Hello Everyone,
Let's talk about precision resistors! This is an open invitation for members to contribute to a list of resistor sources and provide a discussion about their own experiences with resistors.
.................. My Advantest R6581T is being sent to the TransCat calibration centre in Texas, so it might be a while before I can contribute to that venture...
So far, I have collected a list of my own (MegaOhms to TeraOhms range) and maybe we can combine our knowledge to benefit the community.
All those clues makes it clear to me, that this conversation will not deliver anything useful regarding
modern products and solutions.
Few years ago
VISHAY accepted to collaborate with me about the promotion (due my Blog) of their latest
Hermetically sealed Vishay Foil Resistors the ones dedicated for calibration.
Because of that received
YES from VISHAY, I did challenged
HIOKI Japan, about me getting a sample of their finest resistor meter, which out to be aware that VISHAY was all ready a HIOKI customer, and that the specific instrument (of my choice as sample), it was in use all ready from Vishay at Israel, in their production lines as
THE inspecting device of new resistors production.
According the measurements of the HIOKI (self calibrated meter), the new products are labeled and shipped to the customer.
The measurement of the HIOKI resistance meter, does not change, no matter of the room temperature that could be 12C ~ 35C, when the DUT is one of those Hermetically sealed Vishay Foil Resistors.
For three years I was trying to document changes of temperature coefficient of my resistance samples, and this was not possible because resistance does not change at within planet temperature range.
An benchtop DMM will never be equal to dedicated and modern resistance meter.
In conclusion, two brands hold in their hands the present and future of our precision resistors.
Best third or fourth or fifth measurement device, this is unimportant when the target this is precision resistors
production.