If only there was an alternative to Google and Apple app stores, and to being a "green texter". I hate duopolies.
Caterpillar offers phone with built-in FLIR camera
301–310 of 343 posts
Re: Caterpillar offers phone with built-in FLIR camera
#302Earlier quoted context omitted.
Note that that's not a Raman spectrometer, just a conventional grating or prism-based instrument. 3 nm resolution isn't too bad, though. Could be good for evaluating aquarium/houseplant lighting and things like that. A Raman spectrometer is still a fairly exotic piece of hardware, requiring a laser, a notch filter for the laser's wavelength, and a very good conventional spectrophotometer to look for low-level sideban…
Raman is inherently difficult as it's so weak compared to normal scattering, so careful optimization of SNR is required. Another DIY Raman setup (on a breadboard so expect few kg): https://www.thepulsar.be/article/openraman-starter-edition/
That's a great site. I like how he describes experiments, techniques, and components that didn't work out, along with the ones that did.
Re: Caterpillar offers phone with built-in FLIR camera
#303We just finished a project where we spec'd catphones for a remote rugged data collection system.
The Cat42 is based on a mediatek chipset and gave us "meh" performance. BT/BLE was underwhelming compared to other phones. I'd recommend something like an Cat53 or 62 with Qualcomm guts instead.
Re: Caterpillar offers phone with built-in FLIR camera
#304Earlier quoted context omitted.
That's 3000 mAh @1.5V vs. 3200mAh @...3.7V? That would give those alkaline AAs half of the energy density of a lithium one. And, that's single-use, which I'm not a fan of, because all the energy embodied in a heavy metal cylinder goes to waste.
The phone battery is bigger. For perspective, an 18650 battery is substantially bigger than a AA, but the best they can do is ~3500mAh. Iirc AA lithium batteries are barely more dense than alkaline or nickel, and are awkwardly high voltage so require a buck corcuit, further harming performance.
Lithium chemistry in a AA form factor, with integrated downconversion and even charging port and circuitry in each individual battery, are cheaply available on Amazon, eBay, newegg etc. Depending on how much you want to spend, they range from no-name companies lying about huge capacities, to real brands advertising (unfortunately in mWh!) genuinely useful capacities, and they are CHEAP. They handily beat Ni-mh batteries in pretty much every way; capacity, self discharge, useful voltage until they die (this actually has a downside in that device battery indicators can't tell that the batteries are running low), cycle lifetime, no annoying management like having to be careful when and how you charge your batteries etc.
Re: Caterpillar offers phone with built-in FLIR camera
#305The lack of a replacable battery is infuriating because it's planned obselescence of a FLIR device. I got one of the first CAT s60 phones when they came out and tolerated all the android spyware on it because I really liked having a properly ruggedized phone. Got about 4 years out of it. The flir camera I would say I used most often at night for finding my dogs poop to pick up on neighbours lawns in the dark, but I u…
I'm sort of reminded of how cellphone cameras became used for selfies.
I wonder what other use cases previously "serious" technology will be used for.
I remember someone had a magnet of some sort embedded in their finger and could detect current fluctuations in underground electrical systems underneath a city sidewalk.
Re: Caterpillar offers phone with built-in FLIR camera
#306Earlier quoted context omitted.
I love stories about smiting wasps
I dislike wasps - BUT the good thing if you find a nest, is the knowledge that they will never return to a nest the following year - so the next actually becomes something that will help prevent future wasp infestations. When we bought our last house I changed a light fitting and live wasps poured out - I was freaked out, and put the fitting straight back. A few days later I went into the attic to put some boxes up t…
I've found that a wasp nest is still a hint that wasps will make nests nearby.
I had a shed (and a car) that had empty nests and then got nests nearby later.
Re: Caterpillar offers phone with built-in FLIR camera
#307Earlier quoted context omitted.
I love stories about smiting wasps
Fun fact: in most of Germany this would have been a crime with a penalty of up to tens of thousands in EUR depending on the exact species.
in comparison, when I bought a live-catch mousetrap recently, the guy at the store said it was illegal to release the mouse in the county. (implying you should buy the catch-and-kill trap variety)
Re: Caterpillar offers phone with built-in FLIR camera
#308The lack of a replacable battery is infuriating because it's planned obselescence of a FLIR device. I got one of the first CAT s60 phones when they came out and tolerated all the android spyware on it because I really liked having a properly ruggedized phone. Got about 4 years out of it. The flir camera I would say I used most often at night for finding my dogs poop to pick up on neighbours lawns in the dark, but I u…
I'm actually considering buying a IR camera for testing insulation (I have a contractor working in my apartment and due to various instance of clear fraud from him I have no confidence or trust in him anymore). Would a HTI HT-102 be enough or is it better to get a better sensor?
I remember a few years back you could buy the cheapest FLIR camera and upgrade it to the expensive model with a firmware hack.
Re: Caterpillar offers phone with built-in FLIR camera
#309Earlier quoted context omitted.
> Spring 2022 That was last week. (Seasons are a lousy way of describing times for anything other than local, geographically-anchored content. They’re only meaningful in a comparatively narrow band, falling apart if you head much towards the poles or equator—the four seasons model is useless in tropical areas especially—and inverting if you head to the other side of the equator.)
Indeed. Our friends in the USA often assume the people they are talking to are only in the USA!
Nonsense, plenty of places in the US completely lack spring and fall as reality, including where I grew up.
What you should have said is that many in the USA often assume the people they are talking to experienced a life identical to theirs
Re: Caterpillar offers phone with built-in FLIR camera
#310$650 160x120 9Hz thermal imager why bother when Chinese are manufacturing ~$200 _25hz_ 256×192 standard USB3 microbolometers? Look up INFIRAY P2 Pro/T2S+, SNDWAY SW-8256 etc mikeselectricstuff: Infiray P2 Pro smartphone thermal camera review & teardown https://www.youtube.com/watch?v=YMQeXq1ujn0 STS Telecom: Infiray T2S+ Thermal Camera Review https://www.youtube.com/watch?v=qt1JBA4W6n8 The 25hz part is important beca…
Does importing an ITAR restricted device cause legal issues?