628 results about "Environmental tests" patented technology

One aspect of the present invention is a system of fabricating a barrier wall between the testing and tester volumes of an environmental test chamber. This aspect may use a plurality of pallets adapted to receive a device under test and a testing apparatus, a framework adapted to receive a plurality of pallets, and a plurality of insulation bricks associated with the plurality of pallets. The insulation bricks may be adapted such that they can cooperate to form an insulating barrier between the device under test and the testing apparatus.

An environmental test chamber provides a fast cool down to a temperature of about -125° F. and a fast heat up of an element under test.

The invention discloses an automatic driving test method and system based on mixed reality. The method comprises the following steps: a virtual test vehicle transmits test data in a virtual environment to a vehicle terminal of a real test vehicle through a cloud server, so that the real test vehicle merges the virtual environment test data with the real environment data, and selects a driving planaccording to the merged data; the real test vehicle synchronously uploads the real-time data of a vehicle sensor to the cloud server of a control center, a road surface sensor of a test field synchronously uploads the real-time data of a road surface to the cloud server of the control center, the cloud server sends the received data to a control center calculation platform, and the control centercalculation platform updates the virtual environment according to the data provided by the cloud server and adjusts the driving speed and the driving route of the virtual test vehicle; and the control center calculation platform saves the driving parameters of the real test vehicle under the influence of the virtual test environment.

A method for testing integrated circuit devices and loading such devices into a test board for further testing and an apparatus therefor is disclosed. The method allows for selection between two modes of operation. In a first mode, the integrated circuit devices are subjected to an electrical test before being placed into the test board for further testing. In a second mode, the integrated circuit devices are tested after being placed in the test board. The apparatus allows for the selection between the first mode and the second mode. In either mode, information about the tested devices and the sockets in the test board is used to load the test boards intelligently. Intelligent loading means that devices under test (DUTs) are not placed in bad sockets and devices that do test bad are removed from the test board, with an option of replacing the failed DUT with another DUT before subsequent environmental testing of the DUTs in the test board is carried out.

A humidity control apparatus and methods for use with, e.g., an environmental test chamber. In one embodiment, the apparatus comprises a system having a test chamber, a water tank, motive source for a gaseous humidity carrier, and temperature controllers for the tank and chamber. The carrier gas (e.g., air) is diffused through the water tank, thereby saturating the gas to a prescribed humidity level. This saturated gas is then passed into the chamber, and the environment within the chamber (i.e., humidity and temperature) controlled by the controller(s) so as to maintain the desired humidity level. The apparatus disclosed has the primary advantage of reducing or even substantially eliminating condensation within the test chamber when humidity levels are increased.

The invention provides an environmental test chamber and a method for obtaining testing environment by using same. The environmental test chamber comprises an inner chamber, an outer chamber and an air treatment system; the inner chamber is nested inside the outer chamber; the air treatment system is selectively connected with one of the inner chamber and the outer chamber; when the air treatment system is selected to be connected with the inner chamber, an air inlet of the air treatment system is connected with an air outlet of the inner chamber, and an air outlet of the air treatment system is connected with an air inlet of the inner chamber; when the air treatment system is selected to be connected with the outer chamber, the air inlet of the air treatment system is connected with the air outlet of the outer chamber, and the air outlet of the air treatment system is connected with the air inlet of the outer chamber; and the inner chamber comprises a pollution source generating device and a sampling port. The environmental test chamber can well imitate polluted indoor environment and can conduct purification property test on air purifying equipment under uniform test conditions, thus providing conditions for effectively evaluating the purification effects of the air purifying products on pollutants.

An environmental test chamber fast cool down system. The environmental test chamber fast cool down system, comprises: an environmental test chamber evaporator, a cascade condenser coupled to the environmental test chamber evaporator, a sub-cooled primary stage loop coupled to the cascade condenser, a sub-cooled secondary stage loop coupled to the cascade condenser, and a thermal storage unit coupled to the sub-cooled primary stage loop and to the sub-cooled secondary stage loop.

