SLB700A/06VA:有电流或电压输出的应变传感器,适用于大力值测量

SLB700A/06VA 是一种集成电子仪表的应变传感器,通过螺钉可很容易地固定在结构上。对结构施加力,SLB700A/06VA可以可靠地测量产生的应变。由于应变通常与力成正比,只要进行相应的校准,应变传感器就可以用来测量施加的力。这一原理也被称为“分力测量”。

SLB700A/06VA 有源应变传感器与无源型(SLB700A)一样坚固,但由于其集成测量放大器,SLB700A/06VA 更具性价比。应变传感器的优点是,能够以可靠的方式测量甚至非常大的力。

Practical

  • Easy mounting using four M6 screws
  • Oil-resistant and a highly flexible cable, suitable for drag chains
  • Compatible with the version without an amplifier; the two versions are interchangeable since they have identical dimensions and hole patterns

Proven for years in production environments: Easy retrofitting of machines is possible due to the full compatibility of active and passive strain sensors.

Cost-effective

  • A cost-effective solution that provides an alternative to force sensors, particularly in cases of involvement of large process forces
  • The machine dynamics remain unaffected
  • Extremely cost-effective measurement chain, particularly due to the integrated bridge amplifier
  • Calibration is easy, owing to the HBM teach-in procedure

Extremely cost-effective; enables extremely large forces to be measured, even on a tight budget. No additional electronics are required. An optimal resolution is guaranteed due to the teach-in procedure.

All-inclusive

  • HBM also provides sensors for the calibration of the SLB700A/06VA
  • Our service staff looks forward to calibrating your measurement chain for you

The cost-effective complete solution, ready to measure, available on request

传感器“示教程序”

Unlike our product, that is, the SLB700A/06VA, other available strain sensors with an integrated amplifier module only have a fixed amplification. For instance, 500 µm/m correspond to an output signal of 10 V. The fundamental drawback of this method is that the maximum output signal depends upon the given amplification, which cannot be changed. If, in the example above, a strain of 200 µm/m is utilized as the input signal, the resulting output voltage is 4 V. Particularly, when the next element in the measurement chain

和我们的其他产品不同,SLB700A/06VA 应变片传感器带有内置的放大器,例如 500 µm/m 对应 10 V 的输出信号。但这种方法有个最大的缺点,输出信号大小依赖于固定的放大程度。也就是200 µm/m 对应的输出仅有 4 V。特别严重的是,如果测量链的下个模块分辨率较低或是有不断增加的噪声,结果通常不令人满意。

而 HBM SLB700A/06VA 内置放大器的应变传感器,能够绕过这个问题,它们在任何时候都能提供最大可能的输出信号。

为了完成这一点, HBM 还开发了一个非常简单的 “示教程序”。

  • 首先,传感器以正常的方式安装,将施加到设备上的负载降低到零。一个较长的脉冲信号将被发送到示教输入端,用于放大器来记忆零点。
  • 接着,施加最大负载,获得另外一个短脉冲到示教输入端。这样,放大器就被调整到这两者之间。
  • 这样,就保证了放大器能够产生最大可能得输出信号,提高了测量精度。

更大优势:

  • 测量范围的上下部分始终有10%的缓冲区。更高的应变信号(如发生故障时)也可被放大和传输。
  • 特性曲线也可以是负值。传感器拉长和缩短都可以转化为正信号。
  • 内置低噪声测量放大器,信号带宽为 2 kHz。
  • 必须永久存储测量值得跨度,即最小值和最大值之间的差异。因此,断电后必须重置为零。

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