力传感器

8230-002型

DeltaTron力传感器，2.2 mV / N

设计用于动态，短时静态和冲击力测量
- Sensitivity : 2.2 (10) mV/N (mV/lbf)
- Range full scale : +2000 / -2000 (+500 / 500) N (lbf) N (lbf)
- Maximum force :
- Maximum compression : +4400 (+10,000) N (lbf) N (lbf)
- Maximum tension : -2200 (-500) N (lbf) N (lbf)
8230-003型

DeltaTron力传感器，0.22 mV / N

设计用于动态，短时静态和冲击力测量
- Sensitivity : 0.2mV/N
- Range full scale : +22000/-22000N
- Maximum force :
- Maximum compression : 66000N
- Maximum tension : -2200N
8231-C型

电荷力传感器，范围: 拉伸2.2kN-压缩100 kN，不包括电缆

设计用于动态、短持续时间静态和冲击力测量，同时通常用于具有过多压缩力，或需要广泛压缩范围的力测量。
- Sensitivity : N/A
- Range full scale : 111205 (25000)N
- Maximum force :
- Maximum compression : 268000N
- Maximum tension : -4448N
8230-001型

DeltaTron力传感器，22 mV/N

用于动态、短期静态和冲击力的测试
- Sensitivity : 22 mV/g
- Range full scale :
- Maximum force :
- Maximum compression :
- Maximum tension :
8230型

IEPE力传感器，110 mV / N

设计用于动态，短时静态和冲击力测量
- Sensitivity : 110 mV/N
- Range full scale : +44/-44 N
- Maximum force :
- Maximum compression : 880N
- Maximum tension :
8001型

阻抗头， 10-32 UNF螺纹

设计用于广泛的结构，包括转子叶片，聚合物，橡胶，人体，仿真乳突，水果，焊缝，木材和金属板
- Sensitivity :
- Range full scale :
- Maximum force :
- Maximum compression : 2000N
- Maximum tension : 300N

Piezoelectric Force Transducers

Brüel & Kjær force transducers provide integral electronics designed for dynamic, short-duration static and impact force measurements. The transducers are typically used for measuring applied forces in modal applications. As an example, they are inserted between an exciter and a test structure, or as a for general-purpose instrument to measure force within process applications.

The ultimate goal of using a force sensor is to measure the input force of an accelerometer (or laser velocity transducer), in test scenarios where you want to measure the impulse, or impact force response of a structure.

Characteristics

The transducers work on the piezoelectric effect of quartz. When stressed, or compressed, this provides an electrical charge proportional to the compressing force. The charge is converted to a low-impedance voltage output and the sensitivity is therefore expressed in terms of voltage per unit force (mV/N).

The housing material is stainless steel giving a very stiff and rigid construction. The transducers are mounted using the 28 UNF tapped holes on the top and bottom of the body, and feature a 10 - 32 UNF side connector.

Calibration of the Force Sensitivity

The transducers are supplied with an individual calibration of the force sensitivity.

The transducer is mounted on the test structure so that the force to be measured is transmitted through the transducer. When used with an exciter, the transducer signal can be used to measure and control the applied force. The frequency response function of the test structure can then be measured and analysed using a stationary or hand-held dual-channel analyzer.

As an example, the force sensitivity for the transducer family type 8230 is listed below:

Type 8230 has a sensitivity of 110 mV/N (500 mV/lbf).
Type 8230-001 has a sensitivity of 22 mV/N (100 mV/lbf).
Type 8230-002 has a sensitivity of 2.2 mV/N (10 mV/lbf).
Type 8230-003 has a sensitivity of 0.2 mV/N (1 mV/lbf).

For further details or questions in regard to specific sensor types, specifications and price, please get in touch with your local Brüel & Kjær sales representative.