Nikos Japan developed a composite magnetic wire ultra-small magnetic sensor

Nikko, Japan has recently introduced an ultra-small pulse-emitting electromagnetic sensor called the "Pulse Palm Sensor," which measures just 1.2 mm in length. This groundbreaking device uses a composite magnetic wire to detect changes in external magnetic fields and generate voltage pulses. The company already offers similar sensors with composite magnetic wires of 12 mm or longer, but this new version represents a significant leap in miniaturization. The reduction in size is remarkable—its composite magnetic wire is now just 1.2 mm long, making it one of the smallest magnetic sensors available on the market. The sensor produces an output voltage of at least 20 mV and generates a pulse lasting approximately 20 microseconds. Once mass-produced, it is expected to be as small as a 1.6 x 0.8 mm chip component, making it ideal for integration into compact electronic devices. What makes this sensor unique is its ability to operate without an external power source. It relies on the large Barkhausen effect, a phenomenon where the internal magnetic domains of the material suddenly reverse when exposed to a magnetic field. This effect is more pronounced in specially designed composite magnetic wires made from an iron-cobalt-vanadium alloy. These wires are manufactured with a diameter of 0.3 mm or less, and their internal magnetic properties are precisely controlled during production. When the magnetic domains inside the wire reverse, they induce a voltage pulse in a coil wrapped around the wire’s outer surface. This process allows the sensor to generate electrical signals without requiring any external power, making it highly energy-efficient and suitable for a wide range of applications, including wearable technology, medical devices, and smart sensors.

Spiral Chute Separator

Spiral chute is a device that combines the characteristics of spiral concentrator, spiral chute, shaker, and centrifugal concentrator, making it the best equipment for mining and beneficiation, especially for placer mining on seashores, riversides, sand beaches, and streams. ideal.

This equipment is suitable for sorting iron ore, ilmenite, chromite, pyrite, zircon, rutile, monazite, phosphobitite, tungsten ore, tin ore, tantalum ore with a particle size of 0.3--0.02 mm. Ores, niobium ores and other non-ferrous metals, rare metals and non-metallic minerals with different specific gravity. This equipment has the advantages of stable sorting process, easy control, wide range of allowable change of ore concentration, high enrichment ratio and high recovery rate.

structure:
The spiral chute is composed of an ore feeder, a cross (tripod), a feed chute, a spiral chute, an intercepting chute, an accumulating bucket, and a chute pillar.
How to use

Stand up the spiral chute, calibrate the vertical line, fix it in a suitable position with an iron frame or wood, send the ore to the top two feeding ports of the spiral by the sand pump, add supplementary water, adjust the concentration of the ore paddle, The ore paddle naturally swirls from the height to the bottom, and an inertial centrifugal force is generated in the rotating inclined plane flow rate. The ore is separated from the sand by the gravity and centrifugal force of the swirling flow due to the difference in the specific gravity, particle size, and shape of the ore. , the concentrate flows into the concentrate hopper and is connected out with pipes, the tailings flow into the tailings hopper is connected to the sand tank with pipes, and then drained away with a sand pump, completing the whole process of beneficiation.

Separating Spiral Chute Separator,mineral separator machine,placer mining equipment

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