Hi;
We need to install a sensor to see the running web (sometime brown web sometime white) of a corrugator machine whose max speed is 250M/min. When an A4 sized BLACK paper is detected on that running corrugated web, sensor should give a pulse to system. Goal is to detect the BLACK A4 Paper on running web. The min distance of sensor to web will be 400mm i.e. we can not move the sensor more down. System voltage is 24VDC.
Do you please guide me which kind/brand of sensor is the best to use for such application? The viscosity of ink on said A4 sized black paper is changed i.e. sometime pure black and sometime light.
We have tried regular defuse type sensor but sometime it works sometime not. We need 100% results.
We need to install a sensor to see the running web (sometime brown web sometime white) of a corrugator machine whose max speed is 250M/min. When an A4 sized BLACK paper is detected on that running corrugated web, sensor should give a pulse to system. Goal is to detect the BLACK A4 Paper on running web. The min distance of sensor to web will be 400mm i.e. we can not move the sensor more down. System voltage is 24VDC.
Do you please guide me which kind/brand of sensor is the best to use for such application? The viscosity of ink on said A4 sized black paper is changed i.e. sometime pure black and sometime light.
We have tried regular defuse type sensor but sometime it works sometime not. We need 100% results.