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Sensor cable - accessories have many applications in different fields, ranging from medical to industrial. In the medical field, they are commonly used to measure vital signs, such as blood pressure, pulse oximetry, and ECG. In the industrial field, they are used to detect pressure, temperature, voltage, and more. However, no matter which field we look at, they all share one thing in common: working principle.

The working principle of a sensor cable - accessories is based on the basic laws of electricity. Current will always flow from a potential energy source to a direction of lower potential, as described by Ohm’s law. Depending on the required output, sensor cables - accessories use different types of sensors and resistors to measure the voltage, current, temperature, and other conditions. The measured values are then sent to the controller unit for further processing.

The most common types of sensor cables - accessories are the resistive-type, which use a resistive element to measure the current. The resistive element consists of two metallic plates, where the resistance is proportional to the voltage drop between them. The current is then detected by the controller unit using an inbuilt measuring device such as a millivoltmeter. Another type is the capacitive-type, which uses a capacitive component such as a condenser or diode to measure the current. The capacitor acts as a storage device for the current.

There are also other types of sensor cables - accessories, such as Hall effect sensors and inductive sensors. Hall effect sensors use magnetic fields to measure the current, while inductive sensors use induction coils to measure the voltage. In addition, strain gauges can be used to measure the amount of strain or pressure applied on a given surface. All of these work in their own way, depending on the type of signal or signal condition required.

Regardless of the type of sensor cable - accessories used, they all have one thing in common – their working principle. By understanding the principles of electrical engineering, one can easily determine the required output, select the appropriate type of energy source, and find the most suitable cable and accessories for any application.