A flow meter sensor is connected to the microcontroller card to convert the signal and display it as a volume flow rate (L/min.) on the data show screen. Standard volume (graduated cylinder) with stopwatch were employed to calibrate the assemble system, and the calibration results were tabulated as following: Measuri L/min. 51 52 54.5 57 68 ng value Real L/min. 53 55 57 64 71 76 77 0 73 74 80 value Determine: 1- Absolute relative error (ARE). 2- Mean value, deviation (error) value and standard deviation (σ). 3- Draw the calibration curve.

I need a clear answer by hand, not by keyboard  and fast answer within 20 minutes. Thank you | dybala

Subject: Mechanical Measurements Do not copy online solutions. It's different value

I need help understanding the easy to solve this problem.  Explain everything, including the linear interpolation.

3. The results of a simple calibration of pressure transducer and its specification are shown in Figure 1 and Table 1. The sensitivity of the pressure sensor is 0.5 V/kPa (given by manufacturer) and the linear curve fit for the upscale calibration is given as y = 0.51x +0.02 . a) Calculate the hysteresis and linearity errors for this calibration. b) Please discuss either the pressure transducer can now be used for the actual measurement or not. Table 1: Pressure tansducer specification Оperation Input range 0- 5 kPa + 15 V 0 - 2.5 V Excitation Output range Performance Linearity error ± 3 % Hysteresis Less than + 15% Sensitivity error + 5% Thermal sensitivity error + 0.02% / °C Temperature range 0 - 50 °C 2.5 upacale mesurement downscale measurement 0.5 0.5 3.5 pressure, kPa Оприt, voltage ((V) Upscale Input, pressure (kPa) Downscale 0.00 0.00 1 0.53 0.48 2 1.05 0.94 3 1.62 1.45 4 2.12 1.95 5 2.50 2.50 Figure 1: Calibration results (plot and tabulated data)

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b) A linear variable displacement transducer (LVDT) senses displacement and indicates a voltage output, which is linear to the input. Figure 1 shows an LVDT setup used for static calibration. It uses a micrometre to apply the known displacement and a voltmeter for the output. i) Suggest the independent, dependent and extraneous variables in this calibration. ii) Indicate the basic functional elements of the device in Figure 1 in the form of block diagram. 10 Micrometer Fixed mounts Connector Excitation voltage in Figure 1 Primary coil xx_w_ LVDT E Output voltage 10.135 Voltmeter Secondary coil Core

4:07 3G l. Moodle A bbb2.du.edu.om EE ...Session (15-3- Said Grami O College of Engineering Vision for the Future Question 3 During a step function calibration, a first-order instrument is exposed to a step change of 200 units. 1- If after 1.5 s the instrument indicates 140 units, find the instrument time constant. 2- find the error in the indicated value after 2 s S. 3- Find the raise time at 90 % of the system. y(0)=0 units; K=1 unit/unit. Question 4 A first order instrument with a time constant of 2 seconds is to be used to measure a periodic input. If a dynamic error of ±2% can be tolerated, 1- determine the maximum frequency of periodic input that can be measured. 2- What is the associated time lag (in seconds) at that frequency? MECH374: Instrumentation and Measurement Said Grami Practice

QUESTION 2 Solve the following differential equation in Matlab using ode45.m. Use time interval of 0.1 second. (Don't use options in ode45 to change teh tolerance.) d²x(t) dt² x(0)-1, +x²=0 dx dt #L- =1. =0 What is dx/dt (t=2.5)? -0.217 -1.32 0.432 0.556 -0.485 ○ 0.120

QUESTION 1 Solve the following differential equation in Matlab using ode45.m. Use time interval of 0.1 second. (Don't use options in ode45 to change teh tolerance.) d²x (1) +x(t) dx(1) dt +x(t)=0 dx x(0) = 0, =1. dt =0 What is x(t=0.8)? 0.653 ○ 0.726 ○ 0.498 0.547 ○ 0.651 ○ 0.895