Maximum recommended viewing distance: Suggests a viewing distance of three to six screen widths for video. This corresponds to the point at which most people will begin having trouble picking out details and reading the screen. Probably too far away to be effective for home theater, OK for everyday TV viewing. Most people are comfortable watching TV between this distance and half this distance. Maximum SMPTE recommended viewing distance: SMPTE standard EG-18-1994 recommends a minimum viewing angle of 30 degrees for movie theaters. This seems to be becoming a de facto standard for front projection home theaters also. Viewing from this distance or closer will result in a more immersive experience, and also lessen eye strain caused by watching a smaller image in a dark room. Maximum and Recommended THX viewing distances: THX also publishes standards for movie theaters to adhere to for THX certification. THX requires that the back row of seats in a theater have at least a 26 degree viewing angle and recommends a 36 degree viewing angle. #WIDESCREEN RESOLUTION CALCULATOR MOVIE#.#WIDESCREEN RESOLUTION CALCULATOR HOW TO#.Each extra bit directly relates to a doubling of the measurement resolution. If you had 3 bit device there would be 8 possible values, therefore the resolution would be 1:8 or 12.5% which twice as good as the 2 bit device. So in this case the resolution would be 1:4 or 25% since it is not possible to discern a value of less than 25% of the range. Therefore if you had a 2 bit device it would provide 4 possible values 00, 01, 10 or 11. The number 2 is used because each bit has a possibility of 2 values 0 or 1. To calculate the number of discreet values or amount of steps that the 0-10Vdc output can be increment by, you would multiply 2 by itself as many times as there are bits. For example a 12 bit DAC (digital to analogue converter) will convert a digital value into an analogue signal such as 0 to 10 volts dc. The number of bits that I device can handle tells signifies the maximum possible number of discreet values that can be determined over a range of measurement. How does the number of bits relate directly to measurement resolution? For example a 12 bit number would be 12 digits long with each digital being a 0 or 1. FAQs What is a bit?Ī bit is number which uses a Base one numbering systems more commonly known as a binary number, and it can have the value of 0 or 1. This calculated by dividing one by the number of step s, or 1/step s. This represents the minimum fraction of the device range that can be measured. This is calculated by dividing one million by the number of steps, or 1000000/step s. The smallest possible difference in values that can be measured, if compared to a scale of 0 to 1,000,000. This is calculated by dividing one hundred by the number of step s, or 100/steps. The minimum possible proportion expressed as a percentage of the available range that can be measured. The maximum number of discreet values or divisions that it is possible to produce from the selected number of bits. a 2 bit ADC would measure 4 separate values, whereas a 2 bit DAQ would divide the output into 3 divisions. One method is R = 2 n and the other is R = 2 n – 1, the former determines the number of discreet digital values and the latter the number of divisions between each discreet value. Two methods are used to determine the resolution of digital measurement devices such as digital to analog converters or analog to digital converters. Select the number of bits specified for the microprocessor, digital to analog converter or analog to digital converter for which you wish to determine the measurement resolution. This bit to measurement resolution converter will calculate the reading resolution of a digital measurement device and display the answer in number of steps, percentage of full span, parts per million and decimal ratio. How does the number of bits relate directly to measurement resolution?.
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