摘要:
The corrosion-resistant test device installed in a flow path of a system which needs a corrosion-resistant test, the corrosion-resistant test device including: a chamber to which a test liquid is supplied; a test piece mounting member for mounting a test piece rotatably and immovably in the chamber; a nozzle body having a reference surface opposed to a test surface of the test piece mounted on the test piece mounting member and connecting the chamber to the flow path; and means for moving the nozzle body with respect to the test surface, wherein the means for moving the nozzle body is configured to move the nozzle body toward the test surface of the test piece so as to allow the reference surface to come into contact with the test surface of the piece and to coordinate the test surface with the reference surface.
摘要:
An accelerated life testing device and method including an accelerated life testing method for a test piece within a test chamber, the method including: establishing a first atmosphere within the test chamber; changing the first atmosphere to a second atmosphere to form a deposition layer on the test piece; changing the second atmosphere to the first atmosphere to remove the deposition layer from the test piece; and repeating the changing the first atmosphere to the second atmosphere and the changing the second atmosphere to the first atmosphere to form an oxidation layer on the test piece.
摘要:
Provided is a weathering test instrument that includes: a light source section including a plurality of solid-state light-emitting elements, in which the solid-state light-emitting elements are different in kind from one another, and are configured to emit light beams having respective wavelength regions that are different from one another; a light receptor configured to receive the light beams radiated from the light source section individually for the respective wavelength regions; and a controller configured to control radiant intensities of the respective solid-state light-emitting elements individually, based on received light amounts for the respective wavelength regions derived from the light receptor, and thereby control irradiance at a sample surface for each of the wavelength regions to allow an accelerated test of a sample to be performed.
摘要:
A radio-frequency transparent window having internal conduits for the passage of cooling fluid is configured for simulating a highly uniform thermal environment for testing a device intended for use in space. The device to be tested is placed within a chamber in which a vacuum condition is maintained by a radio-frequency transparent pressure window under a pressure seal. Within the chamber, the thermal window is positioned adjacent, but not in contact with, the pressure window. A radio frequency signal is capable of passing directly through both the thermal window and the pressure window to permit communication with the device being tested within the housing. The thermal window is not in contact with the device so there in no conduction of heat from the device. Radiant heat transfer may occur from the device to the thermal window.
摘要:
A thermal analysis apparatus and method, including a sample space with a sample carrier, and heating devices, and an inert gas. Flow devices generate an inert gas flow to the sample carrier. Getter devices and/or oxygen traps disposed in the inert gas flow remove residual oxygen.
摘要:
A controlling section 41 receives determined temperature and humidity values, set temperature and humidity values, a heating electric power value, and a humidifying electric power value from a body controller 30. A comparison and determination section 46 compares the heating electric power value and the humidifying electric power value with respective predetermined reference electric power values, and when at least one of the heating electric power value or the humidifying electric power value is less than a corresponding one of the reference electric power values, the comparison and determination section 46 outputs an anomaly signal indicating that the cooling capacity of a refrigeration apparatus 22 has been reduced.
摘要:
An environmental chamber system and a method for testing a device under test (DUT) include an environmental chamber in which the DUT can be tested. A temperature sensor senses temperature of the DUT, the temperature sensor generating a signal indicative of temperature of the DUT. A controller receives at least one input signal related to at least one of temperature and humidity in the chamber and the signal indicative of temperature of the DUT and provides at least one control signal for adjusting at least one of temperature and humidity in the chamber, such that the temperature of the DUT is not below a dew point of an environment in the chamber in a region of the chamber near the DUT, such that condensation in the environment in the chamber in the region near the DUT does not occur.
摘要:
The described invention relates to a method for determining corrosion in wet gas pipelines comprising: a) using a portion of the liquid phase from a wet gas pipeline; b) placing said portion in a high pressure, high temperature autoclave to prepare a saturated vapor phase; c) transferring the saturated vapor to a corrosion test unit, said unit having a specimen holder section having external, temperature adjustable means, and specimens being arranged in one or more positions within the specimen holder; d) chilling said specimen holder section so as to cause condensation onto said corrosion testing specimens; and, e) calculating a value selected from the group consisting of corrosions rate, pitting of the specimen, weight loss of the specimen, and any combination thereof. The invention process can be practiced in a separate laboratory apparatus designed to accomplish the above method, or in a similar online apparatus set up in a semi-batch mode or continuous mode.
摘要:
In certain embodiments, a method for cooling includes providing a controller in communication with an auxiliary cooling unit and a primary refrigeration unit. A first chamber temperature measurement associated with an environmental test chamber is received, and the heat load associated with a target temperature is determined. Based on the first chamber temperature measurement and the heat load, it is determined that the auxiliary cooling unit can sustain the target temperature. In response to the determination, the controller is used to transmit a signal to power on the auxiliary cooling unit and a signal to time out the primary refrigeration unit.
摘要:
An environmental testing device includes a humidity control module, a temperature control module; and an air circulation module. The air circulation module includes an enclosure and a fan received in the enclosure. Two pairs of airflow openings are defined in the enclosure and form different airflow passages that allow air to flow along different directions in the environmental testing device.