The significance of the two-step design of the DR exposure button

The DR exposure button is also called the exposure switch of the X-ray machine. It is generally designed as a two-speed switch. Press the button to turn on, and release it to turn off. Two-speed design
The meaning is that when the button is pressed to the first gear, the first gear is turned on, and the second gear is turned on when the button is fully pressed, and the first gear is still connected at this time.
state. The first gear is to warm up the tube and prepare for exposure switch. The second stop is for X-ray exposure.
The service life of the DR exposure button is also very long, the service life of the electrical components can reach 300,000 times, and the service life of the mechanical parts 1,000,000 times.