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Measurement of frequency response in short thermocouple wires
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Meeks, E. L. Forney, L. J. Ma, J. |
| Copyright Year | 1991 |
| Description | Experimental measurements are made for the steady-state frequency response of a supported thermocouple wire. In particular, the effects of axial heat conduction are demonstrated for both a supported one material wire (type K) and a two material wire (type T) with unequal material properties across the junction. The data for the amplitude ratio and phase angle are correlated to within 10 percent with the theoretical predictions of Fralick and Forney (1991). This is accomplished by choosing a natural frequency omega(sub n) for the wire data to correlate the first order response at large gas temperature frequencies. It is found that a large bead size, however, will increase the amplitude ratio at low frequencies but decreas the natural frequency of the wire. The phase angle data are also distorted for imperfect junctions. |
| File Size | 789613 |
| Page Count | 32 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19920002121 |
| Archival Resource Key | ark:/13960/t86h9g768 |
| Language | English |
| Publisher Date | 1991-11-01 |
| Access Restriction | Open |
| Subject Keyword | Temperature Measurement Conductive Heat Transfer Resonant Frequencies Temperature Effects Exhaust Gases Thermocouples Frequency Response Frequency Measurement Gas Temperature Electric Wire Steady State Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Technical Report |
