Fluke SL935 heated resistance standard prototype
Published: 28 April 2017 Restoration and benchmarks of unique Fluke SL935 Resistance Standard Prototype.
Evaluation of modern pressure sensors with digital interface
Published: 10 April 2017 Test of signal/noise and stability performance of All Sensors DLHR and Honeywell RSC low pressure sensors.
Study of temperature coefficient on 260 precision resistors
Published: 09 January 2017 Measurement and comparison of various precision resistors stability and temperature coefficient
Tweaks and mods for HP 3457A 6.5-digit DMM
Published: 31 December 2016 Various modifications and circuit improvements of HP 3457A 6½-digit system DMM
HP/Agilent/Keysight 3458A 8.5-digit DMM modifications and tweaks
Tale 1 : Little jumper, or sharks in voltage references world
Published: 12 October 2016 Custom precision voltage reference build for hobbyist use. Engineering fairy-tale.
Ultra-quiet LDO module design, based on Linear LT3042
Published: 31 August 2016 Design and evaluation of ultra-low linear regulator modules, using Linear LT3042 in DFN package.
Ratiometric resistance measurements
International SI volt transfer experiment
Published: 27 May 2016 Voltage transfer experiment, using LTZ1000A-module for stable +7 VDC transfer.
Repair and use of old 19" TFT LCD monitor
xDevs.com development mini-modules
DIY Calibration resistance box build
DIY PCI expander board for IRAM DRAM-based drives
Published: 17 March 2016 Quick and dirty DIY expander for PCI slots (power only) for Gigabyte IRAM PCI SSDs.
Design of low-noise power supply for DIY precision standard
Testing of Fluke 720A KVD resistors
LCD font generation with font examples
Published: 15 January 2016 Devices and microcontroller projects which have LCD often require bitmap fonts. Guide about making and using LCD fonts.
Using Raspberry Pi SPI in Python
Published: 24 November 2015 Quick example of setting up Raspberry Pi to work with SPI ports, using Python
HP 3458A GPIB remote control guide
Published: 09 November 2015 Article covering remote operation and programming examples for 8.5-digit HP 3458A multimeter
xDevs.com Neutron : Automated power supply test unit
Published: 17 August 2015 Article covering design, assembly and usage of our ATE unit for PC ATX power supplies.
Experiment to reducing noise of Keithley 2002 DMM ADC
Published: 09 August 2015 Noise test with various modifications for zero reference opamp on Keithley 2002 ADC
DMM noise measurement test project
Published: 05 August 2015 Test project of bench DMM noise levels evaluation, using DCV ranges and various NPLC settings.
- Peek inside 53-year old voltage standard
- Nanovolt design challenge : Build your own open-source nanovolt-grade DCV meter/detector
- Guildline 6675A/6623 resistance bridge system and experiments
- HP/Agilent 66** series system DC power supplies
- Large DIY environmental chamber for DMM/T&M gear testing
- Tale 2 : eBay LTZ1000A reference modules and caveats