I am a HND chemical Engineering student in my final year with no background in science whatsoever
Now as we are not allowed to use gears my detention mechanism is going to be Iodine clock reaction.
However, this speed is also dependent on load and gear ratio. Out of theseparameters, gear ratio is the most significant because it helps to balancethe speed and torque for our car (.
A brief description of y project:
Sorry but you are getting that the wrong way round. You can't buy all the components you need and THEN start designing something. Until you have a design fairly well worked out you have no way to know what components you will need. So initially, what adaptations are you making to the design in that paper you linked to? From what you've said so far it sounds like you are simply intending to build their design.A few questions that need answering -Why do you think you are not allowed to use gears? You will have a lot of trouble finding ungeared motor(s) that will work.How much power will you get from your thermo electric generators? What voltage/current? What size is the car? How much will it weigh ready to run?But fortunately if the car only needs to go forwards you will not need a motor driver. So that's one worry out of the way. But you should replace the Darlington with a MOSFET, which will be more efficient.BTW what's a "detention mechanism"?Steve
That does not say a lot for the course then.As @slipstick said what on earth is a "detention mechanism"?Also what is the restriction on gears as the paper you referenced states
At last we can categorically state that this isn't an xy problem.
To find an appropriate motor driver, you first need to know what type of motor you're going to use, and your power supply.The type of motor depends on the power supply - I guess it's a DC supply so that pretty much narrows it down to brushed or brushless. You'll also need to find out the available current and voltage and with it the total power you have for your motor.OK so now you have chosen your motor(s). Now it is time to figure out how to control them. Select an appropriate driver based on the voltage and current to be switched, and the type of motor you have. Brushed and brushless are quite different in that respect. Brushed is easiest, a MOSFET transistor will do.
While an Iodine clock is a neat trick, I'm not sure what the point of it is - You can control the desired runtime by use of millis directly in the code. The project you're emulating seems to have no real reason either other than 'because we could'.
...http://www.haitronic.cn/index.php?route=product/product&product_id=256I will be fabricating the reaction containers today after that only will i be able to determine the power output form the thermometric generators. Detention mechanism is the stopping mechanism of the car. Here I am required to use an iodine clock reaction as detention mechanism(to stop the car). .... Initially i was supposed to use photo resistor but then i was advised to use LDR to detect the color change and use the change in resistance to send signal to stop the car. ....Now i'm stuck with this and there is not enough help available in this small island.
Just that they want me to produce a car that dosen't run on battery and is powered by a chemical reaction.
I purchased a HR16 4WD car chassis that comeswith 4 motors. I think they have built in gears( can't really figure that out)
How to identify if the motor has brushes,
I purchased a HR16 4WD car chassis that comeswith 4 motors. I think they have built in gears( can't really figure that out)....How to identify if the motor has brushes
I'm preparing the exact same project according to the paper.
My BLDC water pumps and BLDC computer fans all have just two wires.
Have you got the chassis kit already as if it is coming from China it may take some time to arrive?The link does not provide much information. It looks like each motor drives a geared axle that probably has a wheel on one side and a "velocimetry code disk" on the other. It looks like it takes 4 1.5V batteries wired in series, so it is using 6V. Are your generators going to produce 6V?You also need to consider the current. Once you have the kit it may have more information or you may be able to Google it from part numbers etc.To me a photo resistor and a Light Dependent Resistor (LDR) are the same thing - maybe somebody else knows different.You big challenge is probably going to be getting the electrical/mechanical aspects of this right so that enough power is generated to drive the car. What is the role of the Arduino, could everything not be done by electronics?What small island are you on?
In other words: they're looking for you to build a DIY battery. That's at least what you seem to describe.Fair chance - such motors easily do a couple thousand RPM. Too fast for most direct drives.Short from taking it apart: ask the manufacturer.Oh, GrooveFlotilla referred to this. I have to agree that it's good to know we're not having yet another xy problem on our hands.
The motors are geared. And if they only have 2 wires to connect them they are almost certainly brushed. Brushless motors almost always have 3 wires.Steve
So, you are not contributing anything new. Hmmm.