First, the working principle of the shoulder device
The electromagnetic device is mainly composed of iron core (including fixed iron core and movable iron core), coil, vibrating spring leaf and magnetic head. When alternating current is applied to the coil on the fixed iron core, an alternating magnetic field is generated, and the magnetic head vibrates repeatedly under the action of magnetic field force and vibrating spring plate. The vibration frequency is generally 100Hz and the input power is10 ~15 w. The methods to change the vibration intensity are as follows: first, change the core gap or current intensity; Second, change the vibration frequency.
Second, the classification of shoulder instruments
1, depending on the equipment form
Divided into active devices and passive devices.
In general, all the electronic devices we see in the market are passive. Their advantage is that they can lie or sit comfortably as long as they are plugged in.
Active devices refer to devices that need manual active cooperation, such as combs and wooden devices. This requires people's actions to cooperate with them. Its advantage is that it can achieve the dual effect of sports, and it is also a good choice from a certain point of view.
2, according to the energy used by the equipment
Divided into energy dissipators and natural devices.
As mentioned above, most passive devices are energy-consuming devices, such as pillows, chairs and foot baths. This requires electricity to complete. Its advantages are convenient use. A natural device refers to an instrument that can be completed without consuming energy, such as the active device mentioned above. Such equipment is more green and environmentally friendly.
3. According to the energy emitted by the device
Divided into infrared devices, electromagnetic devices, vibrators, etc.
The electromagnetic device must be used clearly to avoid some harm to the body.
Third, the applicable crowd of the shoulder device.
Almost all adults have experienced low back pain and cervical pain, which is related to the changes in our living environment and working habits. It can inhibit and regulate the nervous system, relieve pain, relieve muscle spasm, improve blood circulation, promote peripheral inflammation and reduce nerve root extrusion.
2, suitable for people who work by hand for a long time. Such as drivers, long-term office workers, IT professionals, etc.
3, suitable for people with frequent soreness in waist, shoulders, neck and other related parts.
The above is the detailed information about the working principle and classification of the shoulder rest. I hope it will be helpful for you to buy the shoulder rest! The use of equipment is also very particular. Different people and people with different constitutions need to be very careful when using this equipment! Improper use can not only relieve fatigue, but also damage our health! For more details of decoration information, please continue to pay attention.