QJ23A 直流電阻電橋
QJ23A直流電阻電橋產(chǎn)品介紹（中文）
QJ23A型直流電阻電橋是一款采用惠斯頓電橋線(xiàn)路設(shè)計(jì)的便攜式測(cè)量?jī)x器，內(nèi)附電子放大式指零儀和電池盒，可測(cè)量1Ω至11.110MΩ范圍內(nèi)的直流電阻值。該產(chǎn)品采用金屬外殼封裝，結(jié)構(gòu)輕巧（重量約3kg），便于實(shí)驗(yàn)室、車(chē)間及無(wú)交流電源的現(xiàn)場(chǎng)使用。電橋配備JZ8-23A型高靈敏度指零儀，具備機(jī)械調(diào)零和自動(dòng)關(guān)機(jī)功能，其測(cè)量盤(pán)采用四組十進(jìn)電阻盤(pán)（0-11110Ω可調(diào)），結(jié)合6檔量程倍率（×0.001至×1000），可實(shí)現(xiàn)最小1mΩ的分辨力。工作電源采用4.5V（3節(jié)1號(hào)電池）和9V疊層電池組合，在20±1.5℃環(huán)境溫度下基本誤差符合行業(yè)要求。特別設(shè)計(jì)的抗過(guò)載電路能有效保護(hù)儀器，適合電機(jī)、變壓器繞組等感性負(fù)載電阻測(cè)量，使用時(shí)需遵循先接通電源后操作指零儀的順序。產(chǎn)品尺寸為258×213×144mm，采用無(wú)感繞制錳銅電阻元件，經(jīng)過(guò)人工老練工藝處理，穩(wěn)定性較好。81922
QJ23A DC Resistance Bridge Product Introduction (English)
The QJ23A DC Resistance Bridge is a portable measuring instrument based on Wheatstone bridge circuit, featuring built-in electronic null detector and battery compartment for measuring DC resistance from 1Ω to 11.110MΩ. Encased in a compact metal housing (dimensions: 258×213×144mm, weight: ~3kg), it suits laboratory, workshop and field applications without AC power supply. The device employs JZ8-23A high-sensitivity null detector with mechanical zero-adjustment and auto-shutdown functions. Its four-decade resistance dials (0-11110Ω adjustable) combined with 6 range multipliers (×0.001 to ×1000) achieve 1mΩ resolution. Powered by 4.5V (3×AA batteries) and 9V laminated battery, the bridge maintains operational accuracy at 20±1.5℃ ambient temperature. The overload-proof circuit design protects the instrument during inductive load measurements (e.g. motor windings), requiring sequential operation of power button before null detector. Manganin wire resistors with non-inductive winding and artificial aging process ensure measurement stability. The ergonomic design includes rotary switches and clearly labeled terminals for user-friendly operation.121928
QJ23A 直流電阻電橋
的詳細(xì)介紹
型號(hào)：QJ23系列
本品為惠斯登電橋電路，測(cè)量中阻很方便，電池型適合戶(hù)外使用，市電型適合實(shí)驗(yàn)室使用。型號(hào)前有FM為市電型，無(wú)FM為電池型。
| 型號(hào) |
測(cè)量范圍 |
準(zhǔn)確度 |
尺度cm3 |
| QJ23 |
1Ω～9.999MΩ |
0.2
|
260×215×140 |
| QJ26 |
260×215×140 |
| QJ23A |
1Ω～11.11MΩ |
0.1
|
重量kg |
| QJ26a |
2.8 |
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