Gospel of fishing enthusiasts - magnetoresistive sensor

Float is the main indicator during the fishing process and is an essential tool for fishing. With the development of social life, fishing has gradually evolved into a daily leisure activity. At the same time, the pursuit of fishing gear has become a hobby. Electronic floatation is based on traditional floats, with power and light-emitting devices added internally. Not only can fishing at night, but also the enjoyability of the float. In order to make the electronic float more convenient, the magnetoresistive sensor can be used as a power switch to control the lighting function of the float.

A magnetoresistive sensor is a device that can sensitively sense the change of the magnetic field and output the value of the electrical signal corresponding to the varying magnetic field. It can be used to detect changes in the magnetic field caused by the surrounding environment or ferromagnetic substances. Here, the realization of the magnetoresistive sensor switching function is mainly to utilize the ferromagnetism of the float box or the bait tray, or to add a small magnet block on one of the two to enhance the magnetic property. When the electronic float is used to traverse the float box or the small magnetic block area on the bait tray, the magnetic field of the magnetoresistive sensor in the float is significantly enlarged by the applied magnetic field, thereby generating a corresponding electric signal amount. . Then, when the electronic control unit in the float receives this signal, the power supply circuit is turned on or off to cut off the power supply line to the light emitting device, and the electronic float control is extinguished.

Honeywell SM353LT

The Nanopower series of nano-sensitivity sensor ICs (ICs) offer ultra-high sensitivity and are suitable for applications with large gaps, weak magnetic fields and low power requirements. At the same time, the Nanopower series (Naan series) magnetoresistive sensors sense the south or north magnetic field parallel to the direction of the sensor, eliminating the need for additional magnetic poles, simplifying the installation process and potentially reducing costs. With a very low average current consumption and a push-pull output that eliminates the need for pull-up resistors, the sensors also operate at voltages as low as 1.65V, significantly improving energy efficiency, making them ideal for battery-powered systems and applications.

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