Infrared multi-point light curtain detection output

The basic principles of multi-point light curtain detection measuring light screen is composed of a plurality of points in a straight line side by side with the linear array of photoelectric sensors, each measuring light curtain is a light-emitting device emits light directed to the receiver, the receiver receives a signal; a receiver There are two accepted the received signal mode (scan mode) 1, parallel scanning, which is the first light-emitting point emits light directed to the receiver receiving a first light spot, the light-emitting device of the second spot, emit light directed to the receiver receives the second spot, the third spot light emitter, emits light directed to the receiver receives the third spot, and so on, send, receive point corresponding to the light receiver; 2, cross Scan Mode, which is the first spot light emitter, emits light directed to the receiver first spot and the second spot to receive the second spot light emitter, emits light directed to the second receiver and third receiving spot, and so on, the light emitted from the light emitter, corresponding to the receiver multi-point; multi-point detection using a light curtain, measuring the dimension (height measurement, measure the width, measure the length, We can do light curtain detection height 3500mm, detection length 0-10000mm, but still need to measuring light curtain detection height, depending on the distance between the optical axis, the axis pitch smaller screens height can be higher, testing the length of it longer) 2, empty detection (object in the middle of the light curtain, if some parts of the object can not stop emitting light emitted, that the receiver will receive the corresponding light rays by receiving determine how many holes there are much, then alarm , give a signal; 3, parts count; 4, classification detection (by detecting objects of different heights, according to a standard set value category) 5 position tracking; when the object to be detected by the light curtain, which will be blocked spot and what points does not block, the contour information of the object to provide automation equipment to control the appropriate location. etc .... curtain application output signal analog output (4-20mA or 1-10VDC output or output 1-5VDC ), RS485 / 232 communication output; switch signal output (NPN / PNP) is multi-point measurement we detect light curtains manufacturers, there is a need to learn more about can inquire and ask for product information.