I think that for my reflow oven project, I will tack on another part to it since I am using a dsPIC for it (lol, overkill) and it has free quad encoder pins. I was thinking of also enabling it to control a spinning turntable and measure the speed of the table. Maybe the table could have a small vise whose that could travel along a locking rail at various distances from the center and maybe a temperature sensor (or some small heater of some kind). It's use would be to calibrate the accelerometer and gyroscope ICs to figure out their actual scale factors and biases at different temperatures by applying known linear accelerations and angular velocities to the ICs at known temperatures.
But I'm having trouble finding such a motor and anything resembling a small lightweight PCB vice to go on the table. THis is going to be a stationary project so It'd be nice to not have to use batteries. But AC motors tend to have fixed speed without complex electronics which I guess doesn't matter too much since I don't really need to test the devices at multiple speeds. But if I use a DC motor then I have to get batteries, or a high power AC-DC converter. I do have a 12V 20A bench supply, but let's just say I want this system to be self contained.
Can anyone think of any ideas for the motor? Like a motor that can run off of rectified, but unsmoothed DC current? or something like that? I'm also not sure how to apply a temperature to the test IC. I guess the temperature doesn't have to be accurate since the only thing that matters is how the scale factor and bias relate to the IC's internal temperature output. Just enough to get it above (and maybe below) room temperature by 30 degrees.
EDIT: I just thought of two problems- how am I actually supposed to get this IC onto the centrifuge? It's probably going to be a part of a much larger board and it's not like it's through-hole where I can just stick it into a calibration socket for calibration and then removing it and permanently installing it on the final board. And I'm not sure how to get the wires off of the spinning PCB either without them getting all wound up...
But I'm having trouble finding such a motor and anything resembling a small lightweight PCB vice to go on the table. THis is going to be a stationary project so It'd be nice to not have to use batteries. But AC motors tend to have fixed speed without complex electronics which I guess doesn't matter too much since I don't really need to test the devices at multiple speeds. But if I use a DC motor then I have to get batteries, or a high power AC-DC converter. I do have a 12V 20A bench supply, but let's just say I want this system to be self contained.
Can anyone think of any ideas for the motor? Like a motor that can run off of rectified, but unsmoothed DC current? or something like that? I'm also not sure how to apply a temperature to the test IC. I guess the temperature doesn't have to be accurate since the only thing that matters is how the scale factor and bias relate to the IC's internal temperature output. Just enough to get it above (and maybe below) room temperature by 30 degrees.
EDIT: I just thought of two problems- how am I actually supposed to get this IC onto the centrifuge? It's probably going to be a part of a much larger board and it's not like it's through-hole where I can just stick it into a calibration socket for calibration and then removing it and permanently installing it on the final board. And I'm not sure how to get the wires off of the spinning PCB either without them getting all wound up...
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