Simple resistance standard with calculable time constant
| Autor: | Martin Šíra, Stanislav Maslan, Jiri Streit, Vera Novakova Zachovalova |
|---|---|
| Rok vydání: | 2016 |
| Předmět: |
0301 basic medicine
Physics business.industry 020208 electrical & electronic engineering 030106 microbiology Mathematical analysis Bifilar coil Electrical engineering Time constant 02 engineering and technology Frequency dependence law.invention Inductance 03 medical and health sciences law Simple (abstract algebra) 0202 electrical engineering electronic engineering information engineering Range (statistics) Resistor business Manganin |
| Zdroj: | 2016 Conference on Precision Electromagnetic Measurements (CPEM 2016). |
| Popis: | This paper describes a simple, affordable and easily replicable 10 Ω resistance standard with calculable frequency dependence and time constant. The resistor is a bifilar type made from an enameled manganin wire. A time constant of 6.05 ns with uncertainty of 0.53 ns was calculated and verified by comparison with another calculable resistance standard. A calculated and measured ac-dc difference of a resistance is smaller than −150μΩ/Ω with an uncertainty 270μΩ/Ω at 1 MHz (coverage factor k = 2). The same design can be used for resistances at least in range of 5 Ω up to 70 Ω. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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