Active Strain Transducer
What is an active strain transducer?
An active strain transducer is a sensor device that actively measures and monitors mechanical strain or deformation in a material and converts it into an electrical signal for analysis or control purposes.
SLB700A/06VA Active Strain Transducer
The SLB700A/06VA Active Strain Transducer from HBM is a budget-friendly sensor equipped with built-in electronics designed to measure extremely high forces. This transducer can be easily attached to structures using screws. When force is applied to the structure, the SLB700A/06VA accurately detects the resulting strain. Typically, strain is directly proportional to force, making it possible to measure applied force when appropriate calibration is performed. This technique is often referred to as “measurement in the force shunt.”
Compared to its passive counterpart, the SLB700A, the active SLB700A/06VA maintains the same level of durability but is more cost-effective due to its integrated measuring amplifier. This cost-effective sensor excels at reliably measuring even exceptionally large forces without affecting the dynamics of the machinery.
The setup process for the electronics in the SLB700A/06VA is straightforward. It involves taking measurements at the maximum force and at zero force. The output signal is then scaled between these two points. Regardless of the strain level, the maximum possible signal is transmitted to the next stage in the measurement chain (as explained below).
Additionally, the materials used in the sensor are resistant to most oils commonly used in applications involving presses, and they are also rustproof.
PRACTICAL
- Simple installation is facilitated by using four M6 screws.
- The cable is both oil-resistant and highly flexible, making it suitable for use in drag chains.
- It's worth noting that this product is compatible with the version that lacks an amplifier. These two versions are interchangeable because they share identical dimensions and hole patterns.
- A verified track record in production environments spanning several years makes it easy to retrofit machines. This ease of retrofitting is possible because active and passive strain sensors are fully compatible.
Cost-effective
- An affordable option that offers an alternative to force sensors, especially when dealing with substantial process forces.
- The performance of the machine remains unchanged.
- It boasts an exceptionally cost-effective measurement setup, thanks in part to the built-in bridge amplifier.
- Calibration is a straightforward process, thanks to the HBM teach-in procedure.
- Remarkably affordable: Allows for the measurement of very substantial forces, even when working with limited financial resources. No extra electronic components are needed. The teaching process ensures an ideal level of precision.
All-inclusive
- HBM also offers sensors that can be used to fine-tune the SLB700A/06VA.
- Our service team is eager to assist you with the calibration of your measurement setup.
- You can request a cost-effective, fully-prepared measurement solution that's ready to use.
Quick Sensor Calibration: Here's How It's Done:
Unlike our SLB700A/06VA strain sensor, many other strain sensors on the market come with fixed amplification settings. For instance, they might produce a 10 V output signal when subjected to a strain of 500 µm/m. The drawback here is that the maximum output signal is tied to this fixed amplification, and it cannot be adjusted. So, if you apply a strain of 200 µm/m, you’ll get a reduced output voltage of 4 V. This can lead to unsatisfactory results, especially when you connect the sensor to a module with low resolution or increased noise, often chosen for cost-saving reasons.
HBM’s SLB700A/06VA strain sensors with integrated amplifier electronics offer a solution to this problem. These sensors provide the maximum possible output signal at all times, regardless of your specific application.
To achieve this, HBM has developed a very simple "teach-in procedure."
1
- Start by installing the sensor as you normally would, and make sure there is no weight or pressure on the machine (like a press, roll stand, or silo). Send a longer pulse to the teach-in input, which helps the electronics remember the zero point.
2
- Next, apply the maximum load that the machine can handle. Send a shorter pulse to the teach-in input this time. This step allows the electronics to adjust itself based on these two reference points.
3
- By following these steps, you ensure that the sensor can utilize the entire input range effectively for future measurements.
Additional benefits include:
- A safety buffer of 10% is maintained in both the upper and lower regions of the measurement range. This ensures that higher strain signals, such as those occurring during equipment failures, are amplified and transmitted accurately.
- The system's characteristic curve can accommodate negative values, allowing it to convert both elongation and shortening into a positive signal, providing flexibility in measuring various types of deformations.
- The integrated measuring amplifier delivers a high-quality performance with low noise and a wide bandwidth of 2 kHz, ensuring accurate and reliable data acquisition.
- To maintain accuracy, it's crucial to permanently record the span, which represents the difference between the minimum and maximum values. Therefore, it's imperative to reset the system to zero after a power outage to ensure precise measurements.
Download the CAD step files for this product
Product Literature
Data Sheets
English
Mounting Instructions
French, German, English
Declaration of Conformity
Multilanguage
Download the CAD step files for this product
Product Literature
Data Sheets
English
Mounting Instructions
French, German, English
Declaration of Conformity
Multilanguage
