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KickStarter: High Accuracy Programmable & Cute Resistance Substitution Box

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frankli:
Dear All,

Yesterday we launched a revolutionary product, New Generation Resistance Substitution Box, in Kickstarter:
https://www.kickstarter.com/projects/eastwoodtech/qr10-pocket-high-accuracy-programmable-resistance-box?ref=discovery&term=QR10

Please allow me to use this platform to recommend the product which can be potentially beneficial to some readers here.

Unlike it's conventional counterpart, QR10 replaced the rotary switches with an OLED, keypad and RF relays. It can be controlled by any free serial software via USB-COM port. Hence it's very suitable for applications like auto-test, auto-calibration and (RTD) sensor simulation.

Moreover, the accuracy can reach ±0.01% , ranges can cover 1 Ω - 8.4 MΩ and the price (Kickstarter special, 30% OFF) is only 10%~20% of its competitors. You can visit our website WWW.EASTWOOD.TECH to get QR10's datasheet and user manual.

Should you have any questions or wish to know more about the product, please feel free to ask here, Kickstarter, or email us via eastwood.tech@outlook.com. Your comments and feedback on the product are highly appreciated!

If you are a social media influencer and would like to give us a thorough technical product review, please contact us. :bullshit:

frankli:
More pics:





Comparison with similiar products:


aging tests:



frankli:
Dear All,

Yesterday we launched a new product, New Generation Resistance Substitution Box, in Kickstarter:
https://www.kickstarter.com/projects/eastwoodtech/qr10-pocket-high-accuracy-programmable-resistance-box?ref=discovery&term=QR10

Your comments and professional opinions are highly appreciated!

Unlike it's conventional counterpart, QR10 replaced the rotary switches with an OLED, keypad and RF relays. It can be controlled by any free serial software via USB-COM port. Hence it's very suitable for applications like auto-test, auto-calibration and (RTD) sensor simulation.

Moreover, the accuracy can reach ±0.01% , ranges can cover 1 Ω - 8.4 MΩ and the price (Kickstarter special, 30% OFF) is only 10%~20% of its competitors. You can visit our website WWW.EASTWOOD.TECH to get QR10's datasheet and user manual.

Should you have any questions or wish to know more about the product, please feel free to ask here, Kickstarter, or email us via eastwood.tech@outlook.com. Your comments and feedback on the product are highly appreciated!

If you are a social media influencer and would like to give us a thorough technical product review, please contact us.





tggzzz:
So, it is a number resistors in series between the two terminals, with a relay in parallel with a resistor to short the resistor.

Please explain in words of one syllable how this enables a residual resistance of 0ohms. Your analysis should include the diameter+lenght of the wire between the terminals and each resistor, and the contact resistance of the relay.

EEVblog:
That's a very cool form factor. But I suspect it's too cool for the automated production stuff you had in mind which would dictate say a small 1U rack compaitable type case.

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