Suggest a sensor for the following variables?

[mhnassif]

Homework Statement

Suggest a sensor with a signal conditioning can be used for measuring each of the following physical variables "heat, electrical current, angular displacement, pressure and heart beats"?

Homework Equations

The Attempt at a Solution

Heat: sensor: thermometer or thermistor
signal conditioning: voltage divider

electric current: ??

angular displacement: ?

pressure: sensor: RTD
signal conditioning: wheatstone bridge

I need some guidance? please tell the sensor for each of these physical variables also which are the suitable signal conditioning and why if possible?!

 

[KataKoniK]

For measuring electrical current, a Hall effect sensor or a shunt resistor can be used. The signal conditioning for the Hall effect sensor would be an amplifier to amplify the voltage output, while for the shunt resistor, a current-to-voltage converter would be needed.

For angular displacement, an encoder or a potentiometer can be used as the sensor. The signal conditioning would involve converting the analog signal from the sensor into a digital signal using an analog-to-digital converter.

For measuring heart beats, a photoplethysmograph (PPG) sensor can be used. The signal conditioning would involve amplifying the PPG signal and filtering out any noise.

Overall, the choice of sensor and signal conditioning depends on factors such as the range and accuracy of measurement required, the environment in which the measurement is being taken, and the cost of the equipment. It is important to carefully consider these factors when selecting the appropriate sensor and signal conditioning for a particular physical variable.