What is an oscillographer?

The oscillograph is a tool used to measure electric current and voltage. Today there are two types of oscillographs that are commonly used: an oscilloscope of the cathode beam and an electromagnetic oscillograph. The electromagnetic oscillograph is basic in the design and has a simple magnetic coil and the way of measuring changes in the coil. Cathodo-magazine oscilloscope is a more complex-dokonce and the basic model is built on the cathode tube (CRT), similar to older televisions. The oscilloscope tends to provide more accurate data and is used in many fields, including science, medicine and engineering. It is commonly used in laboratory experiments, maintenance of electronic equipment and problem solving and as a medical diagnostic tool such as the display of wave forms of heart rhythm in the electrocardiogram. Modern models use LED or LCD screens instead of cathode rays.

Electromagnetic oscillograph is a surprisingly simple tool. The current is fed through the instrument and into the magnetic coil. MIrish changes in the electric current cause momentum in the coil. This momentum is measured and any changes in current or voltage are derived from the speed and bending of the coil.

There are two common variants of standard electromagnetic oscillograph; One uses lasers and the other has a direct output. When it is equipped with a laser, the light bounced off the laser from the curved mirror and back to the receiver. The time that takes the return of light is measured instead of the coil to measure directly. This makes the values ​​more accurate and make it easier to see minor changes in the current. The direct output on the oscillographer often takes the form of one or more wave patterns on paper, because the current is fed into the machine. This variation is the only form of direct output common in electromagnetic oscillograph, other Formas power is only measurement strings that require interpretation before they are useful.

oscilloscopes of the cathode-ray use a small screen of formsNou TV to display the actual wave pattern of current when it passes through the device. When no current is powered by a device, CRT displays one stationary dot or one dot moving vertically over the screen. When the current moves, the power supply moves through a series of boards that measure the current change. The current current causes these boards to fluctuate in relation to each other and this movement reflects on the screen using a dot moving up and down. This movable dot actually shows electricity in its wave form. This allows the device to measure not only standard current, such as electromagnetic oscillograph, but also progress such as cardiac rhythms.