Recent content by runningman19

Still looking at the data sheet on this. So this would act to stabilize my excitation from the power supply, as well as an ADC? Additionally, what about filtering? It looks like a great option. Having an excitation regulator in built would be extremely helpful given that signal is a function of...

I’m still reading through but that note is extremely helpful. Thank you.

I still have yet to receive the sensor. The lead time on it is about 1-3 weeks, and we just ordered it a few days ago. I will post an oscilloscope pic as soon as I have one. Additionally, yes the voltage on the power supply can be set higher. The Arduino is going to have its own power supply.

The sensor is a Futek TFF425 torque sensor. I was planning on using a 10 volt power supply for excitation, and according to the data sheet this would result in a 20mV output at maximum load (in this case, 160 in-oz). Additionally, I was planning on connecting the negative signal pin to ground...

Hi Everyone, I would like to measure voltage output from a sensor via an Arduino. The sensor outputs 20 mV at max capacity. I'd like to bump this up to around 5 volts so it is easier to measure. My plan was to use a non-inverting topology coupled with an LM393N op-amp. The schematic for a...

Placing a thread in the center of the tank will not work, as the impeller and impeller shaft are there. The three thread idea, however, would work. I think you’re saying we should determine the vector of the vertical component without the motor spinning, then start the motor spinning, measure...

What do you mean by stabilized in XY plane by Bernoulli’s pressure drop? How does this act as a stabilizing force? Sorry if it’s a dumb question; I’m not familiar with air bearings.

Actually the tank wouldn’t be rotating at all. We’re attaching a fish scale to the turntable to measure the impeller torque. The tank should just be able to rotate freely, it doesn’t actually need to move. That is a good suggestion. I’m going to give it a shot.

I looked into it but they are very expensive (along the lines of $4000). From what I’ve heard you can build them, but how? Is there literature where I can learn more about this?

Hi Everyone, I am working on a project which involves building an extremely low friction turntable. To give you an idea of how low, we're placing a tank full of water on top of the turntable, placing a stirrer into the tank, turning the stirrer on and trying to get the tank to rotate on the...

Homework Statement We recently collected data on a reverse osmosis system for our unit ops lab. The report LERF (Laboratory Experiment Request Form) requests that we ascertain a value of Aw, the water permeability coefficient, for our membrane. We need to perform a T-Test on the data, however...

Hi Everyone, I am working on a project which requires me to determine the torque on the impeller shaft of stirred tank. Currently as I see it, there are 2 viable options: To measure the torque in the shaft using a torque transducer such as this one. This is by far the most accurate means of...

C_{p(mixture)}=\sum C_{p(i)}x_i Thank You.

Homework Statement A mixture of hydrogen, carbon monoxide and carbon dioxide is being fed to a compressor at 2.0 bar and 25 C. The overall flow rate is 17.47 SCMS and its composition is 73.5 mol% H2, 13.7 mol% CO and the balance CO2 The compressor operates adiabatically and reversibly with a...

Hi Everyone, I'm currently working on solving a complex chemical process system in a program similar to Aspen (DWSIM). We aren't given any molar flow rates of feed streams, only constraints on various parts of the system (i.e. only 5 mol% of ethylene may enter the reactor at a time). 1...