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Nanjing Zhongke Astronomical Encoder (Nanjing Hengtong Electromechanical Engineering Co., Ltd.)
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Nanjing Zhongke Astronomical Encoder (Nanjing Hengtong Electromechanical Engineering Co., Ltd.)

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Functional characteristics of variable frequency dual digital force measuring instrument
Date: 2025-09-02Read: 20
The variable frequency dual digital display force measuring instrument is a precision force measuring device that combines variable frequency speed regulation technology with dual digital display function. Its functional characteristics include high-precision measurement, dynamic control, data visualization, and intelligent operation, as follows:

1、 Core functions

  1. High precision force measurement
    • Microcomputer dual digital display systemUsing AT89C52 microcontroller or similar high-performance processors, synchronous acquisition and processing of force value (sensor analog quantity) and length (encoder digital quantity) are achieved, with measurement accuracy usually better than ± 1% FS (full range), and some models can reach ± 0.1% FS.
    • Multi range coverageSupports wide range measurement from 0.1N to 5000kN, with a resolution accuracy of up to 0.1N (2500N range) or 1N (1T range), meeting the testing needs of small to large forces.
    • Free switching of unitsProvide multiple units such as Newton (N), kilogram force (kgf), kilonewtons (kN), pound force (lbf), etc., to adapt to different industry standards.
  2. Variable frequency speed control
    • Horizontal beam lifting speed regulationBy driving the motor with an imported frequency converter, the test speed can be infinitely adjusted (such as 5-500mm/min) to ensure the smoothness and controllability of stretching, compression, and other tests.
    • Dynamic response optimizationVariable frequency technology reduces mechanical impact, extends equipment life, and improves position control accuracy at low speeds, making it suitable for high-precision material testing.
  3. Dual digital display for intuitive display
    • Split screen display of upper and lower windowsThe upper window displays real-time force values, while the lower window displays deformation (length), velocity, or test curves to avoid data switching operations and improve testing efficiency.
    • High brightness LED/LCD screenSupport backlight adjustment and 180 ° flip display to adapt to different lighting environments and observation angles.

2、 Intelligent functions

  1. Automatic data processing and storage
    • Experimental curve generationReal time drawing of force deformation and force time curves, supporting curve scaling and keypoint annotation, assisting in material performance analysis.
    • Data storage and exportThe built-in memory can store more than 100 sets of test reports (including peak, valley, average, etc.), support USB or RS-232 interface to export data to the computer, and generate Excel or Word format reports.
    • Test report traceabilitySave test curves and raw data for quality traceability and review.
  2. Automation Control and Protection
    • Automatic return and correctionAfter the experiment is completed, the crossbeam automatically returns to its initial position, and the zero point of the support force value is automatically corrected to reduce human error.
    • Automatic shutdown due to fractureWhen the sample breaks, the system immediately stops loading and records the fracture force value to prevent equipment overload damage.
    • Limit protectionEquipped with dual protection of mechanical and electronic limits to prevent the crossbeam from exceeding its travel distance.
  3. User defined settings
    • Test parameter presetSupport preset parameters such as test speed, force range, sampling frequency, etc., simplifying repetitive test operations.
    • Alarm threshold settingAlarm for upper and lower limits of force can be set. When the measured value exceeds the range, the buzzer will synchronize with the display screen to prompt.
    • Automatic shutdown without operationSupport timed automatic shutdown function, reduce energy consumption and extend device lifespan.

3、 Extended functionality

  1. Multi interface compatibility
    • Sensor ExpansionSupport external force sensors with different ranges (such as column, spoke, S-type) to adapt to different testing scenarios.
    • Machine and fixture adaptationIt can be upgraded with equipment such as pendulum type tensile machines and universal testing machines to enhance the intelligence level of existing equipment.
    • Software linkageRealize functions such as unlimited data storage, dynamic curve analysis, and multi device networking control through supporting testing software.
  2. Environmental adaptability optimization
    • Wide temperature working rangeThe working temperature covers 0-45 ℃, and the storage and transportation temperature reaches -10-+50 ℃, suitable for on-site testing under different climatic conditions.
    • Anti interference designUsing shielded cables and filtering circuits to reduce the impact of electromagnetic interference on measurement signals and ensure data stability.
  3. Portability and Durability
    • Compact structural designCompact size (such as 250 × 100 × 210mm), light weight (less than 3kg), easy to carry for on-site testing.
    • high-strength casingAdopting metal or engineering plastic shell, it has shockproof and dustproof functions, suitable for industrial environment use.