I really doubt the E4 is 'measuring' the available current capability of the charging source. That would be a neat trick...
Typically (and very common with smart phones, e.g. Samsung S4) is that there are 'tricks' that are used to 'guess' the current ability of the source.
One is obviously with a real USB device, the target will request that the host provides a certain current (up to 500mA for USB2) and the host then informs the target if that is possible. Part of the USB enumeration process.
The common Apple ipod technique to determine the type of charger is to look for certain voltages (pullup/pull down resistors in the charger) on the D+/D-. The Samsung S4 also looks for a USB cable that has the shield connected end to end for the ground path connection. My S4 can charge up to 1900mA with a) the correct charger and b) the correct cable. If I switch to a normal USB cable it drops to around 1100mA. Change the charger (or use a PC) and it drops to just under 500mA. There's a free app that provides this info for the S4 in realtime.
cheers,
george.
I did make a statement about not exceeding 400mA during charge, and the battery doesn't get warm, WRONG!, but IF the temp is monitored VERY carefully (and they do have a thermistor in the battery), then fast charging CAN be done as there is a little heat when using the wall wart at over 1 amp.
Is it possible to make 60 fps instead 9
I did make a statement about not exceeding 400mA during charge, and the battery doesn't get warm, WRONG!, but IF the temp is monitored VERY carefully (and they do have a thermistor in the battery), then fast charging CAN be done as there is a little heat when using the wall wart at over 1 amp.If it's a 2800mAh cell 1A is only 0.36C, manufacturers usually recommend ~0.5C (1.4A in your case) as a "standard charge" and most can take a 1C "fast charge". A standard 18650 charger should be able to charge it easily.
FLIR ATS recently purchased a unique blackbody that can calibrate thermal cameras at temperatures as low as -80° C
create a panorama image with exiftool, imagemagick, MS ICE and php
Measurement | |
Object temperature range | –20°C to +250°C (–4°F to +482°F) |
Accuracy | ±2°C (±3.6°F) or ±2% of reading, for ambient temperature 10°C to 35°C (+50°F to 95°F) and object temperature above +0°C (+32°F) |
Some people may already know this but it was new for me and it surprised me a little bit, so I wanted to post it here.
Today I took a look at the datasheet for the E4 and it says as follows.
I have no idea how you 'tweak' the calibration tables but someone on here may be able to shed some light on the matter.
It works for .rsc files just fine. Traditional mistakes are either CRC wrong, or wrong file location. You probably know this, but just in case ... for .rsc files you have to use crc32 (not crc01 as for .cfg files).
Also for lazy people like me ... you can use the rdump command to save parts of the resource tree. See post about that not too long ago.
I used trial and error and watched the curve change.
I used an IR thermometer to plot the difference between it an the E4 in an excel sheet. Then I used this forumula:
http://u88.n24.queensu.ca/exiftool/forum/index.php/topic,4898.msg23972.html#msg23972
to calculate raw pixel values from E4 temperature values. From those pixel values ...
$ convert.exe 1.tiff -compress none 1.pgm
//open 1.pgm as text file
P2
160 120
65535
12894 12933 12933 12932 12983 12955 12919 12951 13023 13072 13130 13115 13143 || 13 values
13190 13372 13460 13484 13417 13374 13295 13211 13181 13101 13064 13030 13057
12996 12957 12953 12970 12970 12943 12959 12949 12956 12937 12950 12910 12916
12972 12996 13013 13084 13193 13251 13226 13109 13223 13280 13205 13132 13082
$ convert.exe 1.tiff -crop 1x1+39+0 -colorspace gray -format "%[mean]" info:
12972
$ convert.exe 1.tiff -crop 1x1+39+0 -colorspace gray -format "%[fx:mean*65535]" info:
12972
convert.exe 1.tiff -crop 1x1+0+0 -format "%[fx:round(65535*u.r)]" info:
12894
convert.exe 1.tiff -crop 1x1+13+0 -format "%[fx:round(65535*u.r)]" info:
13190
convert.exe 1.tiff -crop 1x1+26+0 -format "%[fx:round(65535*u.r)]" info:
12996
convert.exe 1.tiff -crop 1x1+39+0 -format "%[fx:round(65535*u.r)]" info:
12972