网上赌场真人发牌-澳门网上赌场空城

JO401演示電表是根據(jù)新的教學(xué)大綱，為普及九年制義務(wù)教育而設(shè)計(jì)的新型演示電表，可用于測(cè)量直流電流、直流電壓、也可作檢流計(jì)用，是教學(xué)中研究磁電系電表結(jié)構(gòu)的直觀教具，該表有良好的直觀性，高的可見度，操作方便，結(jié)構(gòu)合理，采用優(yōu)質(zhì)磁鋼的內(nèi)磁結(jié)構(gòu)。使儀表的磁性穩(wěn)定，靈敏度高、重量輕、攜帶方便，表頭采用硅二級(jí)管保護(hù)電路，可防止過載電流損壞電表，而且具有價(jià)廉、物美、質(zhì)好的特點(diǎn)。 The JO401 Demonstrating Galvanometer is an ideal visual aid specifically esigned according to the devised educatble schema for the 9-years compulsory educational plan .besides working as galvanometer,it is suitable for measuring educational plan.provides such excellence as magnetic stabiliry,high accuit which can prevent damages from overloading .other excellence can be listed as following;visual convenience,openness easily to control, excellent arrangement high and cheap in price etc.

JO403高中演示電表為指針或內(nèi)磁結(jié)構(gòu)，及測(cè)量線路等部分所組成，共有十四個(gè)測(cè)量檔位，使用方便，性能穩(wěn)定，安全可靠，供學(xué)生教學(xué)演示實(shí)驗(yàn)中作檢流計(jì)測(cè)量微量直流電流及直流電壓，直流電阻等演示項(xiàng)目. The model JO402 is comprised of inner magnetic structure and measuring Circuit It has such excellence as esily for usage ,stabriitym safety, and visual for demonstration.It provides14measuring ranges and may serve as galvanometer or measuring instrument of DCA DCV ACA and ACV ?

1. 測(cè)量范圍：Measuring Range:DCA:-500uA-0-+500uA 0-10-100mA-1-5A DCV:0-5-10V ACA:0-10-100mA-1-5AACV:0-10-50-250V 2.基本誤差Basic Deviation:±2.5% 3.阻尼時(shí)間　Damp time ≤65 4.重量　　Weight:1kg 5.外形尺寸：Dimensions:115×270×300mm 　　J0402 Demonstrating Galvanometer for Middle school(Ammeter &Voltmeter) 　　高中演示電表為指針式內(nèi)磁結(jié)構(gòu)，及其測(cè)量電路等部份所組成。它具有使用方便，性能穩(wěn)定、安全可靠、演示直觀等優(yōu)點(diǎn)。它共有十四檔測(cè)量量程，供教學(xué)演示實(shí)驗(yàn)中作檢流計(jì)，及測(cè)量直流電流、直流電壓、交流電流、交流電壓等之用。 　　The model JO402 is comprised of inner magnet ic structure and measuring Circuit. It has such excellence as easily for usage, stabriity, safety,and visual for demonstration. It provides14 measuring ranges and may serve as galvanometer or measuring instrument of DCA,DVv,ACA and ACV ?

產(chǎn)品詳細(xì)介紹

小鐵指針和磁鐵，看得見的磁感線。

平面240mm×120mm×10mm，鐵粉和磁鐵，看得見的磁感線。

120mm×45mm×75mm，由觀察器和反轉(zhuǎn)片組成，含10種片源，可觀察立體圖像。