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無錫市福馬自動化儀表廠
無錫市福馬自動化儀表廠
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浮球傳感器UDX-41,,電振音叉說明書J-SB2
供大專學校基礎物理實驗，作邁爾德氏弦振動試驗之用。
Specially used for Maier De's string vibration test in fundamental physics experiment of universities a
電振音叉說明書J-SB2型
User’s Manual for J-SB2 Fork Oscillator
浮球傳感器UDX-41,,電振音叉說明書J-SB2用途：
Application:
供大專學校基礎物理實驗，作邁爾德氏弦振動試驗之用。
Specially used for Maier De's string vibration test in fundamental physics experiment of universities and colleges
結構及基本性能：
Structure and basic properties:
本儀器為一大型音叉，由整塊的鋼材切削而成。在兩叉枝的頂端，裝置記錄筆尖一對，以供記錄波紋之用。叉柄固著于木質底板上的Ω型底坐上，在兩叉枝間距叉頂約三分之一處，裝置一電磁鐵，在左側叉枝的外側配備斷續接觸器，接通電流后，配合音叉的振動，形成勵磁線圈斷續通電，致使電磁鐵產生間斷吸力，驅使音叉作長期的振動。本音叉頻率約為100周/秒，每具音叉的實際頻率數均用硬印標出。標出的頻率數據就是是音叉頂部裝有一對記錄筆尖的頻率，如將此等附件連同螺絲全部卸去，則頻率約增加4分之3周。由于音叉叉枝質量較大，故在實驗中如弦振動駐波試驗等，負荷稍有變動時，對頻率的影響不大。
This instrument is a large tuning fork made from the cutting of one-piece steel material. A pair of recording pen-points is mounted at the top of two branches for the purpose of recording ripples. Fork handle is fixed on the Ω type seat of wooden bottom plate, one electromagnet is arranged between two fork branches and about one third away from the fork top, and an intermittent contactor is mounted at the outside of left-side fork branch. After the power supply is switched on, it is possible to form excitation coil, provide intermittent electricity, cause the electromagnet to produce intermittent suction, and drive the tuning form to produce long-term vibration. The frequency of tuning fork is 100 cycle per second, and the actual frequency number of each of tuning fork is marked with embossing seal. The marked frequency data equals to the frequency of a pair of recording pen points mounted at the top of tuning fork, and the frequency may increase 3/4 cycle, provided that these accessories and other screws are completely dismantled. Due to the larger mass of tuning form branch, slight changes in load may not have significant impact on frequency in such experiment as string vibration standing wave test.
浮球傳感器UDX-41,,電振音叉說明書J-SB2使用方法：
Use Method:
將本儀器底板上所附電源輸出叉頭接在底板的接線柱上（或根據需要另接電源），調節斷續器接觸點螺絲，使音叉維持穩定振動，叉端振幅約達1.5m/m。調節適度后，即將螺帽固緊使不至松動。一次調節后如所用電源的電壓不變，則以后使用時可不必再行調節。在使用時如音叉呈靜止狀態,則斷續
浮球傳感器UDX-41,,電振音叉說明書J-SB2
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