The Conditioning of Thermocouple Sensor Voltages

Consider the circuit below:

Thermocouple signal amplifying circuit
Figure 1(a) thermocouple signal amplifying circuit

From the figure above, the sensing junction and reference junction are connected in series. When the junctions are at the same temperature the voltage output from the junctions is zero … Read more

How Signal Processing Circuits are protected from high currents & voltages

Protection against high currents and voltages is a very important requirement for signal processing circuits. A high current can be protected against by the incorporation in the input line of a series resistor to limit the amount of current flowing … Read more