Quality is life, service is the tenet
發(fā)布時間: 2024-08-16
產(chǎn)品型號:
廠商性質(zhì): 生產(chǎn)廠家
所 在 地: 北京市海淀區(qū)上地科技園上地十街1號
產(chǎn)品特點: 電容器紙介電常數(shù)測試儀測量技術(shù)在民用,工業(yè)以及軍事等各個領(lǐng)域應(yīng)用廣泛。本文主要對介電常數(shù)測量的常用方法進(jìn)行了綜合論述。首先對國家標(biāo)準(zhǔn)進(jìn)行了對比總結(jié);然后分別論述了幾種常用測量方法的基本原理、適用范圍、優(yōu)缺點及發(fā)展近況;后對幾種測量方法進(jìn)行了對比總結(jié),得出結(jié)論。
電容器紙介電常數(shù)測試儀滿足標(biāo)準(zhǔn):GBT1409-2006測量電氣絕緣材料在工頻、音頻、高頻(包括米波波長在內(nèi))下電容率和介質(zhì)損耗因數(shù)的推薦方法
電容器紙介電常數(shù)測試儀概述
介質(zhì)損耗和介電常數(shù)是各種電瓷、裝置瓷、電容器等陶瓷,還有復(fù)合材料等的一項重要的物理性質(zhì),通過測定介質(zhì)損耗角正切tanδ及介電常數(shù)(ε),可進(jìn)一步了解影響介質(zhì)損耗和介電常數(shù)的各種因素,為提高材料的性能提供依據(jù);儀器的基本原理是采用高頻諧振法,并提供了,通用、多用途、多量程的阻抗測試。它以單片計算機(jī)作為儀器的控制,測量核心采用了頻率數(shù)字鎖定,標(biāo)準(zhǔn)頻率測試點自動設(shè)定,諧振點自動搜索,Q值量程自動轉(zhuǎn)換,數(shù)值顯示等新技術(shù),改進(jìn)了調(diào)諧回路,使得調(diào)諧測試回路的殘余電感減至低,并保留了原Q表中自動穩(wěn)幅等技術(shù),使得新儀器在使用時更為方便,測量值更為精確。儀器能在較高的測試頻率條件下,測量高頻電感或諧振回路的Q值,電感器的電感量和分布電容量,電容器的電容量和損耗角正切值,電工材料的高頻介質(zhì)損耗,高頻回路有效并聯(lián)及串聯(lián)電阻,傳輸線的特性阻抗等。
該儀器用于科研機(jī)關(guān)、學(xué)校、工廠等單位對無機(jī)非金屬新材料性能的應(yīng)用研究。
A型高頻Q表和C型高頻Q表主要區(qū)別
| A | C |
測試頻率范圍 | 25kHz~60MHz | 100kHz~160MHz |
主調(diào)電容控制 | 傳感器 | 步進(jìn)馬達(dá) |
電容搜索 | 無 | 有 |
A/C高頻Q表能在較高的測試頻率條件下,測量高頻電感或諧振回路的Q值,電感器的電感量和分布電容量,電容器的電容量和損耗角正切值,電工材料的高頻介質(zhì)損耗,高頻回路有效并聯(lián)及串聯(lián)電阻,傳輸線的特性阻抗等。該儀器廣泛地用于科研機(jī)關(guān)、學(xué)校、工廠等單位。A/C高頻Q表是北廣精儀儀器設(shè)備有限公司研制的產(chǎn)品,它以DDS數(shù)字直接合成方式產(chǎn)生信號源,頻率達(dá)60MHz/160MHz,信號源具有信號失真小、頻率精確、信號幅度穩(wěn)定的優(yōu)點,更保證了測量精度的精確性。A主電容調(diào)節(jié)用傳感器感應(yīng),電容讀數(shù)精確,且頻率值可設(shè)置。C主電容調(diào)節(jié)用步進(jìn)馬達(dá)控制,電容讀數(shù)更加精確,頻率值和電容值均可設(shè)置。A/C電容、電感、Q值、頻率、量程都用數(shù)字顯示,在某一頻率下,只要能找到諧振點,都能直接讀出電感、電容值,大大擴(kuò)展了電感的測量范圍,而不再是固定的幾個頻率下才能測出電感值的大小。A/C*的諧振點頻率自動搜索或電容自動搜索功能,能幫助你在使用時快速地找到被測量器件的諧振點,自動讀出Q值和其它參數(shù)。Q值量程可手動或自動轉(zhuǎn)換。
工作特性
1.Q值測量
a.Q值測量范圍:2~1023;
b.Q值量程分檔:30、100、300、1000、自動換檔或手動換檔;
c.標(biāo)稱誤差
頻率范圍 25kHz~10MHz 固有誤差≤5%±滿度值的2% 工作誤差≤7%±滿度值的2%
頻率范圍 10MHz~60MHz 固有誤差 ≤6%±滿度值的2% 工作誤差≤8%±滿度值的2%
電感測量范圍 14.5nH~8.14H
直接測量范圍 1-460P 主電容調(diào)節(jié)范圍 40~500pF 準(zhǔn)確度 150pF以下±1.5pF;150pF以上±1%
注:大于直接測量范圍的電容測量見使用方法。
