Sep 29, 2020 11:20
3 yrs ago
9 viewers *
English term
parallel fingers topology
English to Polish
Tech/Engineering
Engineering (general)
The parallel fingers (GND-sensor) topology works under the principle of fringing capacitance. High sensitivity along the z-axis (see Figure 11) of the sensors enables this topology to be implemented in liquid level sensing applications. The electric field lines are more dominant near the edges between the sensor and ground plates. The capacitance calculations are not as straightforward as the simple parallel plate form but the sensitivity of the sensors increases as sensor size increases (non-linearly). A shield on the backside of the main sensor and GND electrode provides directivity towards the target.
https://www.ti.com/lit/an/snoa927/snoa927.pdf?ts=16013781114...
https://www.ti.com/lit/an/snoa927/snoa927.pdf?ts=16013781114...
Proposed translations
(Polish)
3 +1 | konfiguracja z elektrodami równoległymi | Crannmer |
Proposed translations
+1
4 hrs
konfiguracja z elektrodami równoległymi
Declined
konfiguracja [elektrod czujnika] z elektrodami równoległymi
Note from asker:
A jak to wyraźnie odróżnić od parallel plate topology? |
Discussion
Oryginał zajmuje się geometryczną konfiguracją elektrod (tu: [umieszczone na jednej płaszczyźnie] równoległe elektrody podłużne).
Taki opis kojarzony jesz z elektrodami lezącymi obok siebie, a nie na sobie, jak płyty/okładziny kondensatora.
liquid-level sensing with parallel sensor and ground (b),
and material detection and analysis (c). (Courtesy of TI)
- https://tinyurl.com/y43hlrwx
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In many applications, such as chemical storage, industrial process control, or commercial washers, it's necessary to sense the level of a liquid. In this case, the sensor and ground plates can be situated next to each other, as shown in Fig. 4b, resulting in a configuration with high sensitivity along the vertical access.
As the liquid level varies, it changes the dielectric value and hence the capacitance. This sensor configuration makes use of fringe field lines; thus, the capacitance calculations are more complicated than in the case of a simple plate.
With the following figure, we guess single-end configuration can be shown as left (Isolated Sensor) and differential is as right (Parallel Fingers).
https://tinyurl.com/y3zw73pg