Tension Measuring Systems

Measuring principle of tension measuring systems:

3-Roller Measuring System: Consisting of two outer guide rollers and a middle measuring roller. The tension of the measured material slightly deflects the middle roller. This deflection (up to 0.5 mm) is measured by a load cell. The built-in amplifier generates an analog output signal, which is proportional to the measured tension.

1-Roller Measuring System: In combination with 2 outer reference guiding points (deflection pulley) the sensor builds a force triangle. The angle of contact has to be stable. The sensor uses a load cell with strain gauge and supplies a output signal in mV or V (with integrated amplifier).

SCHMIDT Online-sensors and display units:

For the continuous measurement of the running line tensions of threads and yarns, wires, cables, optic and carbon fibers and similar materials, SCHMIDT offers a wide variety of sensors using different guide rollers and front plate dimensions.
different roller types for tension meters

Depending on the application, SCHMIDT tension measuring systems can be supplied alone or as a part of a complete system:

  1. Tension Sensor 3-Roller Sensor Only

    for use with customer supplied closed loop control units

    for use with customer supplied display units

    for use with customer supplied regulated DC power source

    Most suitable for customer signal processing, e. g. close loop control

    Output signals of a tension sensorOutput Signal:

    • analog signal 0 – 1 V (standard)
    • analog signal 0 – 10 V (optional)
    • current 4 – 20 mA (optional)
    • mV/V (optional)
    • digitale interface USB, RS-232, RS-422 or Wi-Fi (optional)

    Sensors with USB, RS-232, RS-422 or Wi-Fi interface can be connected to a PC without problems.


    Software (accessory):
    »Tension Inspect 3«
    (WIN 7 and higher)
    Schmidt tension sensors can be mounted online for continuous tension monitoring. The sensor can be connected to a PC using the USB, RS-232, RS-422 or Wi-Fi (optional) output.
    With the program »Tension Inspect 3« the tension reading of max. 24 FS sensors can be transferred to a PC. All data is stored in an EXCEL file (.xls).

    Main features

    Real-time reading

    The readings are also shown in a X-Y- diagram (time/date-tension)

    For data analysing the buffered diagram can be zoomed and scaled

    Recording of the buffered readings as CSV-file (on user request)

  2. Complete Tension Measuring Systems 3-Roller Only

    Consisting of tension sensor and display unit:

    Tension sensor TS1 with display unit SCD-1This configuration is recommended t users who want to see the value at the measuring point and optional want signal processing, e. g. a loop control system

  3. Tension Measuring System 1-Roller Sensor Only

    Installation at an existing reversing point

    With or without integrated amplifier

    Available with or without Schmidt guide roller

    Most suitable for customer signal processing e. g. close loop control
    Single roller sensor with output signals