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