Many users have questions about the service life of the X-ray exposure handswitch during the process of consulting the handbrake. How long can the X-ray exposure handswitch last? Let’s take a look at the second-speed handswitch.
The use of the second-speed X-ray exposure handswitch is very simple: first-speed preparation, second-speed exposure.
Regardless of whether it is a previous industrial frequency camera or a modern high-frequency camera, the exposure button of any photograph has a two-layer structure, that is, the first layer is the exposure “preparation” button, and the second layer is the “exposure” button, just like the two layers of the camera. There is a clear interval between the gears, the first gear is fixed focus, and the second gear is the same as photography.
Press the first gear of the hand switch to rotate the anode target surface of the tube ball (about 1.2s to the rated speed – the national standard) and increase the temperature of the cathode filament (brighten, to ensure sufficient electron emission to reach the preset tube current; when When the speed of the anode target surface and the heating of the filament are sufficient, a green light will light up on the operation panel).
Press the second gear of the hand switch to immediately expose and emit rays (if the preparation light is not on at this time, it indicates that there is a problem with the anode target surface speed and the filament heating circuit, and an error code will be reported. Press or not press the second gear at this time. It doesn’t matter); if the handbrake is released during the exposure, it will cause the exposure to end prematurely (mAs is not enough), so it is required to hold down the handbrake until the exposure ends automatically.
In order to prevent unnecessary idling of the anode target surface and unnecessary brightening of the filament, modern generators wear out the bulb. When you press the first gear of the handswitch and the ready light is on, if you do not press the second gear for a long time (generally more than 5-7s), the generator will report an error code (there will be an error code in the generator manual). At this time, you should Release the handbrake immediately and try again later.
What is the lifespan of the X-ray exposure handswitch? The electrical service life of the exposure handbrake can reach 400,000 times, and the mechanical service life can reach 200,000 times, so the service life of the handswitch is very long.
We Weifang Newheek Electronic Technology Co., Ltd. is a professional manufacturer of X-ray machines and accessories. We have a complete range of hand brakes. One, two, and three hand switchs are suitable for different X-ray machines. Welcome to consult.
Post time: Sep-22-2022