Techniques for determining a thermal condition of a pipeline include identifying a pipeline that carries a fluid at a steady-state temperature, where the pipeline includes a tubular conduit that includes a bore that carries the fluid, and a layer of insulation installed over an exterior surface of the tubular conduit; changing the steady-state temperature of the fluid by applying a thermal contrast to the pipeline; based on changing the steady-state temperature, detecting a thermal gradient between the fluid carried in the bore and at least one of the tubular conduit or the layer of insulation at a particular location of the pipeline; and based on the detected thermal gradient, determining a presence of at least one of water or water vapor between the exterior surface of the tubular conduit and the layer of insulation at the particular location of the pipeline.

Techniques for determining a thermal condition of a pipeline include identifying a pipeline that carries a first fluid at a first temperature that includes a tubular conduit that includes a bore that carries the first fluid, and a layer of insulation installed over the tubular conduit; circulating a second fluid at a second temperature from a bypass conduit that is fluidly coupled to the tubular conduit through the layer of insulation into the bore; based on circulating the second fluid into the bore, detecting a thermal gradient between the first fluid carried in the bore and the tubular conduit or the layer of insulation at a particular location of the pipeline; and based on the detected thermal gradient, determining a presence of at least one of water or water vapor between the tubular conduit and the layer of insulation at the particular location of the pipeline.

The present invention makes it possible to provide temperature traceability for a test vehicle. A vehicle control device controls temperature information for a test vehicle and includes a peripheral temperature acquisition unit that acquires a peripheral temperature of a test vehicle from a first temperature sensor that is provided in a soak chamber where the test vehicle is stored or in a test chamber where the test vehicle is tested, a position information acquisition unit that acquires position information for the test vehicle, and a recording unit that associates the peripheral temperature of the test vehicle with the position information for that test vehicle and records the association.

An experimentation method for a type I stress intensity factor test considering frost heaving force periodic changes, steps being 1: preparing a specimen, waterjet cutting on the specimen to simulate a non-penetrating rock mass fracture; step 2: vacuum saturating the specimen; step 3: affixing a strain gauge in a non-elastic area at a tip of the specimen; step 4: placing the specimen into a rock mass (1) fracture frost heaving experiment box (5), pressurizing by a pressurizing apparatus (4) balloons on either side of the frost heaving experiment box (5), shutting a valve and removing a pipe, placing the frost heaving experiment box (5) holding the specimen into a water tank, allowing water to immerse the specimen; and step 5: placing the water tank and the frost heaving experiment box (5) holding the specimen together into a high-low temperature alternating experiment box (7) to start a freeze-thaw cycle experiment.

A method for assessing a thermal path associated with an integrated circuit includes identifying a heat application mode based on a design type of the integrated circuit. The method also includes measuring a first temperature of at least one thermal sensing device associated with the integrated circuit. The method also includes applying heat to at least a portion of the integrated circuit according to the heat application mode. The method also includes measuring a second temperature of the at least one thermal sensing device. The method also includes determining a difference between the first temperature and the second temperature. The method also includes determining whether a thermal path between the integrated circuit and an associated substrate is sufficient based on a comparison of the difference between the first temperature and the second temperature with a predetermined difference between an initial temperature and a subsequent temperature of the at least one thermal sensing device.

A detection device for a turbine blade of an aircraft engine includes a machine table, a fixing frame, a dip coating mechanism, and a detection mechanism. A sliding cavity is formed in an upper end of the machine table, a support plate is slidably arranged in the sliding cavity, a side end of the support plate is rotatably connected to a chuck, the fixing frame is in an inverted “U” shape and is fixed on the upper end of the machine table, and a mounting barrel is rotatably arranged on the fixing frame. The dip coating mechanism and the detection mechanism are arranged on the machine table, such that wall-hanging sediments in an air film hole and a cooling channel will be exposed to a first photosensitive camera and a second photosensitive camera through fluorescent liquid, thus completing wall hanging and blockage detection of the blade synchronously.

Methods, systems, and devices for electronic rack level testing and/or verification are disclosed. The disclosed systems may provide for automated testing of electronic racks that may include fluid recirculation systems. To provide for automated testing, a test unit of a system may automatically and without manual intervention circulate coolant to an electronic rack under test. The testing unit may also pressurize the electronic rack. The testing unit may further depressurize the electronic rack to provide for efficient delivering, deployment commissioning, and reduce the likelihood of coolant circulation issues occurring when initially deployed. A testing server of the system may also provide for load testing and thermal cycling of the electronic rack in an automated manner.

A high-temperature biaxial strength tester for a CMC turbine vane includes a test stand, a thermal insulation box, a vane fixture, a biaxial loading device, thermocouples, a multi-channel thermometer, quartz lamps, a digital image correlation (DIC) system, and a cooling circulation system. The biaxial loading device includes two loading mechanisms arranged at 90° to each other. Each of the two loading mechanisms includes an electric cylinder and a ceramic push rod. One end of the ceramic push rod is connected to the electric cylinder, and the other end of the ceramic push rod extends into the thermal insulation box to contact an outer platform of the CMC turbine vane. The electric cylinder is provided with a load-displacement sensor. The thermocouples are arranged on the thermal insulation box. The quartz lamps are arranged inside the thermal insulation box. The multi-channel thermometer is connected to the thermocouples.

An extinction ratio testing system (10) includes a microcontroller (102), an extinction ratio tester (104), and a thermostat (106). The microcontroller (102) controls the thermostat (106) to maintain an optical transceiver module (20) at a predetermined high temperature, and then the microcontroller (102) controls the extinction ratio tester (104) to test an extinction ratio of the optical transceiver module (20). If the extinction ratio is lower than a standard extinction ratio, the microcontroller (102) controls the optical transceiver module (20) to increase a laser operating current (212) of the optical transceiver module (20) to increase the extinction ratio.

The present invention discloses a thermal fatigue crack generator for a large pipe. According to the present invention, the thermal fatigue crack generator for a large pipe precisely manages and controls the heating and cooling conditions for the large size test pipes having a diameter of 250 to 610 mm to significantly improve the reliability of the accuracy and a reproducibility of the thermal fatigue cycle so that a useful advantage is expected to ensure the reliability and the effectiveness of the skill verification of the non-destructive testing.