Force Sensor

Touch sensor that detects the inputting force and
enables fine input control

Nissha Force Sensor

The slim force sensor developed by Nissha, used in combination with touch panels, creates an innovative user interface that detects the inputting force.
The next generation of Force Sensor promises broad use in various industries. Applications are as diverse as ideas. For instance, settings can be configured to adjust the zoom rate of images according to the inputting force applied to the screen, contributing to more comfortable and streamlined inputting.

Force sensor

Key Features

  • Slim (100 µm or less for the sensor alone)
  • Pressure detection starting at under 10 g
  • Requires no special IC for force sensor control

Structure and Mechanism

Nissha Force Sensor

Structure
Consists of two sheets, an upper sheet with pressure-sensitive ink (a material in which the contact resistance value changes greatly with pressure) and a lower sheet with two electrodes.

Mechanism
When the sensor is pressed, it measures the changes in the contact resistance value between upper and lower sheets to detect the inputting force.

Multi Force Sensor

Nissha Force Sensor

Drawing on its technology and track record in resistive-type touch panels, Nissha further developed pressure-sensitive ink and optimized the production process to complete this high-performance, high-durability proprietary sensor.

Multi Force Sensor further responds to pressure applied simultaneously to multiple points. By recognizing changes in position, pressure, and area, it enables subtle input control and can reproduce even calligraphy-style brushstrokes.

Key Features

  • Multi-touch, multi-pressure detection of up to 10 points
  • Any pen and finger are available for inputting
  • Possible to input with a pen even when a hand touches a screen (palm rejection)
  • Z axis identification for adding new functions not possible with only X/Y coordinate identification
  • Support for mass production of high performance, high durability products
  • Transparent multi force sensor is available. (Fine Touch Z)
  • IC interface: I2C, SPI, USB

Structure and Mechanism

Structure
A pair of electrodes is mounted on two sheets of film, upper and lower. Pressure-sensitive ink is then printed on the electrodes, and the sheets are aligned so that the electrodes form a matrix.

Mechanism
When the upper film is pressed by finger or with a pen, the pair of electrodes makes contact and conducts an electric current. The location of the current in the matrix is read to identify the position. Changes in the contact resistance value of the upper and lower electrodes are read through the pressure-sensitive ink layer to detect the inputting force.
Drawing on our technology and track record acquired in Resistive-type touch sensor, we further developed pressure-sensitive ink (a material in which the contact resistance value changes greatly with pressure) and optimized the production process to complete this high performance, high durability proprietary sensor.

Multi Force Sensor Applied Products

Force Map Monitoring Kit (Under development)

The Force Map Monitoring Kit measures the surface pressure distribution of an object placed on the Force Sensor and displays the results on a monitor. Comprising a compact monitor requiring no power cable and a Force Sensor, the product is portable for use anywhere and enables quantitative analysis with only simple operation, and may be used for controlling machinery with various pressure mechanisms. Available in three types of sensor designed for different uses. Expected applications include measurement and analysis in factories, and inventory control through placement on the shelves of unmanned stores.


Key Features

●Portable system
Instant measurement simply by connecting the sensor with the compact monitor attached. The battery-driven system requires no power cable.

●Smartphone or tablet monitoring
Built-in Bluetooth® function enables connection with a smartphone or tablet for monitoring measurements.

●High definition, high resolution
0.2 mm pitch high-definition, maximum 12,800 point* high-resolution sensor enables detailed, accurate measurement
* Measurement display UI is subject to change.

Gait Track, Load Distribution and COP Visualizer (Under development)

The Gait Track, Load Distribution and COP Visualizer is a mat-type product dedicated to gait analysis. Mats can be joined for 10 meters or more of gait measurement and used to analyze foot angle, stride length, and speed of walking. Applications include training support at fitness clubs, and gait training at long-term care facilities.


Key Features

  • Length adjustable according to purpose and installation space
  • Simultaneous measurement of load distribution and center of gravity
  • Slim and lightweight for easy handling

Shear Force Sensor (Under development)

The Shear Force Sensor is designed for friction analysis. The product can provide accurate measurements, for example, of the force on the tire when a vehicle starts moving, and the force on the shoe upon lift-off when running.



Key Features

  • Simultaneous measurement of X and Y force components in addition to Z direction load components
  • Surface distribution measurement not possible with conventional three-axis force sensors
  • Real-time monitoring

Inquiry

Please feel free to contact us.

Nissha Co., Ltd. 
Devices Business Unit

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