A contactless type temperature detecting device includes a temperature detecting sensor, a separating plate, an airflow path forming member, an air blower and an air hole. The temperature detecting sensor has a temperature detecting surface facing a heated body. The separating plate is configured to separate a first space on a side of the temperature detecting surface of the temperature detecting sensor from a second space on an opposite side of the temperature detecting surface. The airflow path forming member is provided on a surface of the separating plate on either one side of the first space or the second space. The air blower is configured to simultaneously form air flow in the first space and the second space. The air hole is provided along an outer circumference of the temperature detecting sensor and configured to communicate the first space with the second space.

The invention relates to a probe housing for accommodating sensors, including a plurality of coolant conduits distributed in the circumferential direction; at least one flushing medium conduit; and a sensor lead-through hole. The sensor lead-through hole extends at least partially parallel to the at least one flushing medium conduit; and a sensor receptacle into which the sensor lead-through hole opens. The sensor receptacle has a measuring section opening, and the sensor receptacle has a flushing medium outlet conduit having a flushing medium outlet which is connected to the at least one flushing medium conduit, and the flushing medium outlet conduit has a tapering cross-section to form a nozzle shape.

Optical probes and methods for continuously measuring the temperature of molten metals in vessels are described. The optical probe may include a fiber surrounded by a protective structure that is mounted in a wall of a vessel. The protective structure may include a porous body for flowing gas through the optical probe assembly. A portion of the optical probe may be sacrificial and erode or break away during temperature measurements. Calibrations may be used to correct temperature measurements based on an amount of erosion or removal of the optical fiber.

A road finishing machine with a thermographic device releasably fixed to a portion of the machine for recording a georeferenced thermographic data record of at least one region of a pavement layer. The thermographic device includes a housing in which a detection unit for detecting a thermographic data record and a further detection unit for detecting a space-related data record for the thermographic data record are disposed.

A maintenance system for a flame detector in an enclosure for an industrial machine, such as turbomachine, is disclosed. The maintenance system may include a conduit having an inlet at an exterior of the enclosure and an outlet at an interior of the enclosure. The outlet is adjacent the flame detector. The maintenance system also includes a source of air and a valve fluidly coupling the inlet of the conduit and the source of air. The valve is configured to deliver a compressed air from the source of air through the outlet of the conduit onto a surface of the flame detector, thereby removing contaminants from the surface and/or cooling the surface. A controller can be provided to automatically operate the cleaning and cooling system when a fault signal is observed.

The present disclosure discloses a temperature measurement device for detecting the temperature of a processing element, wherein the top wall of the furnace has a furnace chamber top opening, comprising: a temperature detection component configured to detect the temperature of the processing element; a support shroud; and a sealing isolation device connected to the support shroud; wherein the temperature detection component is supported over the support shroud, the sealing isolation device configured to sealingly enclose the shroud cavity from above so that the temperature detection component can be isolated from gas within the furnace chamber. The temperature measurement device of the present disclosure can prevent environmental pollution caused by the outflow of high-temperature gas by providing a sealing isolation device, and better prevent the impact of high-temperature gas on the infrared camera, thereby providing better protection.

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 housing for internal components of an optical probe is provided. The housing includes a housing body including an outer surface and an inner surface opposite the outer surface. The housing body is elongated along a center longitudinal axis from a proximal end to a distal end. The inner surface defines and annularly surrounds a cavity that is open at the proximal end and closed at the distal end. The housing includes a purge channel that includes a gas inlet and a gas outlet. The purge channel extends axially relative to the center longitudinal axis from the gas inlet to the gas outlet. The purge channel is formed between the outer surface and the inner surface of the housing body. The gas outlet is located distally from the gas inlet and through the inner surface of the housing body. The gas outlet directs gas into the cavity toward the distal end.