Driving a LED at sub-nA currents, allows me to measure single photons, thereby proving that light acts like small energy bunches 👌🏼😎😎

See my previous video if you want to know more about the setup and the PMT (Photo Multiplier Tube)

#stem #physics #testandmeasurement #quantumphysics

Lucky me! 😃

Came across this beauty, mint condition, at a price which left little debate 🤌🏼🤩

I finally have a calibrated horn antenna 🥲

#rfengineering #hamradio #testandmeasurement #testgeartuesday

Built a test setup for my PMT tube, allowing me to bias an LED at really low currents, hopefully catching single photons, or at least a very low count 🙂

Photo Multipliers are insane devices! 🤷🏼‍♂️🤯

This video is meant to explain the setup, stay tuned for my next video where I do actual measurements 🙂🙂

#stem #physics #electronicsengineering #testandmeasurement #quantum

🚀⚡ The future of space launches is built on one rule: measure everything before you commit.
know more:https://zurl.co/3VELF

#Smidmart #Instrumentation #DigitalVoltmeter #Ammeter #IgnitionSystem #HealthMonitoring #TestAndMeasurement #AerospaceEngineering #GroundSupport

For an upcoming experiment, I need to know how accurate my #Keithley 2400 is at nA outputs (God I absolutely love that box… 🥰), but I also wanted to see how well my 6.5digit GDM-9061 multimeter tagged along..

Enter the HP 3458A… 💪🏼😎

Connected them all in series and although the set point on the 2400 is a bit off from reality, it’s own current measurement is bang on. At 20nA 🤯😃 And the 9061 multimeter was in agreement as well, even at such low currents.

Ready for next step, stay tuned 😎😎

#electronics #testandmeasurement #rfengineer #electronicsengineering

At the night of the legendary capacitor explosion we also hosted a BYOD Oscilloscope night, where ppl could bring their instruments and learn more about them, common pitfalls, how to do basic measurements, more advanced stuff, etc.

Surprisingly many electronics enthusiasts don’t have an oscilloscope, and even more surprising, many don’t really know how to use the instrument they have.

The evening opened many new doors to the participants - I think everyone were happy 😃

#hamradio #electronics #electronicsengineering #rfengineer #testandmeasurement

I noticed that I had a Pico Technologies PicoScope 2204A USB-based 2-channel 10 MHz oscilloscope with arbitrary waveform generator (AWG) that I bought back in 2021. I don't recall what I paid for it, but it now sells for $185 (with 2 probes as I got, or $149 without).

Installing the software on Linux Mint Debian Edition 6 (LMDE6) was easy and it works well on the couple of laptop computers I've tried it on, so this might turn into something that I often pack with one as basic lab equipment.

I was delighted to find that the software includes a spectrum analyzer function. (With the cheapest hardware, it tops out around 760 kHz, so it's not very useful, but easier to carry than my two HP units.) It also seems to have serial data decoding functions (which I haven't explored yet.)

Pico is based in the UK, but seems to ship from Tyler TX. (National Instruments, based in Austin TX, has long offered similar products built around its LabView software.)

https://www.picotech.com/

#TestEquipment #TestAndMeasurement

The Pico Technology TC-08 is dated, but it’s still going strong 👍🏼 With the optional terminal board, the thermocouple channels can be used to log either voltages or 4-20mA (industrial current loop).

I’m logging the discharge curve of a 9V Alkaline battery, using an OP-AMP as a voltage divider/buffer, as the terminal board is limited to +/-5V.

The software is really easy to use and is supported on several OS 😃

There are many voltage loggers out there, but if you already have a TC-08, the small terminal board is a really nice addition and an easy way to quickly log long-term measurements 🙂

#testandmeasurement #electronicsengineering #engineer #picotech #oicotechnology

The #Fnirsi battery tester has a calibration option, but how accurate is it out of the box?

Quite accurate, it would seem. Voltage measurement is precise into the mV range and my trusty old resistance standards are bang on 👌🏼😃

#electronicsengineering #testandmeasurement #electronicsengineer #battery #hamradio

Finally got the #fnirsi battery tester 🙂
It measures inner resistance and voltage.

You can see how the resistance increases when the battery is depleted, that’s textbook material 👌🏼🙂

#electronicsengineering #testandmeasurement #rfengineer #electronicsengineer #batterytechnology