信號源頻率覆蓋范圍
頻率范圍 10kHz~70MHz
CH1 10~99.9999kHz CH2 100~999.999kHz CH3 1~9.99999MHz CH4 10~70MHz ?頻率指示誤差3×10-5±1個字
5.Q合格指示預(yù)置功能:預(yù)置范圍:5~1000
6.Q表正常工作條件
a. 環(huán)境溫度:0℃~+40℃;
b.相對濕度:<80%;
c.電源:220V±22V,50Hz±2.5Hz。
7.其他
a.消耗功率:約25W;
b.凈重:約7kg;
c.外型尺寸:(寬×高×深)mm:380×132×280。
高壓電橋采用典型的西林電橋線路。C4橋臂在基本量程時,與R4橋臂并聯(lián),測量數(shù)值為正損耗因數(shù)。結(jié)構(gòu)采用了雙層屏蔽。并通過輔橋的輔助平衡,消除寄生參數(shù)對電橋平衡的影響。輔橋由電位自動電位跟蹤器與內(nèi)層屏蔽(S)組成。自動跟蹤器由電子元器件組成。它在橋頂B處取一輸入電壓,通過放大后,在內(nèi)屏蔽(S)產(chǎn)生一個與B電位相等的電壓。當(dāng)電橋在平衡時,A,B,S三點電位必然相等,從而達(dá)到自動跟蹤的目的。本電橋在平衡過程中,輔橋采用自動電位跟蹤,在主橋平衡過程的同時,輔橋也自動跟蹤始終處于平衡的狀態(tài),用戶只要對主橋平衡進(jìn)行操作就能得到可靠的所需數(shù)據(jù)。同時也有效的抑制了電壓波動對平衡所帶來的影響。在指零部分,采用了指針式電表指示,視覺直觀,分辨清楚,克服了以往振動式檢流計的缺點。
高壓電橋是本公司推出的新一代高壓電橋,主要用于測量工業(yè)絕緣材料的介質(zhì)損耗(tgδ)及介電常數(shù)(ε)。符合GB1409、GB5654及GB/T1693, ASTM D150-1998(2004) 固體電絕緣材料的交流損耗特性及介電常數(shù)的試驗方法其采用了西林電橋的經(jīng)典線路,內(nèi)附0-2500的數(shù)顯高壓電源及100PF標(biāo)準(zhǔn)電容器,并可按用戶要求擴(kuò)裝外接標(biāo)準(zhǔn)電容線路。
性能特點:
1. 平板電容器
極片尺寸:φ25.4mmφ50mm
極片間距可調(diào)范圍和分辨率:≥10mm,±0.01mm
2. 園筒電容器
電容量線性:0.33pF / mm±0.05 pF
長度可調(diào)范圍和分辨率:≥0~20mm,±0.01mm
3. 夾具插頭間距:25mm±1mm
4. 夾角損耗角正切值:≤4×10-4(1MHz時)
工作原理
本測試裝置是由二只測微電容器組成,平板電容器一般用來夾持被測樣品,園筒電容器是一只分辨率高達(dá)0.0033pF的線性可變電容器,配用儀器作為指示儀器,絕緣材料的損耗角正切值是通過被測樣品放進(jìn)平板電容器和不放進(jìn)樣品的Q值變化,由園筒電容器的刻度讀值變化值而換算得到的。同時,由平板電容器的刻度讀值變化而換算得到介電常數(shù)。
橋體內(nèi)附電位跟蹤器及指零儀,外圍接線及少。
電橋采用接觸電阻小,機(jī)械壽命長的十進(jìn)開關(guān),保證測量的穩(wěn)定性
儀器具有雙屏蔽,能有效防止外部電磁場的干擾。
儀器內(nèi)部電阻及電容元件經(jīng)特殊老化處理,使儀器技術(shù)性能穩(wěn)定可靠。
內(nèi)附高壓電源精度3%
內(nèi)附標(biāo)準(zhǔn)電容損耗﹤0.00005,名義值100pF
北京北廣精儀主營產(chǎn)品:萬能材料試驗機(jī)(拉力機(jī))、電壓擊穿試驗儀、體積表面積電阻率測試儀、介電常數(shù)與介質(zhì)損耗測試儀、低溫脆性沖擊試驗儀、耐電弧性能試驗儀、高壓漏電起痕試驗儀、環(huán)境試驗箱、維卡熱變形試驗儀、轉(zhuǎn)子硫化儀、熔體流動速率儀、水平垂直燃燒試驗儀、門尼粘度試驗儀、阿克隆磨耗試驗機(jī)、氣動沖片機(jī)、手動沖片機(jī)、滑動摩擦磨損試驗機(jī)、啞鈴制樣機(jī)、簡支梁沖擊試驗機(jī)、懸臂梁沖擊試驗機(jī)、氧指數(shù)測定儀、水分測定儀、海綿密度測定儀、橡膠回彈儀等
