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30金幣求助5句話,禁止軟件翻譯
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1.The values of Rs and l of the test specimen are calculated automatically, once T1, T2 and Q have been measured. Results are accurate provided that the test temperatures fall within the limits used during calibration, and that Rs does not fall outside the calibration range obtained with the reference specimens. 2. At each set of conditions, solve Eq 1 mathematically for N and Ro, using a linear regression analysis of the results for several sets of data for Rs and (T1− T2)/Q produced as a result of testing several calibration specimens. A similar series of tests carried out at the different temperatures provides new values of N and Ro. 3. At each set of conditions, solve Eq 1 mathematically for N and Ro after measuring a pair of reference specimens to yield two sets of data for Rs and (T1−T2)/Q. Eq 1 can be used subsequently to determine Rs of the test specimen following measurement of T1, T2, and Q providing the calculated Rs falls within the calibration range corresponding to the particular pair of reference specimens in accordance with 9.2. By calibrating with additional reference specimens of different thermal resistances, several linear equations can be generated, each covering a part of the overall range 4.he heat flux transducer (HFT) is a device that will generate an electrical signal in proportion to the heat flux across it. The level of output required (sensitivity) greatly depends on the rest of the instrumentation used to read it. The overall performance of the HFT and its readout instrumentation shall be such as to meet the requirements in Section 13 5. The loading force must be transmitted to the stack through a gimball joint (2) that allows up to 5° swivel in the plane perpendicular to the axis of the stack. Suitable insulator plate (3) separates the gimball joint from the top plate (4). |
» 搶金幣啦!回帖就可以得到:
+1/87
+3/77
+2/50
+1/40
+1/40
+1/35
+1/9
+1/8
+1/7
+1/7
+1/7
+1/6
+1/6
+1/6
+1/5
+1/4
+1/3
+1/3
+1/1
+1/1
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1. 一旦測試出T1, T2和Q值,就會自動計(jì)算出測試棒的Rs 和l值。加入測試溫度降幅在校準(zhǔn)限定范圍內(nèi),Rs 和l值的結(jié)果是接確的, Rs不會超出對照樣品得到的校準(zhǔn)范圍。 2. 在每組條件下,通過對照樣品測試得到的若干組RS和 (T1− T2)/Q的數(shù)據(jù)進(jìn)行線性回歸分析,用Eq.1來自動計(jì)算N和RO. 同時在不同溫度條件下做一組類似的測試。 3、在每組條件下,測試一對照樣品從而得到兩組RS和 (T1− T2)/Q的數(shù)據(jù),然后用Eq.1來自動計(jì)算N和RO。 假如計(jì)算的RS下降在校準(zhǔn)范圍以內(nèi)(該校準(zhǔn)范圍根據(jù)在與9.2一致的另外一對對照樣品確定的),則在進(jìn)行T1,T2和Q測試之后,用Eq 1來確定RS對照樣本。通過不同熱阻的另外一對對照樣品,能夠建立若干線性方程,每個線性方程會對應(yīng)總范圍的一部分。 4、HFT是一種能對橫截面穿過的熱量產(chǎn)生電流型號的裝置。 靈敏度水平主要取決于其他數(shù)據(jù)讀取儀器。HFT的總性能和它的讀取器符合13節(jié)所提出的要求。 5、載荷必須傳送給方向節(jié)點(diǎn)2裝置,而該節(jié)點(diǎn)只容許在垂直于裝置的平面上旋轉(zhuǎn)5°。 配套的絕緣板使方向節(jié)點(diǎn)和頂部的金屬板絕緣。 僅供參考。 |
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