The humidity tag has no wiki summary.
1
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2answers
86 views
How does this soil moisture sensor work?
I found information on how a capacitance moisture sensor works, but I couldn't find any information on how the following sensor works. What is the theory behind this sensor?
4
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2answers
74 views
Does humidity relate to static sensitive?
Are components more static-sensitive in drier places or vice versa?
2
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3answers
357 views
Ideal temperature and humidity for preventing problematic ESD conditions?
I know manufacturers often keep components sensitive to ESD problems in climate controlled rooms and I'm just wondering what the ideal temperature and relative humidity is to prevent ESD problems?
2
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1answer
119 views
Will an oscillator be able to drive a transmission line
I want to build a soil moisture measurement probe based on this idea:
An oscillator feeds a transmission line burried in a soil via a termination resistor R1, XOR gate acts as a phase shift ...
0
votes
1answer
149 views
Experience with gel-filled junction boxes
A lost answer to one of my questions mentioned gel-filling junction boxes for moisture protection. Has anybody worked with this technique before?
I am particularly interested in how difficult it is ...
2
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1answer
137 views
Weatherproofing coax connections
I have coax-connectors connecting two cable runs that are subject to weather. Typically weatherproofing is done by wrapping the connection in suitable tape. This is a fairly messy solution if the ...
2
votes
1answer
248 views
Is there any accurate Temperature, Moisture or pressure reading strip?
I was wandering if there is any such sensor, that would read pressure, temperature or moisture ( approximately 12 inch long strip)? I want to be able to dip this sensor into water and have it be able ...
2
votes
3answers
507 views
Can a device be damaged by water even if there is no power supplied?
For example, say I submerged a computer mouse entirely. Assuming that I ensured that all traces of the water were gone, would the device suffer any issues?
It is my understanding currently that ...
0
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1answer
185 views
Determine humidity level of PCB circuit
How do I determine the minimum and maximum humidity allowed for a PCB mounted with IC's?
(Without having to use some sort of humidity chamber)
EDIT: During operation.
5
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5answers
382 views
What are viable approaches to a circuit to detect wet/moist cloth (bed-wetting)?
Trying to design a circuit that can reliably detect a situation where a child wets their bed. The 3 key requirements are --
Reliability of the approach
Ease of use, i.e. a no-fuss approach
Child's ...
3
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3answers
985 views
ICs with humidity or moisture sensitivity - bake recommendations
I purchased some ICs recently that included something I'd not seen before - a moisture 'sensor' on a paper strip with color indicators for a few specific levels of humidity. Once the paper reaches a ...
1
vote
1answer
572 views
Advice a humidity sensor with I²C interface
I like to interface a humidity sensor over the I²C bus.
It should come in a small package, and consume little power. Accuracy isn't that important. I'm using the DS1621 as temperature sensor, I'd ...
3
votes
2answers
210 views
Are PTC/resettable fuses really moisture senstive?
I recently bought some 0805 Multicomp PTC/resettable fuses from Farnell. They were MC36213 (500mA) and MC36206 (200mA). I plan to use these in product which may exist in a high humidity (~80-90%) ...
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6answers
1k views
Soil moisture measurement
Background
To kick-start my longstanding ambition of getting back into electronics, I decided to try and make a device that measures the soil moisture of potted plants to determine whether they need ...
11
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6answers
5k views
What's the best way to protect a board from corrosion in a hot/moist environment?
Some of my projects need to live outside for long periods. Sometimes, moisture gets into the enclosures. That means that a circuit board might be sitting around in contact with water for hours on ...
5
votes
1answer
166 views
High Temperature Humidity Sensor
Where can i get a high temperature humidity sensor for temperatures up to 700 or 800 degree Fahrenheit?
7
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3answers
503 views
Best humidity/temperature sensor for a nappy?
Special needs kids have big troubles with potty training. A 'wee-wee' alarm would be of a lot of help.
What would be a good way of detecting 'it' without electrocuting anybody? A possibility would be ...