Beijing Beiguang precision instrument main products: universal material testing machine (tensile machine), voltage breakdown tester, volume surface resistivity tester, dielectric constant and dielectric loss tester, low temperature brittleness impact tester, arc resistance tester, high voltage leakage trace tester, environmental test box, Vicat thermal deformation tester, rotor vulcanizer, melt flow rate tester, water Horizontal and vertical combustion tester, Mooney viscosity tester, Akron abrasion tester, pneumatic punching machine, manual punching machine, sliding friction abrasion tester, dumbbell prototype, simple beam impact tester, cantilever impact tester, oxygen index tester, moisture tester, sponge density tester, rubber rebound tester, etc
部分產(chǎn)品介紹:
硫化橡膠耐電壓強度試驗儀/符合國標(biāo)GB/T1408-2006、ASTMD149
體積表面電阻率測試儀/符合國標(biāo)GB/T1410-2006、ASTMD257-99
介電常數(shù)介質(zhì)損耗測試儀/符合國標(biāo)GB/T1409-2006
塑料球壓痕硬度測試儀/符合國標(biāo)GB/T3398-2008
橡膠塑料摩擦磨損試驗機(jī)/符合國標(biāo)GB/T3960-1983
熱變形維卡溫度測定儀/符合國標(biāo)GB/T8802-2001
熔體流動速率測定儀/符合國標(biāo)GB/T3682-2000
水平垂直燃燒試驗儀/符合國標(biāo)GBGB/T5169.16-2002、ANSI/UL94
氧指數(shù)測定儀GB/T2406.2-2009GB/T2406.1-2008
垂直燃燒試驗機(jī)符合國標(biāo)GB/T18380.11-2008
門尼粘度試驗機(jī)符合國標(biāo)GB/T 1232、GB/T1233、ISO289、ISO667
維卡軟化點測試儀符合國標(biāo)GB/T 1633、GB/T1634、GB 8802
無轉(zhuǎn)子硫化儀符合國標(biāo)GB/T16584
售后內(nèi)容:
我公司派工程師負(fù)責(zé)安裝調(diào)試及培訓(xùn)。
產(chǎn)品自客戶驗收之日起,免費保修2年,終身維修。
1、設(shè)備安裝調(diào)試:
免費為用戶提供所購儀器的安裝調(diào)試服務(wù)。在進(jìn)行安裝調(diào)試前用戶方應(yīng)提供相應(yīng)的準(zhǔn)備工作,并予以提前通知,具體安裝調(diào)試日期雙方可以協(xié)商而定。設(shè)備安裝調(diào)試由多年行業(yè)資深工程師免費進(jìn)行。保證用戶可以正確使用、軟件操作和一般維護(hù)以及應(yīng)及故障的處理。
2、培 訓(xùn):
我公司工程師免費為用戶提供操作人員培訓(xùn),直到操作人員能獨立操作為止。
3、設(shè)備驗收標(biāo)準(zhǔn):
用戶方按訂貨技術(shù)要求進(jìn)行驗收。并符合國家標(biāo)準(zhǔn)要求。設(shè)備驗收在用戶方進(jìn)行并由我公司安裝調(diào)試技術(shù)人員和用戶共同在維修報告上簽字以確認(rèn)儀器的調(diào)試工作完成。
4、設(shè)備維修服務(wù):
我公司產(chǎn)品自用戶現(xiàn)場調(diào)試驗收合格后2年內(nèi)免費保修,終身維護(hù)。在2年免費保修期內(nèi)產(chǎn)品發(fā)生非人為質(zhì)量問題,我公司為客戶提供免費維修。如產(chǎn)品在免費保修期外出現(xiàn)故障,維修服務(wù)只適當(dāng)收取材料成本費。
5、技術(shù)zhi持:
對于所需儀器的用戶,根據(jù)用戶的要求提供專業(yè)的技術(shù)方案。除了常規(guī)的儀器服務(wù)外,我公司技術(shù)部還可為用戶提供各種非常規(guī)設(shè)備的技術(shù)zhi持。
6、售后響應(yīng):
在接到用戶維修邀請后,2小時內(nèi)做出反應(yīng),并給予解決。如未解決,我公司指派工程師及時到達(dá)用戶現(xiàn)場,解決問題至設(shè)備正常使用為止。
After-sale service
After sales content:
