Detector Building C

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waterlubber
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Re: Detector Building C

Post by waterlubber » November 27th, 2019, 6:03 am

lindsmaurer wrote:
November 27th, 2019, 5:24 am
Umaroth wrote:
November 26th, 2019, 10:31 pm
Detector Building rules have become English grammar: a bunch of rules, then exceptions to the rules, then exceptions to the exceptions.
Yep.
You know it’s bad when an event has more FAQs than Mission ever did.
I wonder if they'll run out of appeal forms at NY States again.

With how close scores are likely to be, I can already see the disaster brewing.
Hopefully we get a rewrite or update to the rules rather than just FAQs and clarifications.
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Re: Detector Building C

Post by Tekguy » December 5th, 2019, 5:36 am

Does anyone know if a potentiometer (variable resistor) could be used for on-the-fly calibration at the event?
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Re: Detector Building C

Post by sciencegirl03 » December 5th, 2019, 10:04 am

Tekguy wrote:
December 5th, 2019, 5:36 am
Does anyone know if a potentiometer (variable resistor) could be used for on-the-fly calibration at the event?
Hmm..
I think you could use a potentiometer to adjust the brightness/contrast of your LCD if you are using one.
From what I have heard, the event supervisor may not show you the reading on the thermometer at the 4 stations, so you may not know what to calibrate/adjust. They do not allow calibrating your probe once you start testing.

But still worth a clarification if you want to be sure.
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Re: Detector Building C

Post by lindsmaurer » December 5th, 2019, 8:09 pm

sciencegirl03 wrote:
December 5th, 2019, 10:04 am
Tekguy wrote:
December 5th, 2019, 5:36 am
Does anyone know if a potentiometer (variable resistor) could be used for on-the-fly calibration at the event?
Hmm..
I think you could use a potentiometer to adjust the brightness/contrast of your LCD if you are using one.
From what I have heard, the event supervisor may not show you the reading on the thermometer at the 4 stations, so you may not know what to calibrate/adjust. They do not allow calibrating your probe once you start testing.

But still worth a clarification if you want to be sure.
I mean, people should be using their own calibraton thermometer, but we won't be able to calibrate once we start testing. I'm guessing the "on the fly" calibration comment refers to states and nats level though, where we have to calibrate during the actual event.
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 Circuits (4), Code, Detector (1), GLM, Gravity (8), Sounds
Would’ve done first four at states ;-;
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Re: Detector Building C

Post by Tekguy » December 6th, 2019, 5:52 am

lindsmaurer wrote:
December 5th, 2019, 8:09 pm
sciencegirl03 wrote:
December 5th, 2019, 10:04 am
Tekguy wrote:
December 5th, 2019, 5:36 am
Does anyone know if a potentiometer (variable resistor) could be used for on-the-fly calibration at the event?
Hmm..
I think you could use a potentiometer to adjust the brightness/contrast of your LCD if you are using one.
From what I have heard, the event supervisor may not show you the reading on the thermometer at the 4 stations, so you may not know what to calibrate/adjust. They do not allow calibrating your probe once you start testing.

But still worth a clarification if you want to be sure.
I mean, people should be using their own calibraton thermometer, but we won't be able to calibrate once we start testing. I'm guessing the "on the fly" calibration comment refers to states and nats level though, where we have to calibrate during the actual event.
By on-the-fly calibration I was referring to making small adjustments to the thermistor against the calibration thermometer (during the setup and calibration time) without modifying the code in any way (for example if the thermistor is reading a little warm or a little cold).
"Anything Worth Doing Is Worth Doing Right."
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Re: Detector Building C

Post by LIPX3 » December 11th, 2019, 10:55 am

Tekguy wrote:
December 6th, 2019, 5:52 am
lindsmaurer wrote:
December 5th, 2019, 8:09 pm
sciencegirl03 wrote:
December 5th, 2019, 10:04 am


Hmm..
I think you could use a potentiometer to adjust the brightness/contrast of your LCD if you are using one.
From what I have heard, the event supervisor may not show you the reading on the thermometer at the 4 stations, so you may not know what to calibrate/adjust. They do not allow calibrating your probe once you start testing.

