For induction to take place, the two bodies must be placed nearer to each other. We have already discussed that current in any conductor flows due to the movement of charge carriers. Suppose we have a negatively charged body, so the movement of the charges inside the body generates electric current. We know that when current flows through a conductor then the magnetic field is produced across it.
And according to Faraday when an uncharged body is placed in a region where the magnetic field is present then the electric field gets generated inside it. More simply we can say charges of opposite polarity present in the charged body get induced to the uncharged body. Thus the generated electric field in the second body causes flow of current through it in the opposite direction.
It is noteworthy here that the magnetic field shows variation according to the change in the electric field of initially charged conductor and so the induced electric field in the other body. Thus in this way, we can say that current flowing to one conductor gets induced in the other conductor placed near to it.
To further explain the difference between inductive and capacitive sensors, here is more information about inductive sensors. As mentioned earlier, an inductive sensor, also known as a proximity switch, is a simple, reliable and inexpensive solution to determine a position or end position. Therefore there are countless application examples for this, such as:. A short M18 sensor is often used for this, with a switching distance of 8 mm. In applications with a high er hygiene standards, inductive proximity switches ensure the transition between production and cleaning processes.
For example, the sensor switches when supplying cleaning agents or ingredients. By detecting the distinction between these two materials, the ingredients or cleaning agents are not supplied by the machine. The sensor ensures that the valve remains open or closed at the right time. Placing objects or packaging on a conveyor belt is a simple process. However, great precision is necessary.
Reliable detection and consistent alignment can be achieved through inductive sensors. The result is less waste and system interruptions. With a detection range of 2 mm and a fixed cable connection, it is a reliable solution for detections in pick-and-place applications. Different parts form the drive of a transport system. This includes gears. Due to the consistent and synchronized detection of the teeth, the drive of the gears can blend more easily. The gears are detected flawlessly by this inductive sensor, so that its rotation can be monitored.
Challenging applications can be a burden for sensors. Inductive sensors are often made entirely of metal in these types of applications. These are corrosion-resistant and insusceptible to many aggressive industrial chemicals. Capacitive proximity switches are used to determine and monitor the level of a liquid in a tank or basin. Within a switching range of 8 mm. Another application is to report whether a bottle on a conveyor belt is filled or not with, for example, soft drinks.
By means of this determination, partially filled bottles can be separated from the properly filled bottles. The goal is to increase the quality of the end product. This is a capacitive sensor with a detection range of 12 mm. Capacitive proximity sensors can be used to detect and count non-metallic objects such as glass, paper, cardboard, plastic or wood. This is possible because the sensor can detect more than one type of material unlike the inductive proximity switch.
Think of the detection of plastic casings over a conveyor belt. As a result, both smaller and larger packages are detected. The table below explains the differences and similarities between inductive and capacitive sensors:.
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Charging station is developed for this purpose. Energy is transmitted through inductive coupling to electrical device. This energy is used to o charge batteries.
Inductive chargers are used with induction coil to create an alternating EM field from charging base. The portable device such as cars or trucks use second induction coil to receive the EM field. These EM fields are converted back into electric current in order to charge the battery of EV.
The figure depicts the process. From above discussion and using various factors, let us summarize difference between Conductive charging and Inductive charging. Conductive charging vs Inductive charging Difference between Conductive charging and Inductive charging This page compares Conductive charging vs Inductive charging and mentions difference between Conductive charging and Inductive charging.
Conductive Charging System Conductive charging uses direct contact between EV connector and charge inlet.
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