数字比例交流电桥关键技术研究

doi:10.3969/j.issn.1000-1158.2025.01.06

Abstract
Figure/Table
References (19)
Related Citation (15)

Download: PDF (1255 KB) HTML (1 KB)
Export: BibTeX | EndNote (RIS)

Abstract Based on an automatic auxiliary balancing algorithm for bridges， the digital proportional AC bridge device is improved. The improved digital proportional AC bridge can effectively reduce the influence of the central branch potential on the measurement results， and realize automatic and fast measurement. A high-precision voltage follower is introduced to effectively isolate the analog switch from the bridge and the acquisition card to improve the measurement accuracy. The voltage ratio collected by the capture card is corrected， and the corrected voltage relative proportional error is less than 10 μV/V. The improved digital proportional AC bridge device is compared with the traditional four-terminal AC resistance bridge， and the measurement uncertainty of the digital proportional AC bridge is better than 1×10^-5 at typical frequencies.

Key words： electrical measurement ac resistance ac digital ratio bridge automatic balancing

Received: 25 May 2024 Published: 14 January 2025

PACS:

TB971

	Service

	E-mail this article
	Add to my bookshelf
	Add to citation manager
	E-mail Alert
	RSS
	Articles by authors
	WANG Zhiwei
	LI Chengong
	YANG Yan
	HUANG Lu

Cite this article:

WANG Zhiwei,LI Chengong,YANG Yan, et al. Research on the Key Technology of the AC Digital Ratio Bridge[J]. Acta Metrologica Sinica, 2025, 46(1): 30-35.

URL:

http://jlxb.china-csm.org:81/Jwk_jlxb/EN/10.3969/j.issn.1000-1158.2025.01.06 OR http://jlxb.china-csm.org:81/Jwk_jlxb/EN/Y2025/V46/I1/30

18	丁炯，王佳音，王晓娜，等. ADC型高精密测温电桥非线性误差修正方法研究［J］. 计量学报， 2020，41（1）：37-42. DING J，WANG J Y，WANG X N，et al. Research on Nonlinear Error Correction Method for ADC Type High-Precision Temperature Measuring Bridge［J］. Acta Metrologica Sinica，2020，41（1）： 37-42.
10	张书哲. 高精度数字比例技术与阻抗测量技术研究［D］.青岛：青岛大学，2023.
14	张庆思，白金锋，李福云. 消除模拟开关导通电阻影响电路增益的方法［J］. 自动化与仪表， 2014，29（6）：58-60. ZHANG Q S，BAI J F，LI F Y. Overcome the Influence of the ON Resistance of Analog Switch to the Circuit Gain［J］. Automation & Instrumentation，2014，29（6）：58-60.
12	任勇峰，王小兵，张凯华. 模拟开关通道间串扰机理分析及解决办法［J］. 兵器装备工程学报， 2019，40 （6）：198-201. REN Y F， WANG X B， ZHANG K H. Analysis and solution of crosstalk mechanism between simulated switching channels［J］.Journal of Ordnance Equipment Engineering，2019，40 （6）：198-201.
1	THOMPSON A M，LAMPARD D G. A New Theorem in Electrostatics and its Application to Calculable Standards of Capacitance［J］. Nature，1956，177（4515）：888
2	HARVEY I K， COLLINS H C. Precise resistance ratio measurements using a superconducting dc ratio transformer［J］. Review of Scientific Instruments，1973，44（12）：1700-1702.
3	SURDU M N，SALYUK V P .Improving the accuracy of autotransformer and transformer alternating-current bridges［J］. Measurement Techniques，1996，39（6）：665-669
4	AWAD S S，NARASIMHAMURTHI N. Analysis， design， and implementation of an AC bridge for impedance measurements［J］. IEEE transactions on instrumentation and measurement，1994，43（6）：894-899.
5	RYDLER K E，BERGSTEN T，TARASSO V. Determination of phase angle errors of current shunts for wideband power measurement［C］ //CPEM 2012. Washington， USA， 2012：284-285.
7	YANG Y，LU W，HUANG L，et al. A digital impedance bridge with auto-balancing source ratio［C］ //CPEM 2016. Ottawa，Canada， 2016：1-2.
8	齐福强，杨雁，迟宗涛，等. 宽频高精度电感同步采样测量研究［J］. 电测与仪表， 2016，53（5）：70-73，102. QI F Q，YANG Y，CHI Z T，et al. Research on synchronous sampling measurement of broadband high precision inductance［J］. Electrical Measurement and Instrumentation，2016，53（5）：70-73，102.
9	谷静，杨雁，陆青，等. 基于数字比例技术的高精度交流电桥研究［J］. 仪器仪表学报， 2020，41（7）：29-37. GU J，YANG Y，LU Q，et al. Research on high precision AC bridge based on digital proportional technology［J］. Chinese Journal of Scientific Instrument，2020，41（7）： 29-37.
15	张佑峰. 交流比例技术的发展［J］. 电测与仪表，1983，（4）：14-20，13. ZHANG Y F. Development of AC Proportional Technology［J］. Electrical Measurement and Instrumentation，1983，（4）：14-20，13.
16	AMIRA H，HFAIEDH M，VALENTIN M. Quasi-balanced bridge method for the measurements of the impedances［J］. IET Science Measurement & Technology，2009，3（6）：403-409.
17	梁起铭，韩琪娜，施杨，等. 基于量子电压的模数转换器性能评估［J］. 计量学报， 2024， 45（5）：619-625. LIANG Q M，HAN Q N，SHI Y，et al. Analog-to-digital conversion based on quantum voltage［J］. Acta Metrologica Sinica，2024，45（5）：619-625.
6	SURDU M ， SURDU D. Wide range bridge-comparator for accurate impedance measurements on audio- and low frequencies［C］ //CPEM 2014. Rio de Janeiro， Brazil， 2014：88-89.
20	KONJEVOD J，MALARIC R，MOSTARAC P，et al. The AC amplitude and channel characterization of high-resolution digitizers［J］. Measurement，2022，195： 111144-1-111144-10.
19	WIJAYASUNDARA G W C，LEE H K，Park S N，et al. Linearity Evaluation of High-Speed Sampling ADC Board［J］. Measurement， 2017，106： 31-34.
11	白天，王书涛，杨雁，等. 四端对同轴型计算电阻及其量值传递的研究［J］. 仪器仪表学报，2022，43（2）：84-91. BAI T，WANG S T，YANG Y，et al. A Study on the Calculation of Coaxial Resistance and Its Value Transmission at Four Terminals［J］. Chinese Journal of Scientific Instrument， 2022，43（2）：84-91.
13	李琛恭，周天地，杨雁，等. 高隔离度模拟开关及阻抗计量应用研究［J］. 计量科学与技术， 2023，67（4）：83-88，36. LI C G，ZHOU T D，YANG Y，et al. Application of high isolation analog switching and impedance metrology［J］. Metrology Science and Technology，2023，67（4）：83-88，36.