3 results about "Garnet crystals" patented technology

This utility model discloses an online monitoring device for transformer winding temperature based on fiber optic temperature measurement, belonging to the field of temperature monitoring technology. It includes a temperature probe, a fiber optic transmission assembly, a control box, and a display panel. The temperature probe is composed of a quartz optical fiber coated with a high-temperature resistant polyimide coating. A europium-doped yttrium aluminum garnet crystal temperature sensor is fused to the end of the fiber. The temperature sensor is covered with an alumina ceramic protective layer. The temperature probe is embedded in the interlayer gap of the transformer winding conductors. The fiber optic transmission assembly uses a double-armored composite optical cable, with both ends connected via fiber optic connectors. The control box includes a metal heat sink, a detection circuit housed within the casing, and a microcontroller. The display panel is integrated onto the surface of the control box and electrically connected to the microcontroller. The display panel also includes a dual-color LED alarm light group and a miniature buzzer. This utility model can accurately and stably measure the temperature of transformer windings and achieve online monitoring.

The utility model relates to a film plating fixture technical field, especially a kind of chromium-doped yttrium aluminium garnet crystal's film plating fixture, including mounting seat;And, drive assembly, including screw rod, the inner tangent ring being set in the outer wall of screw rod and the moving block being set in the end surface of inner tangent ring, the outer wall both sides of screw rod are equipped with the thread of opposite rotation;And, clamping assembly, including the positioning plate being set in the outer side of moving block and the positioning part being set in the end surface of positioning plate, drive assembly further include the motor being set in the outer side of mounting seat, the outer wall of motor is fixedly connected with first mounting plate, first mounting plate is L type structure design, first mounting plate is installed in mounting seat end surface, the utility model is positioned to the yttrium aluminium garnet crystal by the replaceable clamping assembly, since yttrium aluminium garnet crystal has multiple shapes, utilize the clamping of replaceable clamping part can satisfy the clamping demand under different conditions, cooperate drive assembly can make the stable clamping of clamping assembly to crystal.

[Problem] To provide a technique for synthesizing a lithium complex metal oxide having a garnet crystal structure and high ionic conductivity even when fired at a low temperature of 700°C or lower. [Means for solving the problem] An amorphous complex metal oxide powder containing La and Zr is used as a precursor for producing a single-phase garnet-type lithium complex metal oxide, the amorphous complex metal oxide powder containing 40 mass% or more and 62 mass% or less of La, 8 mass% or more and 26 mass% or less of Zr, 1 mass% or more and 20 mass% or less of a metal element M capable of exhibiting any one of oxidation valences of 3 to 6 (preferably, one or two of Ta and Nb), a carbon content of 1.5 mass% or less, and the balance being oxygen and inevitable impurities.