A displacement transducer has the following specifications Linearity error ±0.1% of reading, Drift ±0.15%/C of reading, sensitiv
ity error ±0.25% of reading, excitation 10-25 V DC, output 0-5 V DC, range 0-5 cm. The output is to be indicated on a voltmeter with accuracy of ±0.15% of the reading and has a resolution of 10 µV. The system will be used at "room temperature" which can vary by as much as 5C. Estimate the design stage uncertainty in a 3.5 cm reading assuming 95% confidence. Read your book to learn more details about this.
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Answer:
2.135
Explanation:
Lets make use of these variables
Ox 16.5 kpsi, and Oy --14,5 kpsi
To determine the factor of safety for the states of plane stress. We have to first understand the concept of Coulomb-Mohr theory.
Mohr–Coulomb theory is a mathematical model describing the response of brittle materials such as concrete, or rubble piles, to shear stress as well as normal stress.
Please refer to attachment for the step by step solution.
Answer:
In Btu:
Q=0.001390 Btu.
In Joule:
Q=1.467 J
Part B:
Temperature at midpoint=274.866 C
Explanation:
Thermal Conductivity=k=30 (Btu/hr)/(ft ⋅ °F)=
Thermal Conductivity is SI units:
Length=20 cm=0.2 m= (20*0.0328) ft=0.656 ft
Radius=4/2=2 mm =0.002 m=(0.002*3.28)ft=0.00656 ft
T_1=500 C=932 F
T_2=50 C= 122 F
Part A:
In Joules (J)
Heat Q is:
In Btu:
Heat Q is:
PArt B:
At midpoint Length=L/2=0.1 m
On rearranging: