日方回复邮件原文如下:
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Dear Professor CG,
I'm sorry to reply your e-mail so late.
We investigated whether we can sell the measuring instrument for tensile
stresses in membrane.
As a result, we may sell it through our affiliated company "Techno Wave".
Then, we would like to make sure of your intention.
Do you want to buy the device still now?
How many devices do you need?
And you should bear in mind that we have calibration data for Japanese
membrane material only.
Therefore, when using the device for Chinese membrane matarial, you will
need to calibrate the device.
Sincerely yours,
Susumu Yoshinaka
Research Engineer
Kajima Technical Research Institute
2-19-1, Tobitakyu Chofu City, Tokyo 182-0036, Japan
Thanks a lot professor cheng gang.We need the instrument mainly for test
the stress of pvc material with pvdf coating .if suitable,could you please
give me further information about the price. tailorbird 天翌。
Dear All,
The inner tensile strength can be inspected by a press gauge, this is a very popular device which used to test the membrane tensile strength after installation.
It is difficult to measure the stress of cable accurately.
1.from jacking pump can not consider the prestress lost.
2.since the section of cable is not uniform, the strain
instrument is not precise accordingly.
内置光纤系统监测钢索内力
Meassurement of prestressed and actual load conditions
Meassurement of prestressed load conditions and construction monitoring are problems of everyday work. The new developed tension rod system (with the SOFO optical fibre meassuring system) is an innovative, simple and compact solution for this problem. The system has been used to monitor the construction of the glass roof of the railway station in Helsinki with an amazing success.