Produkt-Neuheit

Wireless telemetry for rotating measurement points – and integrated automotive driveshaft torque sensor systems

With the ME PTP telemetry module, Melectric Systems GmbH expands its portfolio with a compact, rugged and easy-to-integrate telemetry solution for wireless data acquisition—available either as a radio set (2.4 GHz) or as an inductive near-field transmission including inductive power supply. As an application example, the ME DST Modules are presented: integrated torque sensor systems for automotive driveshafts that combine telemetry and rotor electronics in one system.

ME PTP Telemetry Module

The ME PTP telemetry module is designed as a wireless transmission platform for torque measurement as well as general sensor signals, enabling reliable and secure data acquisition at high sampling rates. This makes the system suitable for use on test benches, in field measurements, and for industrial monitoring tasks—especially wherever cabling is difficult, prone to interference, or mechanically impractical.

Two variants are available for different use cases:

Radio telemetry: battery-powered, with ranges of up to 20 meters; antenna connection via SMA.

Inductive telemetry: transmission via a near-field link, with inductive power supply as well. This enables continuous measurements without battery handling, typically with a stator–rotor gap of about 10 mm.

Technically, transmission is based on a proprietary 2.4 GHz signal protocol and supports sampling rates of up to 10 kHz. One channel is provided as standard; depending on variant and options, multi-channel setups up to 6 channels are possible.

The rotor electronics are compact (approx. 40 × 30 mm) and designed for harsh environments; depending on configuration, protection ratings up to IP65/67 can be achieved.

A special focus is placed on easy operation and integration. The system provides a browser-based web interface via an integrated Wi-Fi access point. Live data can be visualized, settings configured, and system information accessed.

For integration into existing measurement and automation environments, the ME PTP telemetry module offers practical output interfaces, including:

Analog outputs (e.g. 0–5 V, 0–10 V, ±5 V, ±10 V, 4–20 mA and additional ranges)

CAN bus, with flexible configuration of message ID, bitrate, DLC, transmission frequency and payload

During operation, typical functions include a status dashboard, a live data view with an auto-scrolling chart (including pause/resume and clear), as well as configuration pages for sampling rate, channel parameters and output modes. Calibration can be performed conveniently via “Capture Zero” and “Capture Span”, with the gain calculated automatically.

Typical applications include test benches (torque/strain measurement, calibrations, endurance tests), field measurements with mobile radio setups, and industrial condition monitoring of machines and drives. The platform is also suitable for wireless transmission of strain gauge bridge signals (SG) and other sensor signals when rotation or motion makes cabling difficult.

ME DST Modules
Automotive Driveshaft Torque Sensor Systems

The ME DST Modules are integrated torque sensor systems for automotive driveshafts. They combine rotor electronics and telemetry transmission into a compact unit that can be used both on test benches and in vehicles. The focus is on robust mounting, serviceability and flexible integration options—especially for applications where torque values must be captured reliably and with high dynamics.

The scope of supply includes the mounted rotor module, an antenna, a cable extension and an amplifier box.

Functionally, the ME DST Modules feature integrated battery management for PTP radio telemetry. One measurement channel is provided as standard; multi-channel measurement is optional or available upon request. Depending on project requirements, different enclosure designs or housing variants can also be realized.

The ME DST Modules use the PTP telemetry platform either as a radio or inductive solution. Key specifications include transmission around 2.4 GHz, a proprietary signal protocol, sampling rates up to 10 kHz, and—in the radio variant—ranges up to 20 m. Power supply is 9–30 V; current consumption of the radio variant is below 100 mA. Temperature ranges (battery-dependent) are typically −20 to 70 °C for radio and −40 to 110 °C for the inductive version. Depending on configuration, protection ratings up to IP65/67 can be achieved here as well.

In application, the ME DST Modules are particularly suited for powertrain and efficiency tests, where driveshaft torque is measured to validate losses and efficiency. They are also ideal for endurance and load testing, where torque and temperature values are monitored continuously. For vehicle testing, the radio variant enables flexible setups, while the inductive version is especially advantageous in test bench environments due to continuous operation without battery replacement.

For system integration, ME DST also provides analog and CAN outputs. Analog output modes include voltage and current ranges such as 0–5 V, 0–10 V, ±5 V, ±10 V, 4–20 mA, as well as additional current ranges. For CAN output, message ID, bitrate, DLC, transmission frequency and payload layout can be configured; torque and temperature values are typically scaled in CAN messages by factors of 10 and 100, respectively.

Experience the ME PTP Telemetry Module & ME DST Modules

Discover the capabilities of these telemetry systems and see their versatility and performance for yourself. For further information, we will be happy to assist you—contact us or visit us at Sensor + Test 2026.