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Position sensors characteristics comparison
Electret microphone
| Property | Nonlinear |
|---|---|
| Sensitivity(- 46 ± 2.0, ( 0 dB = 1V / Pa ) at 1K Hz) | Nonlinear function |
| Input span (db min ... db max) | |
| Full-scale output(50-10000(Hz)) | |
| Output impedance | |
| Output format | |
| Dynamic |
Capacitive sensors
Touch Switch D5C
D5C sensor is mainly used in the industry.
Figure 1
In figure 1 there is one comparison between DC and AC models. In these pictures is sensitivity when temperature is changing. In these pictures we can see comparison with DC and AC models. AC models are more sensitive but they can change less sensitive when temperature increases.
Below is all the information I could find about D5C sensor.
| Item | DC | AC |
| Model | D5C-1D@0 | D5C-1A@0 |
| Degree of protection | Equivalent to IP67 | |
| Mechanical durability | 10,000,000 operations min. (at rated overtravel value) | |
| Supply voltage (operating voltage) | 12 to 24 VDC (10 to 30 VDC), (ripple: 10% max.) | 100 to 240 VAC (45 to 264 VAC), 50/60 Hz |
| Rated frequency | --- | 50/60 Hz |
| Sensitivity setting range | 30 to 100 pF | |
| Current consumption | 17 mA max. | --- |
| Leakage current (Circuit/Antenna) | ------|1 mA max. | 2 mA max. |1 mA max. |
| Response time | 2 ms max | 8 ms max |
| Output current | 200 mA max. (resistive load) | |
| Insulation resistance | 50 MΩ min. (at 500 VDC) between lead wires and case | |
| Dielectric strength | 1,000 VAC, 50/60 Hz for 1 min between current-carrying metal parts and non-current-carrying metal parts | 2,000 VAC, 50/60 Hz for 1 min |
| Rated insulation voltage (Ui) | 1,000 VAC | |
| Pollution degree (operating environment) | 3 (IEC947-5-1) | |
| Protection against electric shock | Class II | |
| Proof tracking index (PTI) | 175 | |
| Switch category | D (IEC335) | |
| Vibration resistance | 10 to 55 Hz, 1.5-mm double amplitude | |
| Shock resistance | 1,000 m/s2 min. | |
| Ambient temperature | Operating: −25°C to +70°C (with no icing) | |
| Ambient humidity | 35% to 95%RH | |
| Weight | Approx. 110 g (in case of D5C-1DS0) | Approx. 120 g (in case of D5C-1AS0) |