Datasheet

3
Document Version: 4.1 tacterion GmbH | Nymphenburger Straße 5 | 80335 Munich | Germany
Date: October 2021 Tel: [phone] | [e-mail] | www.tacterion.com
3. Sensor Characteristics
Device Characteristics
c
Resistive
Hybrid
Notes
Minimal detectable force
d
: 0.5 N cm
-2
0.1 N cm
-2
Measurement range
d
: [0.5, 20] N cm
-2
[0.1, 20] N cm
-2
Overforce tolerance
d
: 1 kN cm
-2
-
Non-actuated resistance: >50 MΩ -
Resistance range
d
:
[1, 5000] kΩ -
Operating voltage range: ≤5 V ≤5 V
Higher voltage capable with
potential reduction of lifetime
Rise time: ≤5 μs -
Measured with drop of steel ball
and recorded with oscilloscope
Single-point repeatability: ±12.2 % ±2.0 %
Variation in response (std. dev. /
mean) for 5000 actuation cycles
at 4 N
Part-to-part repeatability: 9.1 % -
Variation in response (std. dev. /
mean) at 4 N
Durability: >5 M Cycles >5 M Cycles
Indentation with 5 N at a
frequency of 2.5 Hz. Actuation
area of 0.8 cm
2
Static loading: -5.8 % +4.3 %
Change in response after 10 h at
4 N
Hysteresis: 13.3 % 2.9 %
Calculated at 80 % of the full-
scale range
Drift:
<20% log
10
(min) <0.2% log
10
(min)
Average change in response,
calculated for 10 h at 4 N
High temperature storage: +39.8 % -20.5 %
Change in response after 120 h
at 85 °C
Low temperature storage: -31 % -3.2 %
Change in response after 120 h
at -40 °C
High humidity / high temp-
erature storage:
+49.3 % +34.9 %
Change in response after 120 h
at 85 °C and 85 %RH
Thermal shock: -33.6 % -20.3 %
Change in response after 10
cycles [-20 °C to 70 °C]
Temperature sensitivity
e
: +1.10 %/°C +0.34 %/°C
Change in response in the
operating range [-5 °C to 80 °C]
c
Tests were conducted with a cylindrical Nylon (MC901) contact part of 8 mm diameter, resulting in an actuation area of 0.5 cm
2
.
d
Dependent on several factors, such as geometry and readout electronics.
e
Calculated in the stated operating range, operating temperatures outside this range require further characterization.