Our company sends engineers to be responsible for installation, debugging and training.
Products from the date of customer acceptance, free warranty for 2 years, life-long maintenance.
1. Equipment installation and commissioning:
Provide free installation and debugging services for users. Before installation and commissioning, the user shall provide corresponding preparations and give advance notice. The specific installation and commissioning date can be determined by both parties through consultation. The equipment installation and debugging are carried out by senior engineers for many years free of charge. Ensure that the user can use the software correctly, operate and maintain the software, and deal with the faults.
2. Training:
Our company's engineers provide free operator training for users until the operators can operate independently.
3. Equipment acceptance standard:
The user shall conduct acceptance according to the order technical requirements. And meet the requirements of national standards. The equipment acceptance shall be conducted by the user side, and the installation and commissioning technicians of our company and the user shall jointly sign the maintenance report to confirm the completion of the instrument commissioning.
4. Equipment maintenance service:
Our company's products are free of charge for warranty and lifetime maintenance within 2 years after the user's on-site commissioning and acceptance. During the 2-year free warranty period, our company provides free maintenance for customers in case of non-human quality problems. If the product breaks down outside the free warranty period, the maintenance service will only charge the material cost properly.
5. Technical support:
For the users of required instruments, professional technical solutions shall be provided according to the requirements of users. In addition to conventional instrument services, our company's technical department can also provide users with technical support for various unconventional equipment.