The invention discloses a high-temperature variability temperature and humidity environmental test control method and a device. In the method, a high-power electric heating group is utilized in a test box to realize the process of temperature rise, liquid nitrogen is infused by a liquid nitrogen device to realize the process of temperature reduction, a steam generating device is used for realizing the process of wetting, and the liquid nitrogen device is used for infusing the liquid nitrogen to realize the process of dehumidification. The device comprises the test box, and a temperature and humidity control system, wherein the temperature and humidity control system consists of a programmable logic controller (PLC), a temperature sensor, a humidity sensor, the high-power electric heating group, the liquid nitrogen device, the steam generating device and a fan. The method and the device can well realize decoupling control between the temperature and the humidity in the test environment under a large temperature variability condition, and can meet the requirements of the temperature and humidity control system of a reliability enhancing test device.

The invention relates to a nano gold biological composite probe, a detection method and application thereof. The detection method is characterized in that: the method comprises the following steps: firstly marking a bead through a monoclonal antibody of a protein to be tested; marking the polyclonal antibody of the protein to be tested on nano gold while and simultaneously marking a DNA probe with a biotin label; carrying out a biotin-streptavidin reaction on the DNA probe on the nano gold to make a lanthanide bonded with colloidal gold to construct the nano gold biological composite probe; mixing the bead of marked monoclonal antibody of the protein to be tested, the nano gold biological composite probe and a protein sample to be tested, carrying out the incubation on the mixture for a certain time at 37 DEG C; cleaning away the nano gold probe which does not react; adding a reinforcing liquid; and determining the fluorescence intensity so as to realize the aim of carrying out the quantitative determination on the protein to be tested. The method obviously improves the detection sensitivity of biomolecules, and is used for detecting a plurality of kinds of biomolecules synchronously. The method is widely applied in the fields of clinical diagnosis, antigen, antibody and nucleic acid detection, health quarantine, environmental tests, and the like.

The invention discloses an environmental test chamber for monitoring purification effect of air purifying products, which comprises a sealed box body, a sample introducing/sampling system, a temperature/humidity control system, a light source control system, an air channel internal circulation and air flow rate control system, an air exchange system and a control panel; in the environmental test chamber of the invention. an environment compounding cavity, independent of the external environment, is formed by the sealed box body, and environmental parameters in the environmental test chamber can be regulated and controlled by the sample introducing/sampling system, the temperature/humidity control system, the light source control system, the air channel internal circulation and air flow rate control system and the air exchange system so as to simulate different environmental conditions. The environmental test chamber of the invention has the advantages of providing a test environment with good stability and uniformity and comprehensively simulating the actual working environment of air purification, so that the environmental test chamber can be used for monitoring the purification effect of air purifying products and is also applicable for monitoring the purification effect of nanometer purifying products based on photocatalysis.

The invention relates to a small-sized environmental test chamber for pollutant release researches, which comprises a chamber body, an air generation system, a temperature-humidity control system, a sampling system and an air purifying device. By utilizing the small-sized environmental test chamber for simulating to approach real space, the temperature, the humidity and the air interchange ratio inside the chamber body can be controlled according to experimental conditions with low cost and simple operation. Meanwhile, the chamber body is provided with the purifying device, which can purify air samples at an air inlet and an air outlet so as to improve experimental conditions, be beneficial to acquiring real and reliable test data and avoid polluting indoor air.

In a single-use handheld diagnostic test device and an associated system and method, a biological and/or environmental test sample is received and reacted with reagents. The test device tests a single sample and includes a sensor to detect test data. The test device mates with, and transmits the test data to, an electronic device. A processor of the electronic device applies algorithms to the test data to generate highly sensitive and accurate quantitative test results. A presentation element of the electronic device presents the test results to a user. The test device is adapted for disposal, or for sterilization and re-use, after the electronic device receives the test data. The electronic device may be, for example, a mobile communications device, a personal digital assistant, a laptop computer, a navigation device, a digital audio player, a camera, or a gaming device.

