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Product Categories |
Inductive Proximity Barrel Round Switches |
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Inductive Proximity Rectangular Switches |
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Inductive Proximity Special Type Switches |
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Magnetic Proximity Switches |
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Magnetic Door
Contacts for Security
Alarm Systems |
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Photoelectric Proximity
Switches |
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Float Switches |
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Capacitive Proximity
Switches |
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Switch Mode Power Supply
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Brake Interlock System
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Flow Switch |
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Power Pack |
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LDR Type Proximity Switch |
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Lubricant Timer
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Panic Switch |
| Intrinsically Safe Proximity Switch |
Product Application |
| Our Products find varied applications in various industries such as - |
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Textiles |
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Food Processing |
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Automobile |
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Machine Tool |
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Entertainment |
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Advertising |
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Cement Industry |
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Packaging Industry |
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Inductive Proximity Switch (2 Wire DC) |  | |
| Working Principle
An Inductive Alternative r.t. field is developed at the front of the sensing surface of the proximity switch. This field is generated by the resonant circuit coil of the oscillator. Energy is absorbed when a metal piece is brought into the r.f. field near the sensing surface, causing oscillation to stop. Hence the demodulated voltage feeding the trigger disappears. For Dc Switches The trigger operates rapidly when oscillation stops and this trigger switches the output transistor, which can be either NPN or PNP to drive an electronic circuit or relay. For AC Switches A Thyristor is triggered when oscillation stops due to the presence of metal. This thyristor is connected in series with a bridge and this series combination is connected to the AC load. Advantages Of Proximity Switches These switches can be used where extreme conditions exist, e.g. 1 With lubricants and cutting oils 2 Under vibration 3 Environments where water and steam are present 4 Dusty environments, etc. Applications Inductive proXimity switches or sensors are primarily used when the object to be sensed is metallic, that is inductive proximity switches are used to detect the position of metals (Any type). Some automobile industries and many more.
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