German THERMOGRAFIE sensor THERMOGRAFIE model THERMOGRAFIE price

THERMOGRAFIE 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, or 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. They offer advantages such as high precision, fast frequency response, good reliability, and long service life.

THERMOGRAFIE sensor principle

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

THERMOGRAFIE sensor classification

1) Slot-type photoelectric sensor: A slot-type photoelectric sensor is formed by mounting a light emitter and a receiver facing each other 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 and blocks the light, the photoelectric switch activates, outputting a switching control signal to cut off or connect the load current, thereby completing a control action. Due to structural limitations, the sensing distance of slot 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, often referred to simply as a through-beam switch. The sensing distance of through-beam switches can reach several meters or even tens of meters. When using a through-beam 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 activates 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. This setup uses the principle of reflection for photoelectric control and is called a retro-reflective (or mirror-reflective) photoelectric switch. Under normal conditions, the light emitted by the source 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 activates 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 source. During detection, when an object passes through, it blocks the light and reflects part of it back. The receiver then detects the light signal and outputs a switching signal.

THERMOGRAFIE sensor application cases

1) Photoelectric sensors applied 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, which can prevent normal operation. Laser weapons on the battlefield primarily attack photoelectric sensors in the following ways: Using a laser beam of appropriate energy to "blind" the sensor, preventing it from detecting or continuing to track already detected targets. Alternatively, if the sensor is guiding a weapon toward a target, blinding will cause it to lose the target. In summary, because 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 applied 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 number of rotations is sampled and converted into corresponding pulse counts, which are 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 applied 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 characteristics 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-resistant photoelectric sensors: Washdown-resistant 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 harsh application environments and represent an ideal solution for the food and beverage industry.

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