昨日はああいったが、今日はまた増量、しかも大盛り（死）。
現代控制、感測原理、色々．．．
感測原理の宿題：
1-1. A given sensor has a specified linearity error of 1% of the reading plus 0.1% of the full-scale output (FSO). A second sensor having the same measurement range has a specified error of 0.5% of the reading plus 0.2 % FSO. For what range of values is the first sensor more accuratethan the second one? If the second sensor had a measurement range twice that of the first one, for what range of values would it be the more accurate?
1-2. Which of the following numerical results of a measurement are incorrectly expressed: 100`C +/- 0.1`C, 100`C +/- 1`C, 100`C +/- 1%, 100`C +/- 0.1% ?
1-3. A Pitot tube in a pipe determines flow velocity from a differential pressure measurement. If the manometer has 2% untcertainty, what is the uncertainty in the flow velocity? If the total pressure is about five times the static pressure, what would be the uncertainty in a worst-case condition if two relative manometer were used instead and their readings subtracted?
1-6. A bare temperature sensor (First-order dynamic response) is used to measure a turbulent flow with fluctuations of up to 100Hz. If the dynamic error is to be held smaller than 5%, what time constant should the sensor have?
1-7. Figure P1.7 shows the control circuit for an oven that includes a crystal oscillator and its equivalent analog circuit. The aim is to keep the oven at 70`C for an ambient temperture of 30`C. The heater is a 50 g coil wounded around a copper cylinder (specific heat Cp = 390 J/kg.k) that applies 3 W in average. Heat is lost by conduction through the thermal insulation. Determine the transfer founction for the system and its time constant. Assume that copper has negligible thermal resistance.
1-8. The Model 3145 acceleromenter (Eurosensor) has a damping ratio of 0.7 typical and 0.4 minimal, along with a typical resonant frequency of 1200 Hz. Calcukate the maximal overshoot when applying a 10 g step acceleration for both the typical and minimal damping ratio, and determine the time elapsed to the overshoot for the typical damping ratio.
さっき、アニメイトから、漢字と日本人 (文春新書)が到着したのお知らせを貰いました。
今の状態で観る時間が有るか否か未だ判りません...しかも機動戦士ガンダム MS大図鑑 宇宙世紀ボックス (エンターテインメント・バイブルシリーズ)が未だ届かないよね、遅い...
附筆：最近、「高橋美鈴」を検索して着た方は少なくないなぁ...
申し訳ありません、此方の「高橋」は多分「高橋良輔」或るいは「高橋昌也」だけです。また、「高橋留美子」も有るかも。
そして「美鈴」なら多分「豪和美鈴」か「厳島美鈴」だと思います。「観鈴ちん」と「中国」の可能性もかなり低い。
