I will list some commonly used high resistance resistors in sensor circuits

The specific application of high resistance resistors in sensor circuits will vary depending on the type of sensor and the requirements of circuit design. Here are some commonly used high resistance resistors in sensor circuits and their related information:

1、 High resistance resistors in the circuit of thermal resistance sensors
PT100 Platinum Resistance: This is a commonly used thermal resistance sensor, whose resistance value changes with temperature. At 0 ° C, the resistance of PT100 is 100 Ω, and as the temperature increases, its resistance will increase uniformly. Although PT100 itself is not a high resistance resistor, in some circuit designs, it may be combined with other resistors to form a high resistance voltage divider or measurement circuit.
2、 High resistance resistors in other sensor circuits
High precision resistors: In precision sensor circuits, such as medical, measurement, telecommunications equipment, etc., high-precision and high stability high resistance resistors may be used. The resistance range of these resistors may be between several hundred kiloohms (k Ω) and several megaohms (M Ω) to ensure the accuracy and stability of the circuit.
Voltage divider resistor: In voltage divider circuits, high resistance resistors are commonly used to divide the power supply voltage into lower voltages for use by sensors or other circuit components. The resistance of this type of resistor is usually large to ensure stable and accurate voltage after voltage division.
Current limiting resistor: In sensor circuits, in order to protect the sensor from damage caused by excessive current, a high resistance resistor may be connected in series to limit the current. The resistance value of this resistor depends on the power supply voltage and the current required by the sensor.
3、 Precautions for selecting high resistance resistors
Resistance range: Select the appropriate resistance range according to the requirements of circuit design.
Accuracy and stability: For sensor circuits that require high precision, resistors with high precision and stability should be selected.
Power: Ensure that the power of the selected resistor can withstand the current and voltage in the circuit to avoid overheating or damage to the resistor.
Packaging and Size: Choose the appropriate resistor packaging and size based on the size and layout of the circuit board.
In summary, commonly used high resistance resistors in sensor circuits include PT100 platinum resistors (in specific combinations), high-precision resistors, voltage divider resistors, and current limiting resistors. When selecting these resistors, factors such as resistance range, accuracy and stability, power, packaging, and size need to be considered.