The present publication describes a heat-resistant optical layered structure, a manufacturing method for a layered structure, and the use of a layered structure as a detector, emitter, and reflecting surface. The layered structure comprises a reflecting layer, an optical structure on top of the reflecting layer, and preferably shielding layers for shielding the reflecting layer and the optical structure. According to the invention, the optical structure on top of the reflecting layer comprises at least one partially transparent layer, which is optically fitted at a distance to the reflecting layer.

A method, device and apparatus are provided for measuring the temperature of a melt, particularly of a molten metal, with an optical fiber, fed into the melt through a disposable guiding tube. The optical fiber and an immersion end of the tube are immersed into the melt and have feeding speeds which are independent from each other. An elastic plug is arranged within the tube or at an end of the tube opposite the immersion end. The optical fiber is fed through the elastic plug, and the elastic plug reduces a gap between the optical fiber and the tube, which has a larger inner diameter than the outer diameter of the optical fiber. The apparatus includes a fiber coil and a feeding mechanism for feeding the optical fiber and the tube, including at least two independent feeding motors, one for feeding the optical fiber and one for feeding the tube.

A temperature sensing device includes a probe unit on a first end and a sensor unit on a second end opposite the first end. The first end is introduced into an environment to be measured, such as an exhaust gas line from a combustion engine, and the second end is positioned in a region outside of the environment such that the sensor unit is at least partially insulated from a temperature of the environment. The probe unit, exposed to the temperature of the environment, achieves a temperature that corresponds to the temperature of the environment. The sensor unit is operable to sense the temperature of the probe unit and generate a corresponding electrical signal usable to determine a sensed temperature of the environment. The temperature of the environment can be determined on a cycle-by-cycle basis, and is usable for implementing advanced combustion strategies such as HCCI and SACI.

A protective device for an imager which is contained within a housing and in which the imager is aligned with an opening in the housing. The protective device includes a cover which overlies the housing opening and is manually detachably secured to the housing by three or more resilient clips. A plurality of openings are formed through the cover to enable operation of the imager.

The present invention relates to an arrangement (1) for measuring the temperature of a web. The arrangement (1) comprises a plurality of sensors (3) for contactless measuring of the temperature, an elongated housing (5) intended for extending essentially along a transverse direction (T) which is transverse to the direction of movement of a web. The sensors (3) are arranged in a chamber (6) within the housing (5) and spread along the front side (7a) of the housing (5). Each sensor (3) is connected to a data bus (9) for providing information of the measured temperature to other systems and/or apparatuses. The sensors (3) are attached to a support structure (19) having at least one rotatable shaft (23) in the interior of the housing (7), and wherein the shaft (23) is arranged to rotate the support structure (19) such that the sensors (3) are displaced to a calibration and/or protection position away from the openings (11) for calibration and/or protection of the sensors (3). The invention also relates to a method for measuring the temperature of a web, a computer program, a computer readable medium and a control unit.

Aspects and examples described herein provide a lightweight radiation shielding structure for infrared cameras. In one example, a top radiation shielding element and a bottom radiation shielding element are placed as close as possible to an infrared detector to minimize excess weight added to the infrared camera while providing optimal radiation shielding. Such aspects and examples provide important functionality for numerous weight-sensitive applications in high-radiation environments.

A device for measuring a temperature of a molten metal bath, comprising: an optical cored wire; a tube, wherein the optical cored wire is at least partly arranged in the tube, wherein the tube has an outer diameter in the range of 4 mm to 8 mm, and a wall-thickness in the range of 0.2 mm to 0.5 mm; and a plurality of separating elements comprising more than two separating elements arranged in the tube spaced apart from each other, and forming at least one compartment between two of the more than two separating elements.

The invention also relates to a system and method for measuring a temperature of a molten metal bath.

An electronic device includes an outer case, a circuit substrate, a thermopile sensor chip, a filter structure, and a waterproof structure. The outer case has an opening. The circuit substrate is disposed inside the outer case. The thermopile sensor chip is disposed on the circuit substrate. The filter structure is disposed above the thermopile sensor chip. The waterproof structure is surroundingly connected between the filter structure and the outer case, wherein the waterproof structure has a through hole for exposing the filter structure and communicated with the opening of the outer case.

The invention relates to a microsystem (1) comprising a substrate (12), a bottom electrode (3) arranged on the substrate (12), a ferroelectric layer (4) arranged on the bottom electrode (3), a top electrode (5) arranged on the ferroelectric layer (4) and an isolation layer (6) that is electrically isolating, that is arranged on the top electrode (5), that extends from the top electrode (5) to the substrate (12) so that the isolation layer (6) covers the bottom electrode (3), the ferroelectric layer (4) and the substrate (12) in a region around the complete circumference of the bottom electrode (3), and the isolation layer (6) has the shape of a ring that confines in its centre a through hole (11) that is arranged in the region of the top electrode (5).

The invention proposed the thermal imaging radar includes of main components: Assembly pedestal, Assembly rotary shaft, and Assembly housing. Electronic circuits, encoders, mechanisms, motor are optimized arranged and scientifically designed the layout space and the weight of the structure. This device is compact for camouflage purposes, easy to assemble or disassemble, and waterproof. The invention's products can be applied in automatic security station, produces 360-degree panoramic imaging of the continuously day and night for surveillance area, detects and tracks moving objects captured by the thermal sensor. Furthermore, The product is also applicable for monitoring the ambient temperature in large areas, localizing high-temperature areas to recognize and warn the possible explosions.