Summary of ALPS ALPINE DEVELOPS FORCE SENSOR WITH HIGH IMPACT RESISTANCE
Alps Alpine Co., Ltd. has introduced the HSFPAR004A Force Sensor, designed for stylus pens and precision input devices. This sensor combines industry-leading miniaturization with enhanced impact resistance up to 55 N. It offers high linearity and resolution, detecting forces under 0.01 N while maintaining a compact size of 2.00 mm × 1.60 mm × 0.66 mm. Ideal for digital drawing tools and industrial robotics, the device ensures durability against drops and resists external electromagnetic interference, supporting over one million operational cycles.
Parts used in the HSFPAR004A Force Sensor:
- HSFPAR004A Force Sensor
- Stylus pen components
- Actuator diameter (sensing zone)
- Rounded peripheral edge
- Industrial machine grip parts
- Robot arm precision grip mechanisms
Alps Alpine Co., Ltd., a manufacturer of high-quality electronic products, has added the HSFPAR004AForce Sensor to its lineup. The sensor enhances impact resistance while maintaining the industry’s smallest size*1) and offers high linearity and high resolution, which makes it ideal for use in stylus pens and other input devices.
These days, electronic blackboards and tablets are being used on several occasions, such as school sessions and company meetings. Therefore, demand for pen-shaped devices (stylus pen), which are mostly used for the purpose of working creatively – including digital drawing and painting – has been growing. Stylus pens, or styli, contain force sensors that trace the trajectory of the pen tip and then reproduce different thicknesses in the artwork corresponding to the pressure applied. Styli require a sensor with high resolution and linearity, but also need to be sturdy enough to not break when the pen is unintentionally dropped.
The HSFPAR004A lives up to these requirements because it maintains the features of already existing products for high linearity (<2%FS), high resolution (detects micro force with less than 0.01 N), and small size of 2.00 mm × 1.60 mm × 0.66 mm (W×D×H), while at the same time realizing an improvement in impact resistance of up to 55 N. The sensor offers an operating life of 1,000,000 cycles and is resistant to external magnetic and electric fields. Besides its use in input devices, the sensor is suitable for industrial machines handling precision equipment and a range of diverse applications, especially on the grip parts of robot arms for precision grip force adjustments.
Key Features
- High impact resistance proved by a breaking load of 55 N
- Detects micro force of less than 0.01 N
- Long operating life of more than 1 million cycles
- Resistant to external magnetic fields and electric fields
The improved impact resistance of the sensor is achieved with the extension of the actuator diameter of the sensing zone*2) from the existing 0.20 mm to the new 0.40 mm, while at the same time keeping the rounded peripheral edge to disperse impacts. Therefore, the breakage risk of the sensor in stylus pens is reduced in case the pen is unintentionally dropped, while still guaranteeing smooth pen pressure expression without spoiling the easy integration into end products. Mass production has been underway since March.
Read more: ALPS ALPINE DEVELOPS FORCE SENSOR WITH HIGH IMPACT RESISTANCE
- What is the primary application of the HSFPAR004A Force Sensor?
The sensor is ideal for use in stylus pens, other input devices, and industrial machines handling precision equipment. - How does the sensor enhance impact resistance compared to existing products?
It achieves this by extending the actuator diameter of the sensing zone from 0.20 mm to 0.40 mm while keeping a rounded peripheral edge. - Does the sensor maintain a small size despite increased durability?
Yes, it maintains the industry's smallest size of 2.00 mm × 1.60 mm × 0.66 mm. - Can the sensor detect very light pressure?
Yes, it detects micro force with less than 0.01 N resolution. - What is the operating life of the HSFPAR004A sensor?
The sensor offers an operating life of 1,000,000 cycles. - Is the sensor resistant to external interference?
Yes, it is resistant to external magnetic and electric fields. - What is the maximum breaking load the sensor can withstand?
The sensor has a breaking load of 55 N. - Why is high linearity important for stylus pens?
High linearity helps reproduce different thicknesses in artwork corresponding to the pressure applied by the user.
