| TANGO-IN | and TANGO-OUT | QUANTITIES | | |
| Item No. | Name | Symbol | Definition | Remarks |
| 14-6.1 | conduction speed fr vitesse (f) de conduction | c | | Conduction speed in nerve fibres |
| 14-6.2 | angular frequency, pulsatance fr pulsation (f) | ω | ω=2πf, where f is frequency | See ISO 80000-3, item 3-16. |
| 14-6.3 | phase difference fr déphasage(m), différence (f) de phase | φ | difference between the phase of the voltage u=ûcos(ωt)and the electric current i=îcos(ωt), where u is the instantaneous value of the voltage, û is its peak value, i is the instantaneous value of the electric current, î is its peak value, ω is the angular frequency, and t is time. | |
| 14-6.4 | impedance fr impédance (f) | Z | Z= U/I where U is the complex representation of voltage, and I is the complex representation of electric current, item 14-5.9 | See IEC 80000-6, item 6-51.1. Z=│Z│e^jφ |
| 14-6.5 | active energy fr énergie (f) active | W | 0TWui t=d where u and i are the instantaneous values of voltage and current, respectively, and T is the duration of observation | See IEC 80000-6, item 6-52. |
| 14-6.6 | electric potential fr potentiel (m) électrique | V, φ | for electrostatic fields, a scalar quantity, the gradient of which, with reverse sign, is equal to the electric field strength E= -grad V | IEC 80000-6, item 6-11.1 gives φ as a reserve symbol. |
| 14-6.7 | capacitance fr capacité (f) | C | charge divided by potential difference | See IEC 80000-6, item 6-13. |
| 14-6.8 | force fr force (f) | F | F = dp/dt, where F is the resultant force acting on a body, p is momentum of a body and t is time | If the mass of a particle is constant then F = ma,where m is mass and a is acceleration. See ISO 80000-4, item 4-9.1. |
| 14-6.9 | touch thresholds fr seuils (m) du toucher | Ŧt | thresholds for touch, vibration and other stimuli to the skin | See Figures 1, 2, 3 and 4. See also 4, 5, 6, 7, 8 and 11. NOTE All the thresholds defined in 3.2 are applicable to the TANGO-IN modality, but the threshold values are outside the scope of this part of ISO/IEC 80000, and are in some cases not yet determined. For TANGO-IN thresholds, safety thresholds are always above the detection thresholds. The comfort threshold depends on the type of receptor that is being stimulated. For the TANGO-IN thresholds, the maximum stimulation possible without pain is normally used as the safety threshold and is approximately 50 dB above the detection threshold for all forms of taction stimulation. |
Comments (0)
You don't have permission to comment on this page.