Built to withstand the test of time, the SF 45-65 flexible film pressure sensor has successfully surpassed rigorous testing, enduring over 1 million cycles while maintaining its exceptional performance.
With its innovative design, the DS-CHS-V2.3 ensures accurate pressure detection by establishing a distinct pressure-resistance relationship. As pressure is applied to the sensor’s surface, its resistance decreases, allowing for precise and reliable measurements.
| Product Dimensions | |
| Length | 70 mm |
| Width | 50 mm |
| Pin Pitch | 2.54 |
| Tolerance | 0.2 |
| Sensitivity Area | 46 x 46 mm |
| Performance Index | |
| Range | 0-5 kg |
| Thickness | <0.4 mm |
| Response Point | <30 g |
| Repeatability | <+5% (50% loaded) |
| Consistency | +15% Batch of the same model |
| Hysteresis | +10% (RF+ – RF-)/RF+ |
| Durability | >1 million times |
| Initial Resistance | >10M (Non-Loaded) |
| Response Time | <1 ms |
| Resume Time | <15 ms |
| Test Voltage | Typical Value DC 3.3V |
| Operating Temperature | -20°C-60°C |
| EMI | Nothing Produced |
| ESD | Not Sensitive |
Notes:
- While there may be minor differences between device batches, our calibration process using the program algorithm effectively addresses these variations. This calibration greatly reduces any inconsistencies, guaranteeing precise and reliable performance across a wide range of applications.
- The sensor’s response point is established when the pressure begins to rise from 0, and the resistance drops below 1MΩ. This indicates that the sensor is actively detecting and responding to the applied pressure, resulting in accurate and precise measurements.
Flexible Thin Film Pressure Sensor SF 45-65
From smart home systems to consumer electronics, automotive electronics to medical equipment, industrial control to smart robots, the SF45-65 finds its place in various fields. Its reliable performance and compatibility with flexible surfaces make it a valuable asset for enhancing pressure measurement accuracy in different industries.
Designed with a square sensitive area measuring 46*46mm, the SF45-65 sensor is equipped to measure pressures up to 5kg with accurate measurement capabilities. As pressure is applied to the sensor’s surface, the output resistance decreases, providing accurate pressure readings through a specific pressure-resistance relationship.
Experience the efficiency and precision of the SF45-65 flexible film pressure sensor, as it enables advanced pressure monitoring in diverse applications, ensuring optimal performance and contributing to technological advancements in multiple industries.
The SF 45 – 65 reference circuit utilizes partial pressure measurement. It involves connecting the pressure sensor in series with resistor R1, with one end connected to VCC and the other end connected to GND, forming a basic voltage divider circuit. The voltage obtained from the division is then connected to Vout.
This circuit allows the sensor’s output resistance change, which corresponds to the pressure variation, to be converted into a voltage change signal. To cater to different application requirements, it is recommended to select an appropriate load resistance R1 ranging from 1kΩ to 100kΩ. It is suggested that the load resistance be set to 50% of the range pressure corresponding to the sensor’s resistance value.
Vout can be connected to a single-chip microcontroller’s ADC interface to detect pressure levels. Furthermore, the MCU’s external interrupt IO interface can be utilized as a pressure trigger function.
Instruction for Use:
When using the SF45-65 flexible pressure sensor, it is important to follow these guidelines for optimal performance:
- Place the pressure-sensitive zone of the sensor on a firm, flat surface. Avoid using it on curved or irregular surfaces, as this can cause the sensor to be conductive even without pressure, affecting its response.
- When using the sensor on rigid and hard surfaces where the contact area exceeds the sensitive area, it may result in a small and unstable pressure response. To mitigate this, we recommend attaching a round soft rubber pad to the center of the sensitive area. The pad should have a diameter slightly smaller than the sensitive area, and its surface area should be at least 60% of the sensitive area. This ensures optimal performance and stability during pressure measurements.
- Use double-sided tape to securely fix the pressure sensor on the supporting surface. Ensure that the surface is clean and tidy before applying the tape. We recommend using 3M brand double-sided tape, which provides reliable adhesion.
- Once pressure is applied to the sensor and held, there may be a slight drift in the output resistance value over time, usually within a 5% range. To minimize this error, timing calibration is recommended. During calibration, it is important to match the waiting time after applying pressure with the waiting time in actual applications.
Since the force state of the sensor can vary in different scenarios, we advise users to arrange the sensor according to their specific application needs. Conducting drift parameter testing tailored to their use case will help optimize the sensor’s performance and ensure accurate measurements.
By following these guidelines, you can ensure optimal performance and accuracy when using the SF 45-65 flexible pressure sensor.
