Techniques for preventing contamination of an electronic component via gas flow are described. According to some aspects, an electronic component module is configured to provide gas flow past and away from an electronic component such that thermal and material exchange is limited between the electronic component module and a coupled system. In some embodiments, the coupled system may be a portion of an additive fabrication device. As a result, a reduced number of contaminants may adhere to the electronic component, extending its lifespan and reducing maintenance.

A working machine, movable on a substrate, comprises a sensor arrangement, wherein the sensor arrangement comprises: at least one sensor housing (24) with a sensor accommodation space (26) open via a detecting aperture (30), at least one sensor (28) arranged in the sensor accommodation space (26) of the at least one sensor housing (24), at least one air-supply arrangement (32) for generating an air flow (L) flowing through the sensor accommodation space (26) in the at least one sensor housing (24).

An apparatus for measuring a temperature of an assembly that is internal to a process chamber. The apparatus may include a light pipe positioned between a lamp radiation filtering window and the assembly, the light pipe has a first end with a bevel configured to redirect infrared radiation emitted from the assembly through the light pipe and has a second end distal to the first end, an optical assembly configured to collimate, filter, and focus infrared radiation from the second end of the light pipe, an optical detector configured to receive an output from the optical assembly and generate at least one signal representative of the infrared radiation, a temperature circuit that transforms the at least one signal into a temperature value, and a controller that is configured to receive the temperature value and to make adjustments to other process parameters of process chamber based on the temperature value.

A microbolometer for measuring thermal radiation comprises an electrical circuit on a perforated plastic substrate. The electrical circuit comprises at least one thermistor having a temperature dependent electric resistance, wherein the thermistor is arranged to receive the thermal radiation for changing its temperature depending on a flux of the received thermal radiation. The electrical circuit is configured to measure the electric resistance of the thermistor for calculating the thermal radiation. The microbolometer is configured to cause a gas flow through the perforations for improving thermal characteristics.

An apparatus for measuring temperature of turbine blades, including: a radiation collection device, a data processing module; a master control unit (MCU); a calibration module; and a motion servo. The radiation collection device includes a scan reflector, a collimator lens, a first dichroic mirror, a first focus lens, a visible and near-infrared (VNIR) detector, a second dichroic mirror, a second focus lens, a short-wave infrared (SWIR) detector, a third focus lens, and a medium-wave infrared (MWIR) detector. The calibration module includes a calibration reflection mirror and a blackbody furnace. The scan reflector, the collimator lens, the first dichroic mirror, the second dichroic mirror, the third focus lens, and the MWIR detector are disposed successively along a first optical axis; the first dichroic mirror, the first focus lens, and the VNIR detector are disposed successively along a second optical axis that is perpendicular to the first optical axis.

A measuring probe head having a housing, which defines a receiving space and at least one coolant fluid supply channel fluidically connected thereto, and at least one sensor which is received, or is capable of being received, in the receiving space, wherein at least one partial region of the housing enclosing the receiving space has a porosity which defines a plurality of coolant fluid passage openings.

Disclosed is a pyranometer with a housing, a sensor in the housing, an inner window and an outer dome-shaped window both overlying the sensor. An air inlet duct and an air outlet duct extend in the housing and end in a space confined by the outer window for passing air through the space, from the inlet duct to the outlet duct. The housing is substantially closed such that no outside air flows are allowed into the housing and includes a ventilator, the inlet duct being in fluid communication with a high pressure side of the ventilator, the outlet duct being in fluid communication with a low pressure side of the ventilator. The air blown into the space below the outer window is heated by the ventilator power and optionally by and added electrical heater.

Disclosed is a sensor module. The sensor module may be an infrared sensor module for sensing temperature of food being cooked. The sensor module may be implemented or integrated into a closed cooking environment, such as an oven, or in an open cooking environment such as a range. The sensor module includes an air chamber unit to generate an air curtain over the front and back surfaces of a glass cover protecting the sensor. The air curtain prevents condensation on the cover and to maintain it cool. The air curtain improves accuracy of temperature sensed during cooking.

The invention concerns a method for feeding an optical cored wire into a molten metal bath and an immersion system and an immersion nozzle to carry out the method. The optical cored wire (6) is decoiled, a feeding and straightening device (4) with a plurality of rollers (20, 21) conducts feeding of the optical cored wire (6) in a feeding direction towards the metal bath (11) as well as a first straightening of the optical cored wire (6), and subsequently a separated further plurality of non-motor driven nozzle straighteners (13) arranged between the feeding and straightening device (4) and the metal bath (11) conducts a second straightening of the optical cored wire (6). Very high precision of temperature measurement can thereby be achieved.

A device for detecting at least one thermographic image including a thermal camera sensitive to infrared radiation for acquiring the thermographic image; a protective case, inside which the thermal camera is inserted, having a window through which the thermal camera is able to acquire the thermographic image; a screen, positioned outside the protective case and movable between a first operating position at which it is superposed on the window to protect it from environmental disturbances and a second operating position wherein it is shifted from the window, allowing the thermal camera to acquire the thermographic image; a pneumatic system for supplying air inside the protective case having an inlet outside the protective case; a computerized command and control unit; the pneumatic system includes means for adjusting and distributing the air operating inside the protective case and in communication with the external inlet controlled by the computerized command and control unit.