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ESMSNJ03B mv signal output alloy steel Double Flanged Static Torque Sensor

The ESMSNJ03B dual-flange static torque sensor is a high-precision sensing device specifically designed to measure stationary or low-speed rotating shaft torque. Its core structure includes two mounting flanges, which are connected to the power source and the load respectively, with an intermediate elastomer bearing the torsional deformation. When torque is applied, the elastomer generates a slight angular displacement, and the built-in strain gauges convert the deformation into an electrical signal output, thereby accurately measuring the torque value.

This sensor is mainly used in situations requiring long-term stable monitoring of static or quasi-static torque, such as bolt tightening tests, valve opening and closing torque detection, motor stall tests, and material torsion experiments. Due to its dual-flange rigid connection, it has very high resistance to lateral force and bending moment, is easy to install, and has relatively low alignment requirements. Its features include high overload protection, excellent long-term stability, low drift, and good temperature compensation performance, making it an indispensable precision measurement tool in industrial quality control and laboratory research.

    Working Principle

    The ESMSNJ03B static torque sensor is based on the principle of resistive strain. When torque is applied to the sensor, the internal elastic body deforms, and the strain gauges attached to the elastic body also deform, thereby changing their resistance. The Wheatstone bridge composed of the strain gauges converts the resistance change into a voltage signal, which is then amplified, filtered, and converted by the signal processing circuit, ultimately outputting an electrical signal that has a linear relationship with the torque.

    Product Features

      1. Sturdy Structure, Easy Installation
      Double-Flange Rigid Connection: Both ends come with standard flanges, which can be directly rigidly connected via bolts to the power source (such as a motor) and the load (such as a reducer or valve). This design eliminates the need for additional couplings or adapters, simplifying the installation process.
      High Anti-Interference Capability: Due to the rigid support of the flange structure, these sensors typically have very strong resistance to lateral force and bending moment. Even if there is slight misalignment during installation, it will not significantly affect measurement accuracy, protecting the internal strain gauge from damage.
      2. High Accuracy and Stability
      Designed for Static/Quasi-Static Applications: Optimized for stationary or low-speed rotational conditions, it eliminates signal noise and wear issues caused by slip rings or wireless transmission modules in rotating sensors, resulting in minimal zero drift and excellent long-term stability.
      High Linearity and Repeatability: Using high-quality alloy steel elastic elements and precision strain gauges, along with comprehensive temperature compensation technology, it ensures very high linearity and measurement repeatability across the full range (typically ±0.1% F.S. or even higher).
      3. Strong Overload Protection
      Mechanical Limit Design: Most double-flange sensors include an internal mechanical overload protection structure that can withstand substantial instantaneous impact loads or accidental overloads (typically 150%-200% of rated capacity), preventing permanent plastic deformation of the elastic element.
      4. Wide Range of Applications
      First Choice for Non-Rotational Measurements: Especially suitable for applications not requiring continuous high-speed rotation, such as bolt tightening force testing, valve opening/closing torque measurement, motor stall testing, material torsion testing, and brake system testing.
      Environmental Adaptability: Usually equipped with good sealing performance (such as IP65 or higher protection rating), making them suitable for humid, dusty, and other harsh industrial environments.
      5. Diverse Output Signals
      Supports various output types, including standard analog signals (mV/V), voltage/current signals (0-5V, 0-10V, 4-20mA), facilitating integration into various automation control systems or data acquisition instruments.

      Product detail

      ESMSNJ03B (6)ESMSNJ03B (8)ESMLS01-p-2

      Technical Specifications

      ESMSNJ03B static torque sensor

      Range

      0-5000 N.m

      Sensitivity

      0.5~ 2.0mv/V

      Comprehensive precision

      0.1 %F·S

      Creep

      ±0.05 %F·S/30min

      Nonlinear

      ±0.1 %F·S

      Hysteresis error

      ±0.1 %F·S

      Repeatability error

      ±0.1 %F·S

      Zero temperature coefficient

      ±0.2 %F·S/10℃

      Output temperature coefficient

      ±0.2 %F·S/10℃

      input resistance

      725 ± 25 Ω

      Output impedance

      700 ± 1  Ω

      Insulation resistance

      ≥ 500 MΩ

      Excitation voltage

      9 ~ 15 VDC

      range of working temperature

      -20 ~ 60℃

      Allow overload

      150 %F·S

      Sealing level

      IP67

      Material

      alloy steel

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