Capacitive Proximity Sensor Advantages And Disadvantages

Advantages of capacitive sensor.

Capacitive proximity sensor advantages and disadvantages.

The capacitive proximity sensor consist a high frequency oscillator along with a sensing surface formed by two metal electrodes. Following are the advantages of capacitive sensor. Humidity sensing method advantages disadvantages. Advantages ultrasonic proximity sensors are not affected by atmospheric dust snow rain etc can work in adverse conditions sensing distance is more compared to inductive or capacitive proximity sensors disadvantages ultrasonic sensors has more difficulties reading reflections from soft curved thin or small objects.

Pressure independent it works when pressure is being applied it has limited long term stability. There are many types each suited to specific applications and environments. It has longer life. Advantages of inductive sensor.

Proximity sensor is a device that can detect the presence of an object near it without any physical contact. It can be used to detect non metallic targets. Machine tools to sense metal targets etc. Capacitive can withstand below temperature of 0 o c it does not require any maintenance for longer periods flexibility to use atm.

Capacitive proximity sensor diagram advantages disadvantages capacitive sensor. The major application of capacitive sensor is level sensing as mentioned above. Inductive sensor is used for wide variety of applications viz. It can detect through containers of certain types also.

Refer proximity sensor of inductive type for more information. Following are the advantages of inductive sensor. It is sensitive to dewing and certain aggresive substances. The elastic deflection of a membrane due to the applied force is detected by a capacitance variation.

Working principle of capacitive proximity sensor. A transducer that uses capacitance variation is known as capacitance sensors. Proximity sensors detect the presence or absence of objects using electromagnetic fields light and sound. When an object comes near the sensing surface it enters the electrostatic field of the electrodes and changes the capacitance of the oscillator.