Description: Temperature sensor PT100, which is a relatively good stability and linearity are platinum wire RTD sensors can work in-200 ℃ to 650 ℃ range. The circuit to choose their work in the range of-19 ℃ to 500 ℃ The whole circuit is divided into two parts, one sensor preamplifier circuit, first single-chip A/D conversion and display, control, software and some other non-linear correction.
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PT100 applicaton.doc
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