ESMSNJ03B mv signal output alloy steel Double Flanged Static Torque Sensor
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


Technical Specifications
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ESMSNJ03B static torque sensor |
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Range |
0-5000 N.m |
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Sensitivity |
0.5~ 2.0mv/V |
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Comprehensive precision |
0.1 %F·S |
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Creep |
±0.05 %F·S/30min |
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Nonlinear |
±0.1 %F·S |
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Hysteresis error |
±0.1 %F·S |
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Repeatability error |
±0.1 %F·S |
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Zero temperature coefficient |
±0.2 %F·S/10℃ |
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Output temperature coefficient |
±0.2 %F·S/10℃ |
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input resistance |
725 ± 25 Ω |
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Output impedance |
700 ± 1 Ω |
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Insulation resistance |
≥ 500 MΩ |
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Excitation voltage |
9 ~ 15 VDC |
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range of working temperature |
-20 ~ 60℃ |
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Allow overload |
150 %F·S |
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Sealing level |
IP67 |
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Material |
alloy steel |












