German DIELL sensors, DIELL models, DIELL prices

DIELL sensors, also known as torque sensors, torsion sensors, torque transducers, or torque meters, are divided into two main categories: dynamic and static. Dynamic torque sensors are also referred to as torque sensors, torque-speed sensors, non-contact torque sensors, and rotary torque sensors. Torque sensors detect the twisting moment on various rotating or non-rotating mechanical components. They convert the physical changes in torsional force into precise electrical signals. Torque sensors can be used in the manufacture of viscometers and electric (pneumatic, hydraulic) torque wrenches, offering advantages such as high precision, fast frequency response, high reliability, and long service life.

DIELL sensor operating principle

Photoelectric sensors achieve control by converting changes in light intensity into changes in electrical signals. Generally, a photoelectric sensor consists of three parts: the transmitter, the receiver, and the detection circuit. The transmitter emits a beam of light toward the target. This light beam typically originates from a semiconductor source, such as a light-emitting diode (LED), laser diode, or infrared emitting diode. The beam is emitted continuously or with modulated pulse width. The receiver comprises photodiodes, phototransistors, or photocells. Optical components such as lenses and apertures are mounted in front of the receiver. Behind it is the detection circuit, which filters the valid signal and processes it. Additionally, structural components of photoelectric switches may include emitter plates and optical fibers.

DIELL sensor classification

1) Slot-type photoelectric sensor: Consists of a light emitter and a receiver mounted face-to-face on opposite sides of a slot. The emitter sends out infrared or visible light, which the receiver detects when unobstructed. When an object passes through the slot, the light is blocked, triggering the photoelectric switch to output a switching control signal that cuts off or connects the load current, thereby completing a control action. Due to structural constraints, the sensing distance of slot-type switches is typically only a few centimeters. 2) Through-beam photoelectric sensor: Separating the emitter and receiver increases the sensing distance. A through-beam photoelectric switch consists of one emitter and one receiver, commonly referred to as a through-beam photoelectric switch. Its sensing distance can reach several meters or even tens of meters. When using a through-beam photoelectric switch, the emitter and receiver are installed on opposite sides of the object's path. When the object passes through and blocks the light path, the receiver triggers and outputs a switching control signal. 3) Retro-reflective photoelectric switch: The emitter and receiver are housed in the same unit, with a reflector plate installed in front. It utilizes the principle of reflection for photoelectric control, known as a retro-reflective (or mirror-reflective) photoelectric switch. Under normal conditions, the light emitted by the emitter is reflected back by the reflector plate and received by the receiver. Once an object blocks the light path and the receiver no longer detects light, the photoelectric switch triggers and outputs a switching control signal. 4) Diffuse-reflective photoelectric switch: The sensing head of a diffuse-reflective photoelectric switch also contains an emitter and a receiver, but there is no reflector plate in front. Under normal conditions, the receiver does not detect the light emitted by the emitter. During detection, when an object passes through, it blocks the light and reflects part of it back to the receiver. The receiver then detects the light signal and outputs a switching signal.

DIELL sensor application cases

1) Photoelectric sensors in laser weapons: Since photoelectric sensors are highly sensitive to infrared radiation, visible light, or both, they are more likely to become targets of laser attacks. Furthermore, electronic systems and the sensors themselves are highly susceptible to interference from thermal noise and electromagnetic noise generated by lasers, preventing normal operation. Methods of laser weapon attacks on photoelectric sensors on the battlefield mainly include: using a laser beam of appropriate energy to "blind" the sensor, rendering it unable to detect or continue tracking already detected targets. Alternatively, if the sensor is guiding a weapon toward a target, blinding will cause it to lose the target. In summary, as sensors play an increasingly important role on the battlefield and are vulnerable to laser attacks, they have become the primary targets of low-energy laser weapons. 2) Photoelectric sensors in automatic meter reading systems: With the development of microelectronics, sensor technology, computer technology, and modern communications, photoelectric sensors can be used to develop automatic meter reading systems. The aluminum disk of an electricity meter rotates under the torque generated by eddy currents and magnetic fields. Using a photoelectric sensor converts the number of rotations of the aluminum disk into pulse counts. For example, by partially blackening a section of the rotating shiny aluminum disk and pairing it with a reflective photoelectric emitter-receiver pair, pulses are generated at the blackened section as the disk rotates. The rotation count is sampled and converted into corresponding pulse counts, then sent via an optocoupler isolation circuit to the T0 port of the CPU for counting processing. Using optocoupler isolators effectively prevents interference signals from entering the microcomputer. Combined with other transmission methods, this forms an automatic meter reading system. 3) Photoelectric sensors in monitoring smoke and dust pollution: A photoelectric sensor is a small electronic device that detects changes in received light intensity, achieving control functions by converting these light intensity changes into electrical signal changes. Due to characteristics such as non-contact operation, fast response, and reliable performance, photoelectric sensors are widely used in industrial automation devices and robotics. We can utilize the properties of photoelectric sensors to detect smoke and dust conditions; thus, the strength of the output signal from the photoelectric sensor reflects changes in flue gas turbidity. 4) Hygienic washdown-proof photoelectric sensors: Washdown-proof sensors provide extremely high reliability and ease of use while minimizing operating costs. Equipped with IO-Link interfaces and the proTect+ sealing concept, which significantly extends service life, these two new sensors are suitable for demanding applications and represent an ideal solution for the food and beverage industry.

Weidou Intelligent Technology specializes in selling German DIELL sensors, DIELL proximity sensors, DIELL distance sensors, DIELL vision sensors, DIELL displacement sensors, DIELL torque sensors, DIELL speed sensors, DIELL photoelectric sensors, DIELL position sensors, DIELL angle sensors, DIELL tactile sensors, DIELL temperature sensors, DIELL pressure sensors, DIELL flow sensors, DIELL level sensors, DIELL motion sensors, and DIELL process sensors. All products are original imports from Germany. Customers are welcome to inquire and place orders.