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Two-dimensional force sensor

Release Time:

2025-11-01

Compared to single-axis force sensors, 2D force sensors not only need to address the monotonicity and consistency issues related to sensitivity for the measured force components, but also tackle inter-axis (cross-axis) interference caused by structural fabrication and process errors, as well as challenges in static and dynamic calibration. Additionally, they require solutions for decoupling algorithms and circuit implementations used in vector calculations. We have thoroughly resolved key scientific challenges in 2D force sensor research, such as the structural design of elastic elements, mechanical performance evaluation, and advanced vector decoupling algorithms. Moreover, we have mastered the core manufacturing technologies and now possess the capability to design and fabricate devices ranging from macro-scale mechanics to micro-mechanical systems.

A 2D force sensor refers to a type of force sensor capable of simultaneously measuring torque components in three directions. In the Cartesian coordinate system, both forces and torques can be individually resolved into three components. This kind of sensor is designed to measure three force components and three torque components at the same time. Currently, the multi-dimensional force sensors widely used today are precisely this type of sensor.

A 2D force sensor can detect changes in force values along the X, Y, and Z axes, outputting three sets of voltage signals. A multi-axis force sensor, on the other hand, is capable of simultaneously measuring force and torque components in two or more directions. It is widely used in applications such as robotic fingertips and grippers, robotic surgical research, finger-force studies, dental research, force feedback systems, brake testing, precision assembly and machining, rehabilitation studies, plastic surgery research, product testing, haptic feedback, and teaching-learning processes. This technology spans across industries including robotics, automotive manufacturing, automated production line assembly, biomechanics, aerospace, and light textile industries.

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How does the multi-dimensional force sensor enhance calibration efficiency?

Typically, a Design Of Experiment (DOE) is employed to generate a scientifically sound load table, while Regression Analysis (RA) is used to establish the functional relationships between dependent and independent variables. Ultimately, the calibration matrix obtained depends heavily on both the load table and the regression analysis method applied. Established force measurement laboratories usually have their own standardized procedures for acquiring and processing this data—though sometimes the individuals directly involved in calibration work may not even be fully aware of the underlying data calculation processes driving the calibration workflow.

2025-11-05

Three-Dimensional Force Sensor Calibration Data Processing Method

To simultaneously measure multi-component forces and torques, a multidimensional force sensor is required, which inevitably demands calibration before use—otherwise, the conversion from electrical signals to physical force values cannot be accurately achieved.

2025-11-05

Calibration Method for Six-Dimensional Force Sensors

Calibration of multi-component force sensors aims to establish the relationship between the signal and the applied force. The calibration process can be expressed as a quadratic polynomial. Interestingly, this representation differs slightly from what’s typically found in domestic textbooks—where we usually place the force F on the left side of the equation. From the perspective of the calibration procedure, however, this arrangement seems more logical, since it reflects applying a specific force and subsequently measuring the corresponding signal.

2025-11-05

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Nanjing Bio-inspired Intelligence Technology Co., Ltd.

南京神源生智能科技有限公司

Tel: 02587793282-8003 18061654911

E-mail: sales@nbit6d.com

Address: H3 Building, 509 Chengxin Avenue, Jiangning District, Nanjing City, Jiangsu Province

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