6. After sales response:
After receiving the user's maintenance invitation, respond within 2 hours and solve it. If it is not solved, our company will assign engineers to arrive at the user's site in time to solve the problem until the equipment is in normal use. 售后內(nèi)容:
我公司派工程師負(fù)責(zé)安裝調(diào)試及培訓(xùn)。
產(chǎn)品自客戶驗收之日起,免費保修2年,終身維修。
1、設(shè)備安裝調(diào)試:
免費為用戶提供所購儀器的安裝調(diào)試服務(wù)。在進(jìn)行安裝調(diào)試前用戶方應(yīng)提供相應(yīng)的準(zhǔn)備工作,并予以提前通知,具體安裝調(diào)試日期雙方可以協(xié)商而定。設(shè)備安裝調(diào)試由多年行業(yè)資深工程師免費進(jìn)行。保證用戶可以正確使用、軟件操作和一般維護(hù)以及應(yīng)及故障的處理。
2、培 訓(xùn):
我公司工程師免費為用戶提供操作人員培訓(xùn),直到操作人員能獨立操作為止。
3、設(shè)備驗收標(biāo)準(zhǔn):
用戶方按訂貨技術(shù)要求進(jìn)行驗收。并符合國家標(biāo)準(zhǔn)要求。設(shè)備驗收在用戶方進(jìn)行并由我公司安裝調(diào)試技術(shù)人員和用戶共同在維修報告上簽字以確認(rèn)儀器的調(diào)試工作完成。
4、設(shè)備維修服務(wù):
我公司產(chǎn)品自用戶現(xiàn)場調(diào)試驗收合格后2年內(nèi)免費保修,終身維護(hù)。在2年免費保修期內(nèi)產(chǎn)品發(fā)生非人為質(zhì)量問題,我公司為客戶提供免費維修。如產(chǎn)品在免費保修期外出現(xiàn)故障,維修服務(wù)只適當(dāng)收取材料成本費。
5、技術(shù)zhi持:
對于所需儀器的用戶,根據(jù)用戶的要求提供專業(yè)的技術(shù)方案。除了常規(guī)的儀器服務(wù)外,我公司技術(shù)部還可為用戶提供各種非常規(guī)設(shè)備的技術(shù)zhi持。
6、售后響應(yīng):
在接到用戶維修邀請后,2小時內(nèi)做出反應(yīng),并給予解決。如未解決,我公司指派工程師及時到達(dá)用戶現(xiàn)場,解決問題至設(shè)備正常使用為止。
After-sale service
After sales content:
Our company sends engineers to be responsible for installation, debugging and training.
Products from the date of customer acceptance, free warranty for 2 years, life-long maintenance.
1. Equipment installation and commissioning:
Provide free installation and debugging services for users. Before installation and commissioning, the user shall provide corresponding preparations and give advance notice. The specific installation and commissioning date can be determined by both parties through consultation. The equipment installation and debugging are carried out by senior engineers for many years free of charge. Ensure that the user can use the software correctly, operate and maintain the software, and deal with the faults.
2. Training:
Our company's engineers provide free operator training for users until the operators can operate independently.
3. Equipment acceptance standard:
The user shall conduct acceptance according to the order technical requirements. And meet the requirements of national standards. The equipment acceptance shall be conducted by the user side, and the installation and commissioning technicians of our company and the user shall jointly sign the maintenance report to confirm the completion of the instrument commissioning.
4. Equipment maintenance service:
Our company's products are free of charge for warranty and lifetime maintenance within 2 years after the user's on-site commissioning and acceptance. During the 2-year free warranty period, our company provides free maintenance for customers in case of non-human quality problems. If the product breaks down outside the free warranty period, the maintenance service will only charge the material cost properly.
5. Technical support:
For the users of required instruments, professional technical solutions shall be provided according to the requirements of users. In addition to conventional instrument services, our company's technical department can also provide users with technical support for various unconventional equipment.
6. After sales response:
After receiving the user's maintenance invitation, respond within 2 hours and solve it. If it is not solved, our company will assign engineers to arrive at the user's site in time to solve the problem until the equipment is in normal use.