What are the differences between potentiometers and adjustable resistors?

industrial potentiometer in foreign countries, also known as adjustable resistance or variable resistors, adjustable resistors and potentiometers in the domestic distinction. From the working principle of the structure and adjustable resistance, potentiometers and adjustable resistors are basically similar, but not all the same, so they are similarities and differences between the potentiometer and adjustable resistors in the end what is the difference, we Mainly from the following points to view:
1, the handle: Potentiometer with a handle, and adjustable resistors do not handle.
2, the resistance distribution characteristics: the potentiometer output characteristics have a variety of function characteristics, different potentiometer resistor body distribution characteristics are not the same; and adjustable resistor resistance body distribution is the same.
3, joint number: potentiometer potentiometer with double, and adjustable resistance does not.
4, the volume: long life potentiometer volume, solid structure, long service life. The adjustable resistance of the small size, the service life should be shorter.
5, anti-jamming performance: potentiometer metal shell in the circuit ground (joystick connected with the shell), so adjust the potentiometer when the interference is relatively small, you can achieve the purpose of interference suppression; and adjustable resistance without ground pins, regulation will By the human body induction interference.
6, the installation location and frequency of use: potentiometer installed in the circuit board or chassis, no matter what kind of installation, his handle needs to extend out of the case, a convenient adjustment, the machine often adjust the use of potential ; And adjustable resistance mounted on the circuit board, the use of the process is usually not adjusted, only in the troubleshooting of resistance adjustment.
7, the service life: potentiometer solid structure, long service life. However, due to frequent use of potentiometers, coupled with its mechanical movement, so in the same machine often potentiometer in the adjustable resistance in front of damage; and adjustable resistance structure is simple, improper adjustment easily damaged, shorter life, but because of The use of low frequency, so he did not show the shortcomings of life shortcomings.