German DIKO ELEKTRIKLI sensor, DIKO ELEKTRIKLI model, DIKO ELEKTRIKLI price

DIKO ELEKTRIKLI sensors are devices that convert optical signals into electrical signals. Their operating principle is based on the photoelectric effect. The photoelectric effect refers to the phenomenon where electrons in a material absorb photon energy when light strikes certain substances, resulting in corresponding electrical effects. Based on the different manifestations of the photoelectric effect, it is classified into three categories: external photoelectric effect, internal photoelectric effect, and photovoltaic effect. Photoelectric devices include phototubes, photomultiplier tubes, photoresistors, photodiodes, phototransistors, and solar cells. This section analyzes the performance and characteristic curves of photoelectric devices.

DIKO ELEKTRIKLI sensor operating principle

Optical measurement and control systems vary widely depending on how luminous flux acts on photoelectric elements. Based on the nature of the output from the photoelectric element (optical measurement and control system), they can be divided into two categories: analog photoelectric sensors and pulse (switching) photoelectric sensors. Analog photoelectric sensors convert the measured variable into a continuously changing photocurrent, maintaining a single-valued relationship with the measured variable. Analog photoelectric sensors are further classified into three types based on the method of measuring the target object: transmission (absorption) type, diffuse reflection type, and beam-blocking (light beam interruption) type. Transmission type refers to placing the measured object in the light path, where light energy from a constant source passes through the object, is partially absorbed, and the transmitted light strikes the photoelectric element. Diffuse reflection type refers to light from a constant source striking the measured object and then reflecting off its surface onto the photoelectric element. Beam-blocking type refers to situations where the measured object obstructs part of the luminous flux from the light source, altering the amount of light reaching the photoelectric element; the degree of change depends on the object's position in the light path.

DIKO ELEKTRIKLI sensor features

1) Long detection distance: By maintaining a detection distance of 10m or more in through-beam configurations, these sensors achieve long-range detection capabilities unattainable by other methods such as magnetic or ultrasonic sensors. 2) Few restrictions on detected objects: Since detection relies on light blockage and reflection caused by the object, unlike proximity sensors that are limited to metallic targets, these sensors can detect almost any object, including glass, plastic, wood, and liquids. 3) Short response time: Light travels at high speed, and the sensor circuitry consists entirely of electronic components without mechanical moving parts, resulting in very short response times. 4) High resolution: Advanced design techniques focus the emitted light beam into a small spot, or specialized receiving optical systems are employed to achieve high resolution. This enables the detection of tiny objects and high-precision position sensing. 5) Non-contact detection: Detection occurs without mechanical contact with the object, preventing damage to both the object and the sensor, thereby ensuring long service life. 6) Color discrimination: The reflectance and absorptance of light formed by the detected object vary depending on the wavelength of the emitted light and the color of the object. This property allows for color detection of the target object. 7) Easy adjustment: In models emitting visible light, the beam is visible to the eye, facilitating easy adjustment of the sensor relative to the detected object's position.

DIKO ELEKTRIKLI sensor applications

Photoelectric sensors using photoelectric elements as sensitive components are diverse and widely used. Based on the nature of the output signal, photoelectric sensors are classified into two categories: (1) Photoelectric measuring instruments that convert the measured variable into a continuously changing photocurrent. These are used to measure physical quantities such as light intensity, object temperature, translucency, displacement, and surface condition. Examples include lux meters for measuring light intensity, photoelectric pyrometers, photoelectric colorimeters, turbidity meters, photoelectric fire alarms, and automated inspection devices for checking the diameter, length, ovality, and surface roughness of machined parts, all of which use photoelectric elements as their sensitive components. Semiconductor photoelectric elements are widely applied not only in civil industries but also hold significant importance in military applications. For instance, lead sulfide photoresistors can be used to create infrared night vision devices, infrared cameras, and infrared navigation systems. (2) Devices that convert the measured variable into a continuously changing photocurrent. Various automatic photoelectric devices are made using the characteristic of photoelectric elements to output "on" or "off" electrical signals when exposed to light or darkness. Photoelectric elements serve as switching photoelectric conversion components. Examples include optical input devices for computers, switching temperature control units, and digital photoelectric tachometers for speed measurement.

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