But still worth a clarification if you want to be sure.
I mean, people should be using their own calibraton thermometer, but we won't be able to calibrate once we start testing. I'm guessing the "on the fly" calibration comment refers to states and nats level though, where we have to calibrate during the actual event.
By on-the-fly calibration I was referring to making small adjustments to the thermistor against the calibration thermometer (during the setup and calibration time) without modifying the code in any way (for example if the thermistor is reading a little warm or a little cold).
How would you do such calibration without modifying the code? The only way I can think of is with the use of a potentiometer, but I think you could also run into accuracy issues there as well.

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Re: Detector Building C

Post by lindsmaurer » December 12th, 2019, 4:52 am

LIPX3 wrote:
December 11th, 2019, 10:55 am
Tekguy wrote:
December 6th, 2019, 5:52 am
lindsmaurer wrote:
December 5th, 2019, 8:09 pm


I mean, people should be using their own calibraton thermometer, but we won't be able to calibrate once we start testing. I'm guessing the "on the fly" calibration comment refers to states and nats level though, where we have to calibrate during the actual event.
By on-the-fly calibration I was referring to making small adjustments to the thermistor against the calibration thermometer (during the setup and calibration time) without modifying the code in any way (for example if the thermistor is reading a little warm or a little cold).
How would you do such calibration without modifying the code? The only way I can think of is with the use of a potentiometer, but I think you could also run into accuracy issues there as well.

I question was about using a potentiometer originally. I think it might help but not much, and would probably mess up your calibrations more than help them.
Solon HS Junior Captain
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1-3 placements: 40
Medals + ribbons: 72
 Circuits (4), Code, Detector (1), GLM, Gravity (8), Sounds
Would’ve done first four at states ;-;
 Circuits, Code, Detector, GLM, Dynamic, Machines? Sounds? Gravity?

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Re: Detector Building C

Post by LIPX3 » December 12th, 2019, 10:15 am

lindsmaurer wrote:
December 12th, 2019, 4:52 am
LIPX3 wrote:
December 11th, 2019, 10:55 am
Tekguy wrote:
December 6th, 2019, 5:52 am


By on-the-fly calibration I was referring to making small adjustments to the thermistor against the calibration thermometer (during the setup and calibration time) without modifying the code in any way (for example if the thermistor is reading a little warm or a little cold).
How would you do such calibration without modifying the code? The only way I can think of is with the use of a potentiometer, but I think you could also run into accuracy issues there as well.

I question was about using a potentiometer originally. I think it might help but not much, and would probably mess up your calibrations more than help them.
It doesn't matter much. At any serious competition, all competitive teams will have a near perfect device and who does well will come down to luck.

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Re: Detector Building C

Post by aidencohen » December 15th, 2019, 2:36 pm

I've been thinking about using a non traditional device which doesn't take in voltage as an input to measure temperature to get around the ADC resolution stuff, and it's worked so far. The sensor is a capacitor which is pretty much a basic electronic component, do you think that this is legal? Because the rules specify a voltage to temperature relationship.

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Re: Detector Building C

Post by lindsmaurer » December 15th, 2019, 7:30 pm

aidencohen wrote:
December 15th, 2019, 2:36 pm
I've been thinking about using a non traditional device which doesn't take in voltage as an input to measure temperature to get around the ADC resolution stuff, and it's worked so far. The sensor is a capacitor which is pretty much a basic electronic component, do you think that this is legal? Because the rules specify a voltage to temperature relationship.
I think the device itself is legal, but your logs will lose points for not having a voltage to temperature relationship
Solon HS Junior Captain
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1-3 placements: 40
Medals + ribbons: 72
 Circuits (4), Code, Detector (1), GLM, Gravity (8), Sounds
Would’ve done first four at states ;-;
 Circuits, Code, Detector, GLM, Dynamic, Machines? Sounds? Gravity?

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