Hangkai HKVT-M3A Three-Axis Fingertip Tactile Sensor, I2C, 10N / 20N
Hangkai HKVT-M3A Three-Axis Fingertip Tactile Sensor, I2C, 10N / 20N
Hangkai Microelectronic
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The Hangkai Microelectronic HKVT-M3A is a compact three-axis fingertip tactile sensor for contact-force feedback in robotic fingers, dexterous hands and experimental grippers. It measures Fx, Fy and Fz through a rubber contact surface, with I²C output and integrated signal electronics. The supplier specifies a sensor mass of just 2.8g and a 200Hz sampling rate.
Choose Your Package
| Configuration | Included |
|---|---|
| M3A Sensor Only — I2C | 1 × HKVT-M3A sensor; acquisition board not included |
| I2C-to-USB Board Only | 1 × acquisition board; sensor not included |
| M3A Sensor + USB Board | 1 × sensor and 1 × acquisition board |
| M3A Sensors — 5 Pack | 5 × sensors; acquisition boards not included |
| M3A Sensor + USB Board — 5 Sets | 5 × sensors and 5 × acquisition boards |
The USB acquisition board bridges the sensor's I²C interface to a PC. It is included only in packages explicitly listing a board. Cables, mounting hardware and a complete robot hand are not specified as included.
Three-axis Force Measurement
Separate Fx and Fy channels measure lateral forces up to 10N each; Fz is rated at 20N. The three channels provide directional contact-force feedback for grasping and manipulation projects. These ratings describe the sensor's measurement range, not an allowable robot payload or lifting capacity.
Specifications
| Model | HKVT-M3A, HKVT-M3 series |
|---|---|
| Measured force axes | Fx, Fy and Fz |
| Fx range | 10 N |
| Fy range | 10 N |
| Fz range | 20 N |
| Resolution | 0.5% FS |
| Accuracy | 2% FS |
| Overload level | 400% FS, supplier specification |
| Sampling rate | 200 Hz |
| Supply voltage | 2.5–3.3 VDC |
| Operating current | <2 mA, sensor specification |
| Interface | I²C peripheral (slave); address configuration advertised |
| Sensor mass | 2.8 g per sensor |
| Contact surface | Rubber |
| Operating temperature | −20 to 85°C, supplier specification |
| Operating humidity | 0–95% RH, supplier specification |
| Color | Black as pictured; supplier advertises customization, not a selectable color option here |
FS means full scale. The source does not state a signed ± convention for the ranges or provide dimensions, a connector pinout, I²C addresses, protocol documentation or an ingress-protection rating. Confirm these integration details before installation. The voltage and current values above apply to the sensor; the acquisition board's electrical limits are not specified.
Contact Surface and Integration
- A shaped rubber surface provides the contact interface for fingertip sensing.
- A two-hole mounting tab is shown for fixture integration; verify the mounting dimensions for your robotic finger.
- The supplier describes a selected rubber formulation, vacuum-potted construction, good linearity, durability and sensitive response.
- Use the sensor's I²C output with a compatible host, or select a package with the I²C-to-USB acquisition board for PC connection.
- For multiple sensors, confirm address assignment, bus loading, wiring and host support rather than assuming any five units operate together without configuration.
PC Measurement Software
The illustrated software provides live Fx/Fy/Fz readouts, force-direction displays, force-versus-time curves and data export, together with address and sampling controls. The screenshot shows example UI values; the sensor specification remains 200Hz, and the screenshot does not establish support for a 1000Hz operating mode. Confirm software availability, operating-system compatibility and communication documentation for your setup.
Supplier Performance Notes
The supplier advertises 2× durability, an 80% improvement in signal stability and a 50% improvement in sensitivity using its laboratory data. The comparison baseline and test method are not supplied, so these are supplier comparison claims rather than independently verified performance guarantees. The source also describes 50 manufacturing-detail steps; this is not a service-life or actuation-cycle rating. Custom orders with a minimum quantity and the honor-certificate display are excluded from this listing's purchase options.
Visual Details
