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by jinhusong
Yesterday, 9:41 am
Forum: Detector Building C
Topic: How to run the event?
Replies: 2
Views: 70

Re: How to run the event?

Thanks.

Jinhu
by jinhusong
November 11th, 2019, 10:41 am
Forum: Detector Building C
Topic: How to run the event?
Replies: 2
Views: 70

How to run the event?

I have some questions about the details of running the event: 1. When to record the device reading and thermometer reading? My plan is within the 2 minutes, students tell me that their reading is ready (stabilized), then I wait 15 seconds to record them, maybe a photo snapshot. Just try to avoid stu...
by jinhusong
November 10th, 2019, 1:34 pm
Forum: Detector Building C
Topic: Wiring for Temperature Probe
Replies: 4
Views: 414

Re: Wiring for Temperature Probe

I played with TMP36 with Arduino Due for. a while. It outputs different voltages between USB power Arduino and 9V battery power Arduino. After all kinds of testing, we found power TMP36 from a separate power supply solved the problem. The root cause is still not clear, we may need to borrow a scope ...
by jinhusong
November 3rd, 2019, 3:32 pm
Forum: Detector Building C
Topic: Detector Building C
Replies: 78
Views: 5009

Re: Detector Building C

No. It is already water-proof.

Jinhu
by jinhusong
November 1st, 2019, 8:57 pm
Forum: Detector Building C
Topic: Detector Building C
Replies: 78
Views: 5009

Re: Detector Building C

For regional, you can pre-calibrate your device before the event, because it will use your own thermometer to do the event. The 10 minutes setup, you can safely skip it or just verify one or two points. For state, The ES will give you a thermometer, you have to calibrate your device with that thermo...
by jinhusong
November 1st, 2019, 8:53 pm
Forum: Boomilever B/C
Topic: Rule 5a.v.
Replies: 10
Views: 987

Re: Rule 5a.v.

That 8cm will make the tube style unpractical and make the box style very difficult.
by jinhusong
October 14th, 2019, 6:25 pm
Forum: Detector Building C
Topic: Detector Building C
Replies: 78
Views: 5009

Re: Detector Building C

I have posted a question to the FAQ to clarify for what it is worth.
Thanks for doing that.

Hope your question includes whether resistor and capacitor are allowed to add by students?

Tiger
by jinhusong
October 14th, 2019, 6:20 pm
Forum: Detector Building C
Topic: Detector Building C
Replies: 78
Views: 5009

Re: Detector Building C

1. Calibration Curve fit: thermistor with full Steinhart–Hart equation, 4 points. TMP36/M35: also 4 points to the 3rd degree of polynomial. So in #1, you said "full Steinhart–Hart equation, 4 points ", does the 4 points mean, input 4 points instead of 3? Because in my findings, I have discovered th...
by jinhusong
October 9th, 2019, 2:36 pm
Forum: Detector Building C
Topic: Detector Building C
Replies: 78
Views: 5009

Re: Detector Building C

FAQ: (Section: 3 / Paragraph: b / Line: 1) 10/09/2019 ARE WE ALLOWED TO USE MORE THAN ONE TEMPERATURE SENSOR AND USE AN AVERAGE READING OF THEM, OR IS THERE A LIMIT OF ONLY ONE INPUT DEVICE? No, only one sensor per device is allowed. ============== I was thinking use different thermistors for readin...
by jinhusong
October 5th, 2019, 8:29 pm
Forum: Detector Building C
Topic: Detector Building C
Replies: 78
Views: 5009

Re: Detector Building C

This list is so quiet, so I am just going to post something. This year, I will coach 3 C teams (same school) for building events. Here are some my thoughts, any feedback are welcome. 1. Calibration Curve fit: thermistor with full Steinhart–Hart equation, 4 points. TMP36/M35: also 4 points to the 3rd...

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