microK 250/500

The design brief for the microK 250/500 products was simple; to design a precision thermometer for secondary standards applications that is the best in its class. It had to offer the best performance and have the most comprehensive range of features. In delivering this design challenge, Metrosol worked with NPL (the National Physics Laboratory) to develop a completely new type of ADC in order to achieve linearity and noise performance that was previously unachievable without the use of the more complex AC bridge technology. We also introduced the radical substitution topology to the design of the microK to achieve a truly drift-less design as well as solid state signal switching in place of the far less reliable mechanical relays to improve reliability. Another innovation for this market was to use a touch screen user interface based on the Windows CE operating system making the microK the easiest instrument of its type to use.

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