Frequently Asked Questions on Photoelectric Sensors – Begaff

Create Date: 2024-8-30 12:03:23|Source: P+F/Double Blessing

1. How to estimate the standard detector body of photoelectric sensors?

The thrift-beam type and the regressive reflection type are based on the diagonal length of the optical structure, and the scale of the opaque body with a large diameter is used as the standard object. In general, the through-beam type uses the diagonal length of the projector and receiver as the standard to detect the length of the object. The regressive reflection type uses the diagonal length of the reflector as the standard to detect the diameter of the object. Diffuse photoelectric sensors are based on the diameter of the projected beam of white paper as a standard detection object.

Frequently Asked Questions on Photoelectric Sensors – Begaff

Frequently Asked Questions on Photoelectric Sensors – Begaff

2. What is the frequency of the photoelectric sensor?

When converting the frequency of the photoelectric sensor, we need to find the information of the product and understand the response time of the product, as shown in the following figure: the response time of the PSC cross-beam 5m product is 2ms, and the 2ms represents 2ms for oscillation and reset, so the entire response time is 4ms. Then the frequency f=1/(2*echo time) is 250Hz

3. What kinds of light sources are there for photoelectric sensors?

The emitter of a photoelectric sensor usually uses the following light sources: Red LEDs – visible light, which can be easily adjusted. Infrared LEDs – high-energy invisible light. Red lasers – visible light, whose physical properties are an aspirational choice for small object detection and large-scale inspections. Lanbao photoelectric series sensors mainly use infrared LEDs as the light source.

4. What is the basic concept of photoelectric sensor?

Photoelectric sensors are a general term for sensors that use light to detect objects. A device that emits an optical signal from the transmitting part of the sensor and is reflected, isolated, and absorbed by the detected object, and then detected by the receiving part and converted into the corresponding electrical signal to achieve control. In general, photoelectric sensors are composed of three parts, which are divided into: transmitter, receiver and detection circuit.

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