The invention relates to a device for detecting residual stress close to surfaces of metal materials. The device stimulates a critical-refraction longitudinal wave and calculates a stress value according to an acoustic elasticity theory. According to the invention, by reducing contact area between a wedge and a part to be measured, the affect of plate surface distortion to a measurement result can be effectively eliminated; the affect caused by temperature difference can be eliminated by temperature compensation; and therefore, the system is adaptable to tests in more terrible field environments. The system is higher in integration degree, small and exquisite in appearance and convenient to carry.

A system using image processing technique to test the optical environment of building features that all the optical information in the environment is taken by camera and then input to cmputer, where each pixel on computer image is used as a test point to find the relation between its gray level and RGB value and the brightness and colourity of object point. The analyzed result is stored. Its test software is also disclosed.

The invention belongs to the technical field of mechanical environmental test, particularly relates to a triaxial mechanical decoupling device and a vibration testing system, and provides a device for connecting a triaxial simultaneous excitation work bench and a testing system. The triaxial mechanical decoupling device is characterized by comprising a work bench (1) and spherical hydrostatic bearings (4), the work bench (1) is in the shape of a metal plate, two mutually perpendicular mounting faces which are perpendicular to the upper end face and the lower end face of the work bench are arranged on the lateral side of the work bench (1), the spherical hydrostatic bearings (4) are respectively mounted on the lower end face (3) of the work bench, an X-directional side (7) of the work bench and a Y-directional side (2) of the work bench, and the other side of each spherical hydrostatic bearing (4) is connected with a vibration generator. Triaxial composite vibration testing of a workpiece can be achieved by using the corresponding triaxial work bench and the spherical hydrostatic bearings. By means of the triaxial mechanical decoupling device, the workbench can move only in the Z-direction, the X-direction or the Y-direction, so that triaxial translation of the work bench is realized.

The invention discloses a method for measuring volatile substance release in an interior wall coating, which comprises the following steps of: brushing the coating on two surfaces of a smooth inert substrate material twice according to the explanation of the using amount of the interior wall coating, immediately placing the material in an environmental test chamber with adjustable temperature, humidity and ventilation frequency, periodically extracting an air sample in the environmental test chamber according to the release rule of a volatile harmful substance, tracing and monitoring the release concentration of the volatile harmful substance in the sample, and making a release concentration-time curve to determine the release peak concentration and release steady-state concentration of the volatile harmful substance in the sample. The release concentration of a volatile organic compound (VOC) is detected by using gas chromatography, and the release concentration of formaldehyde is detected according to a phenol reagent method.

The invention relates to an environment testing device. The environment testing device comprises an environment testing system, a constant-temperature constant-humidity air treatment system, an air purifying system, a signal processing system and a display device, wherein the environment testing system is used for testing a harmful substance; the constant-temperature constant-humidity air treatment system is used for controlling the internal temperature and humidity of the environment testing system; the air purifying system is used for conveying clean air to the environment testing system; the signal processing system is used for processing temperature and humidity signals which are detected by the constant-temperature constant-humidity air treatment system; the display device is used for displaying signals which are transmitted by the signal processing system; the air purifying system is connected with the environment testing system through an air inlet of a testing outer chamber; the constant-temperature constant-humidity air treatment system transmits a detected analog data signal in the environment testing system to the signal processing system; the signal processing system converts the analog data signal into a digital signal; and the display device displays the digital signal. By adoption of the environment testing device, the temperature and humidity of the testing outer chamber and a testing inner chamber in the environment testing system can be accurately controlled, a real indoor environment is effectively simulated, the release rate and release characteristic of a pollutant are tested, test data are obtained, and a test model is established.

The invention relates to a method of detecting memory ability of a memory; the memory comprises a read-only region; the method comprises the following steps of: calculating read-only data needing to be written into the read-only region by using a checking algorithm, and obtaining a first checking value; writing the read-only data into the read-only region; placing the memory in a simulation environment where data easily loses; reading out the read-only data stored in the read-only region; and calculating the readout read-only data by using the checking algorithm, obtaining a second checking value and judging the memory ability of the memory to be qualified when the first checking value and the second checking value are equal. The technical scheme of the method can be used for judging whether the data memory ability of the read-only region of the memory can undergo environmental test.