Ask Question, Ask an Expert

+1-415-315-9853

info@mywordsolution.com

Ask Mechanical Engineering Expert

Q1. The requirement to sense glass bottles leaving an automatic washer on a production line conveyor belt has been notified to you. The output from sensor is to be of binary form, that is, logical 1 when the part is present and logical 0 when no part is present. It is as well essential to make sure that a change of sensor state takes place closer to the sensor when a bottle approaches than when it moves away. The switching distance will lie between 5 and 20 mm. The production line is for food products and environment is clean and maintained at a temperature of 15°C.  Bottles will pass the sensor at a rate of every 10 second. There is no need for the protection from contact with objects however it must be proof against the water drips.

Propose an appropriate sensor and justify your recommendation. Sketch a diagram which shows the functional blocks in the sensor and describe each function.

Would the suggested sensor be appropriate if a change was made from glass to the plastic bottles?

Q2.

a) In which kind of memory is the executive program that controls the PLC positioned?

b) How is loss of the loaded program prevented whenever the PLC is switched off?

c) Is opto-coupling found just on the inputs to a PLC?

Mechanical Engineering, Engineering

  • Category:- Mechanical Engineering
  • Reference No.:- M910069

Have any Question? 


Related Questions in Mechanical Engineering

Health and safety management 1 the following gas

Health and Safety Management 1. The following gas detector tubes are available for direct reading of concentrations of the toxic gas hydrogen sulfide Tube Concentration 4HT 1-40% 4HH 0.1-4.0% 4H 10-3200 ppm 4M 12.5-500 p ...

The average heat evolved by the oxidation of foodstuffs in

The average heat evolved by the oxidation of foodstuffs in an average adult per hour per kilogram of body weight is 7.20 kJ kg-1 hr -1 . Assume the weight of an average adult is 62.0 kg. Suppose the total heat evolved by ...

1 what is the pressure panbspin the figure the specific

1. What is the pressure p A  in the figure? The specific gravity of the oil is 0.8. 2. Find the difference in pressure between tanks A and B, if  d 1 = 2ft, d 2 = 6 in., d 3 = 2.4 in., and d 4 = 4 in. 3. What is the pres ...

A system and reservoir are in contact with each other he

A system and reservoir are in contact with each other. he volumes and numbers of particles are constant for both, and the overall energy of the universe is conserved. he degeneracy of the system obeys the equation ­ = AE ...

Question 1 -1 plot the singular stress components sigmaxx

Question 1 - 1) Plot the singular stress components, σ xx , σ yy and τ xy for a cracked body under Mode I, Mode II and Mode III loading with a stress intensity factor K i = 10 MPa·m 1/2 (i = I, II and III). Plot the stre ...

Name several ways by which the loss of initial preload can

Name several ways by which the loss of initial preload can be reduced ? Roughly how much embedment relaxation could we expect from new parts used in a non-gasketed, steel joint? Define elastic interactions. How can elast ...

1 calculate the following for the function fx e-3x - 2xa

1) Calculate the following for the function f(x) = e -3x - 2x. a. Calculate the derivation of the function by hand. Write a MATLAB function that calculates the derivative of this function and calculate the derivative at ...

Health insurance market place healthcaregov a project

Health Insurance Market Place (healthcare.gov): A Project Management Perspective The information: Use information from: 1) "From the Start, Signs of Trouble at Health Portal(Which is in the attached PDF file)" and 2) "Ho ...

Equipment engineering and design structural failure

Equipment Engineering and Design Structural Failure Problem- Background - A 6 ton pressure vessel - see dimensioned drawing - was being lowered onto a "stillage"or temporary supporting structure for testing outside a fac ...

1 estimate the viscosity of nitrogen at 175 k using given

1. Estimate the viscosity of nitrogen at 175 K using given equation. 2. Calculate the viscosity of oxygen at 350°K and compare with the value given in Appendix I. 3. What is the percentage change in the viscosity of wate ...

  • 4,153,160 Questions Asked
  • 13,132 Experts
  • 2,558,936 Questions Answered

Ask Experts for help!!

Looking for Assignment Help?

Start excelling in your Courses, Get help with Assignment

Write us your full requirement for evaluation and you will receive response within 20 minutes turnaround time.

Ask Now Help with Problems, Get a Best Answer

Section onea in an atwood machine suppose two objects of

SECTION ONE (a) In an Atwood Machine, suppose two objects of unequal mass are hung vertically over a frictionless

Part 1you work in hr for a company that operates a factory

Part 1: You work in HR for a company that operates a factory manufacturing fiberglass. There are several hundred empl

Details on advanced accounting paperthis paper is intended

DETAILS ON ADVANCED ACCOUNTING PAPER This paper is intended for students to apply the theoretical knowledge around ac

Create a provider database and related reports and queries

Create a provider database and related reports and queries to capture contact information for potential PC component pro

Describe what you learned about the impact of economic

Describe what you learned about the impact of economic, social, and demographic trends affecting the US labor environmen