You will need
- tape measure or ruler, a TV, a piece of paper and pen for calculations
To measure the diagonal of your TV, first of all you'll need tape measure or meter of sufficient length.
Stretch the tape measure from the upper right to the lower left corners of the screen (only the screen, the casing of the TV are not included). Ensure that the tapes have been well stretched over the entire length. If roulette no, take the thread, pull along the diagonal of the TV, cut or mark the other side. Now measure the length of the thread with a ruler.
Take a pen and paper and write down the resulting measurements result in centimeters.
Follow these simple calculations. Turn centimeters to inches. For this, note that one inch is equal to 2.54 centimeters. Consequently, the received and recorded in centimeters, the result must be divided by 2.54. Use a calculator if you have difficulties with the calculation.
If the length of the roulette/meter is insufficient to cover the entire diagonal, you can calculate the result separately for parties. To do this, measure the width and height of your screen.
Follow these simple calculations. Raise both numbers (the length and width of the screen in the square, and then fold them (e.g., you got numbers 3 and 2, then the squares of these numbers is 9 and 4 respectively, and the sum of the squares of -13, that is, 9+4). Use the functions of the calculator if you are afraid to make a mistake.
Now the resulting number should be converted into inches (i.e., divide by 2.54). Share.
The most simple variant to know the diagonal of your TV - see what is written on the body of the TV. But here we must be careful - very often the manufacturers do not indicate the diagonal of the screen, and the distance from the upper to the lower angle of the hull. You can also find this information in the passport of your home appliances, of course, if he survived. Typically, the diagonal size is printed on the cover.
Advice 2: How to find the diagonal of the TV
Diagonal of the TV is useful to know. About it will ask the repair centre if the unit will need resuscitation. Given diagonal it is necessary to choose the distance at which you can sit in front of the screen.
You will need
- - manual
- - Notepad and pen
To know the diagonal of your TV, you can use several ways. The first and most basic is to look in the instructions to the apparatus or even on the box. Right on the cover of the user's guide specified the brand of TV, model and its diagonal.
It happens that neither the box nor the instructions can not be found. In this case, accurately determine what TV presented to measure: CRT (TV CRT), LCD (LCD) or plasma.
If you have a CRT TV, then measure the diagonal it is necessary for the glass of the bulb. Just pull the cm from one corner diagonally to another. Record the result in centimeters.
LCD/plasma TV before measurement it is necessary to include. Get away from him a meter and a half, look fix extreme luminous pixels in the corners. The fact that LCD and plasma TVs, the image is enclosed in a small black frame around the perimeter of the TV. So the measurements should be carried out at the most distant from each other pixels.
Turning off the TV, walk up to him. Apply cm from one extreme of a luminous pixel diagonally through the screen to the other. Write down the result.
Produce the calculations. Diagonal TV or monitor is always stated in inches. To know the right size, divide the centimeters by 2.54 see the data the result will be the diagonal of your TV.
If you measure the diagonal of the TV with a tape, don't put it close to the screen. The metal can scratch the coating.
To accurately measure the diagonal of the TV difficult enough, so don't be surprised if you get strange number. For the reliability of the result, round it up or down.
Advice 3: How to measure diagonal
For convenience, denote the size of the screen of TV or monitor use of the length of its diagonal - this allows you to specify the size of just one number. It so happened that the number is most often expressed in inches, are not used in most countries that have adopted the metric system of measurement. In Russia, too, the length is measured in inches, but the screen size is still expressed in inches.
If you, too, believe the school teacher, the diagonal of a rectangle is the length between the opposite corners, passing through the center of the figure. Measure this segment of a rectangular screen of your monitor or TV. The tool can serve as a centimeter, measuring ruler, meter, or other available tool, which can be used without fear to damage the surface of the tube or matrix.
And if the school you still remember the Pythagorean theorem, it is possible to do even trickier to measure is the diagonal length and width, and the desired value to compute the root from the sum of the squares of the resulting values. Sometimes using this method is preferable as it guarantees the safety of the surface of a CRT or matrix.
Obtained in the previous steps, the number must be in inches. Usually in these units is indicated by the size of the screen, so most likely, you need it in those units. Every inch contains approximately 2.54 cm, so divide by this value, measured in centimeters the length of the diagonal.
Measure is meaningful only in cases where simpler methods are unavailable. For example, almost always on the body of the device with the screen you can find marking in which one of the numbers indicates the size diagonally. For example, if the designated monitor SyncMaster 2232BW, the first two digits in the numerical designation refer to the diagonal size in inches. If it is necessary to know the diagonal in inches, perform a mathematical operation, the inverse applied in the previous step - 22, multiply by 2.54.
Diagonal of the monitor screen by the numbers in its name, you can define not even examining the case. If the computer is turned on and the operating system is configured correctly, the full name along with the numbers can be seen by going to the settings screen. In Windows 7 and Vista, simply click on the desktop, right-click and select "screen Resolution". The full name of the monitor can be found in the "Screen" of the window.