Round Thin Film Pressure Sensor (แบบขาสั้น เส้นผ่านศูนย์กลาง 7.6mm) RP-C7.6-ST - แท้จาก DFRobot

INTRODUCTION

This is a circular flexible thin film pressure sensor of short legs with a diameter of 7.6mm (RP-C7.6-ST Thin Film Pressure Sensor), which can be used to realize highly sensitive detection of pressure. The sensor is durable and designed to sense static and dynamic pressure in a high respond speed. Its advantages of recording the intensity and frequency of force make it widely used in all kinds of applications, such as, pressure switch, bed monitoring system, intelligent sneaker and medical device system. These sensors are also very easy to use.

RP-C flexible pressure sensor is made of ultra-thin film of excellent mechanical property, excellent conductive materials and nanometre pressure sensitive layers. There are thin film and pressure sensitive layer on the upper layer of the sensor, and thin film and conductive circuit on the lower layer. These two layers are glued together by double sided tape. When outside pressure applies to the active area, the disconnected circuit of the lower layer will be connected through the pressure sensitive layer of the upper layer, by which to convert pressure into resistance. The output resistance decreases as pressure increases.

Sample Code

/***************************************************
* Piezo Vibration Sensor
* ****************************************************
* This example The sensors detect vibration

* @author linfeng(490289303@qq.com)
* @version V1.0
* @date 2016-2-26

* GNU Lesser General Public License.
* See for details.
* All above must be included in any redistribution
* ****************************************************/
#define sensorPin A0
void setup() {
Serial.begin(115200);
}

void loop() {
int x=analogRead(sensorPin);
Serial.println(x);
delay(50);
}

Expected Results

The serial data changes as above when we press the sensor. The serial data decreases linearly as the force increases. We recommend you use the sensor in qualitative measure.

SPECIFICATION

• Thickness: 0.3mm
• Trigger Force: 30g, triggered (default resistance<200kΩ) 
• Pressure Measuring Range: 30g~1.5kg
• Static Pressure & Dynamic Pressure Measurement (within the frequency of 10Hz)
• Initial Resistance: >10MΩ
• Activation Time: <0.01S
• Operating Temperature: -40℃~+85℃ 
• Lifespan: >1million times
• Hysteresis: +10%，(RF+ -RF-)/FR+，1000g Force
• Response Time: <10ms
• EMI: Not generate
• EDS: Not generate
• Drift: <5%, 1Kg Force, Static load 24H 

DOCUMENTS

• Product wiki