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电学计算器

电学计算器 at Mac App Store analyse

Chunzi Ge
6,000 ratings · Power index: 145
Version 1.1
Size 11.23 Mb
Updated 9 years ago
Released 21 Jun 2016

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Description

Welcome! V vs. W/dBm: Vp = V * CF, (CF = Crest Factor) Vp-p = V * CF * 2 dB = 20 * log10(V/V(ref)), (V(ref) = Reference Voltage) W = V * V / Ω (Ω = load) dBm = 10 * log10(W/1000) dBW = 10 * log10(W) A = V / Ω Input any one of them, get all other values. Error(%) -> Error(dB): Voltage: EdB = 20 * Log10(1+E%/100) Power: EdB = 10 * Log10(1+E%/100) Error(dB) -> Error(%): Voltage: E% = (power(10, EdB/20) - 1)*100% Power: E% = (power(10, EdB/10 - 1)*100% "Δ" is for fine adjusting the input value. PM(rad) vs. dB Jn = BesselJ(rad,n) 1st(dB) = 10 * (Log10(J1*J1) - Log10(J0*J0)) 2nd(dB) = 10 * (Log10(J2*J2) - Log10(J0*J0)) Input any one of them, get others.

Estimates

Monthly Downloads > 3.19k
Est. Revenue ~ $1.31k

Search Keywords 2

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Availability

Devices

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Pricing by country

Country Price
Canada free
China free
France free
Germany free
Italy free
Netherlands free
Portugal free
Spain free
Poland 1.09 EUR
UK free
India free
Japan free
Poland free
Russia free
Turkey free
USA free
Korea, Republic Of free
Ukraine free