LM42 Proximity Switch

Model explanation of proximity switch

Working principle inductive proximity switch

Inductive proximity switch is composed of three parts: oscillator, switch circuit and magnified output circuit. The oscillator will generate an alternating electric field. When hemetal object approaches this electric field and reaches the induction distance, whirlpool will generate in metal object, resulting in attenuation of vibrati on and then stop. The changeof vibration and stop of oscillator is treated by begid stage magnified circuit and convertedto switching sign, triggering driving con-contact detection

Application illustration of proximity switch

Main features

• Compact volume
• High precision of repeated location
• Diversified exterior structures
• Good performance of anti-interference
• Many output forms
• High on-off frequency
• Wide voltage range
• Dust proof, vibtation proof, water proof and oil proof
• With short-circuit protection and inverted connecting protection
• Long service life