Smart Flexible Thin Film Pressure Sensor MD30-60 Electronic Medical
Instrument
Description
MD30-60 series flexible thin film pressure sensor is a new type of
sensor with independent intellectual property rights of flexible
pressure sensor technology. It is printed on flexible thin material
with strong adhesion, bending resistance and high sensitivity of
flexible Nano functional materials, so as to achieve high
sensitivity of pressure detection.
The thin film pressure sensor is a resistive sensor. The output
resistance decreases as the pressure applied to the surface of the
sensor increases. The pressure can be measured through a specific
pressure-resistance relationship. It can be widely used in pressure
perception, human-computer interaction, intelligent robots,
electronic medical equipment, wearable devices, physiological
health detection and other fields. For example, it is used to trigger and detect the pedal of a balance car, to detect
cardiopulmonary resuscitation, and to detect pressure in other
scenarios.
Features
Ø Ultra-thin,thickness less than 0.6mm
Ø Low power consumption and excellent stability
Ø Quick response
Ø High sensitivity and wide detection range
Ø Simple detection scheme, easy to integrate
Ø Different size and shape sensors can be customized
Ø Passed RoHS Authentication
Product parameters
| Logo | Size(mm) |
| Length | 66.3 |
| Width | 30 |
| Sensitive area | φ25 |
| Pin pitch | 2.54 |
| Tolerance | 0.2 |
Performance Index
| Model | MD30-60@10kg | MD30-60@20kg | MD30-60@30kg | MD30-60@50kg |
| Range | 0~10kg | 0~20kg | 0~30kg | 0~50kg |
| Thickness | ≤0.4mm | ≤0.6mm |
| Dimension | See specification and size description |
| Response pointnote1 | ≤0.2kg | ≤0.5kg |
| Repeatability | ±3%(50%loaded) |
| Consistencynote2 | ±10%(Batch of the same model) |
| Hysteresis | ﹢10% (RF+ - RF-)/RF+ |
| Durability | ＞One million times |
| Initial Resistance | ＞10MΩ(Non-Loaded) |
| Response Time | ＜ 1ms |
| Resume Time | ＜ 15ms |
| Test Voltage | Typical Value DC 3.3V |
| Operating Temperature | -20°C ～ 60°C |
| EMI | No produce |
| ESD | Insensitivity |
Data reference sheet
Model: MD30-60@10kg | Model: MD30-60@20kg | Model: MD30-60@30kg | Model: MD30-60@50kg | |
| pressure/kg | resistance/kΩ | pressure/kg | resistance/kΩ | pressure/kg | resistance/kΩ | pressure/kg | resistance/kΩ |
| 1 | 8.41 | 2 | 5.31 | 3 | 12.74 | 5 | 8.06 |
| 2 | 4.89 | 3 | 2.65 | 6 | 6.38 | 10 | 4.45 |
| 3 | 3.38 | 5 | 1.97 | 9 | 4.34 | 15 | 3.34 |
| 4 | 2.73 | 7 | 1.59 | 12 | 3.54 | 20 | 2.79 |
| 5 | 2.30 | 9 | 1.40 | 15 | 3.08 | 25 | 2.44 |
| 6 | 2.08 | 10 | 1.26 | 18 | 2.78 | 30 | 2.19 |
| 7 | 1.78 | 13 | 1.18 | 21 | 2.53 | 35 | 2.01 |
| 8 | 1.61 | 15 | 1.13 | 24 | 2.37 | 40 | 1.87 |
| 9 | 1.49 | 17 | 1.08 | 27 | 2.22 | 45 | 1.77 |
| 10 | 1.40 | 20 | 1.05 | 30 | 2.12 | 50 | 1.69 |
Reference Circuit
Instructions
- MD30-60 series flexible sensor is a non-polar component, there is
no directionality in the circuit;
- When using, please place the pressure sensitive zone of the sensor
on a firm, flat surface. Using the sensor on a curved or irregular
surface will make the sensor initially conductive, that is, in a
"response" state when there is no pressure; in this state, the
sensor output resistance can still respond to pressure changes, and
the corresponding relationship is no longer applicable to the
reference data sheet;
- If the supporting surface and the force applying surface are both
rigid and hard surfaces, and the contact surface is larger than the
sensitive area of the sensor, due to the sensor's own structure,
the pressure response may be small and unstable. A round soft
rubber pad needs to be affixed to the center of the sensitive area,
the diameter is slightly smaller than the sensitive area, and the
area should be greater than 60% of the area of the sensitive area;
- You can use double-sided tape to fix the sensor on the supporting
surface. Pay attention that the supporting surface is tidy and
clean before pasting. It is recommended to use 3M brand
double-sided tape; provide customized services;
- After the sensor is stressed and maintains the pressure, the output
resistance value will drift slightly over time, usually within 5%.
This error can be reduced by the method of timing calibration. In
the calibration operation, the waiting time after applying pressure
is consistent with the waiting time in actual applications. Since
the force state of the sensor is different in different application
scenarios, it is recommended that the user arrange the sensor
according to the actual application scenario and test the drift
parameters by themselves.
Announcements
- When using the sensor, try to make the load received evenly and
avoid direct contact with the sensor by sharp objects;
- Over-range use will reduce the performance of the sensor or even
destroy the sensor;
- The sensor terminal is made of copper and tin-plated material, and
the lead can be weldedaccording to the needs. It should be noted
that the soldering temperature should not be too high, it is
recommended that it should not exceed 300°C, and the contact time
should not exceed 1 second, so as to prevent the high temperature
from melting and deforming the film substrate.
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