Recent content by cps.13

Hi, Are you still studying the course with Teesside Uni (I assume)? I am studying HND in Instrumentation and Control Principles and struggling a bit. I wonder if we can help each other out along the way? Cheers, Chris.

Hi, Are you still studying the course with Teesside Uni (I assume)? I am studying HND in Instrumentation and Control Principles and struggling a bit. I wonder if we can help each other out along the way? Cheers, Chris.

This may sounds like a stupid question but... If you were to use a subsea lifting bag filled with O2 it would rise to the surface. Would the same happen with CO2? I assume the density of CO2 is different so the amount required would be more or less than O2, but it is still less dense than...

Hi, I have a software application which calculates the CoG of an item when it is placed on to four weighing indicators. It calculates the CoG using the weight and distance between weighing points and provides the output as an X and Y co-ordinate of the object. What I would like to do is...

How would you see it by magnification? Thanks

Hi thanks for the reply - I know that the offset on the load cell is too large to be attributed to drift or output change once in situ. The load cell output is certainly damge of some description, what I am trying to determine is if it is overload, shock or torque that is causing it. i'll...

I have an application where I am trying to figure out the shock load being applied to a metal pin (load cell). It is a cylindrical load cell which is supported at either end, and compressed in the middle. There is a slight gap between the end supports and the section compressed in the middle...

1) The are no current limiting devices for the LED in this circuit. The opto-coupler would have a maximum input current rating, which if necessary would require a resistor, but depending on your circuit may not always require one. The LED is contained within the coupler, its not an LED you can...

Hi, Homework Statement I have the following question in my course work. What I do not understand is why it provides the relative density of natural gas?! Calculate the equivalent choked flow of propane through a particular valve if the choked flow of natural gas through it is 10 litres s–1...

So I have made an attempt to work this out, I have used to arbitrary figures to ensure I'm working it out correct. I have also changed my weight from 30kg to 10kg as this is a more accurate estimate. Weight of Rock = 10kg Weight of bag = 1kg Weight of CO2 = 108g TOTAL = 11.108Kg Volume of...

I appreciate that as the balloon rises the air will expand causing the balloon to expand, I plan to have a pressure relief value within the balloon/bag once I know the pressures required.

OK - but how do I convert a quantity of CO2 into kg? Is it the 30kg X density of CO2 as a gas?

Hi, I am working on a product design which would be used sub sea. It is designed to lift a small load off the sea bed. I have not worked out the exact details yet but the following should be a good start: Load 30Kg Depth 30m I plan on using an air bag of some description - the bag needs to...

sorry - should have said... it needs to be removable so I cannot "weld" it in using loctite.

Hi, i'm hoping to get a bit of assistance with stopping a nut from coming un-done if possible. I have an application using a load cell which is being inserted into metal rod, and then pulled under tension. The load cell is inserted into a hole drilled in the rod and screwed in at the bottom...