Capacitive Proximity Sensor Advantages And Disadvantages

The elastic deflection of a membrane due to the applied force is detected by a capacitance variation.

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. Proximity sensor is a device that can detect the presence of an object near it without any physical contact. Following are the advantages of capacitive sensor. Proximity sensors detect the presence or absence of objects using electromagnetic fields light and sound.

Inductive sensor is used for wide variety of applications viz. A transducer that uses capacitance variation is known as capacitance sensors. Pressure independent it works when pressure is being applied it has limited long term stability. It has longer life.

Advantages of capacitive sensor. Capacitive can withstand below temperature of 0 o c it does not require any maintenance for longer periods flexibility to use atm. Humidity sensing method advantages disadvantages. There are many types each suited to specific applications and environments.

Refer proximity sensor of inductive type for more information. It can be used to detect non metallic targets. Advantages of inductive sensor. Capacitive proximity sensor diagram advantages disadvantages capacitive sensor.

Machine tools to sense metal targets etc. It can withstand harsh environmental conditions. When an object comes near the sensing surface it enters the electrostatic field of the electrodes and changes the capacitance of the oscillator. It is sensitive to dewing and certain aggresive substances.

The major application of capacitive sensor is level sensing as mentioned above. Refer capacitive sensor basics and working for more information. 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. It can detect through containers of certain types also.