Differential expansion/axial position monitor

The so-called differential expansion refers to the strain on the structure. If an axis is fixed on the cross section, the load on the axis is the strain when the structure appears uneven deformation. The greater the strain, the more serious the deformation. In this paper, we propose an elastic strain gauge system, which combines the elastic strain gauge sensor with the mechanical strain gauge sensor, and uses the mechanical strain gauge sensor to monitor the differential stress between the two sensors in real time. It has the advantages of simple structure, low cost, small size, reliable operation, strong anti-interference ability, fast response speed and so on. It is widely used in construction machinery at present, and the market potential is huge.

1. This system adopts two different types of sensors, which are respectively installed on two mechanical shafts, as shown in Figure 2.

The measuring principle of the two sensors is basically the same, that is, the displacement error of the mechanical shaft can be calculated by measuring the displacement of the two axes, and the time information of the mechanical shaft's response to the pressure and strain can be obtained. The sensor can measure not only the pressure stress but also the liquid strain. After the mechanical shaft is installed with this sensor, the pressure sensor can be installed at the displacement sensor. In this way, a force feedback mechanism is formed between the displacement probe and the pressure sensor, which can better reflect the actual differential strain between the two pressure sensitive elements. Therefore, the monitoring accuracy of this system has been greatly improved. It also provides reliable technical support for structural design and manufacture.

2, when the displacement of two structural parts, the elastic strain gauge sensor will measure the change of displacement;

During the working process, the elastic strain gauge sensor is responsible for transferring the mechanical displacement information to the mechanical strain gauge sensor installed on the two structural parts, and the displacement information generated between them will be recorded in real time. When the displacement of two structural parts occurs, the elastic strain gauge sensor will measure the axial position through the displacement, and transfer the displacement data to the mechanical strain gauge sensor. When the displacement of two structural parts occurs, the mechanical strain gauge automatically feeds back the strain measurement results between the two structural parts to the elastic strain gauge measuring equipment. The two elastic deformation gauge sensors convert the two displacements into corresponding positions respectively and output them to the mechanical strain gauge testing equipment. After the signals are transmitted to the testing equipment, the converted signals can be used for the vibration and fault diagnosis of the mechanical transmission mechanism in the system. It provides accurate and reliable basis for mechanical transmission mechanism structure performance monitoring and fault diagnosis, and also reduces the detection error and improves the working efficiency of detection equipment and technicians.

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Xiamen Xiongba Electronic Commerce Co. LTD

FROM：Mr. Wei

E-Mail：2322181769@qq.com

TEL/WeChat:15396237607

Bentley 3500 system is used for vibration monitoring and protection of large machinery. Bentley 3500 system must be equipped with frame 3500/05, power 3500/15, frame interface module 3500/22m,

bently3500 Bentley power high voltage AC 220V, spare parts as follows

127610-01 AC power module

125840-01 High-Voltage AC Power Input Module (PIM)

125840-02 Low-Voltage AC Power Input Module (PIM)

129486-01 High voltage DC power module

129478-01 High Voltage DC Power Input Module (PIM)

133292-01 Low voltage DC power module

133300-01 Low Voltage DC Power Input Module (PIM)

Spare fuse (two types of AC PIM and HVDC PIM)

01720045 Spare Fuse (Low voltage DC PIM)

129677-01 Power Operation and Maintenance manual

The order information and model of Bentley power supply bently 3500/15 are as follows:

3500/15-AXX-BXX-CXX option description

A: Power supply type (upper notch)

Low voltage AC (85-132 Vac rms)

02 High Voltage AC (175-264 Vac rms)

High voltage direct current (88-140 Vdc)

Low voltage DC (20-30 Vdc)

05 Universal AC Power Supply (85-264 Vac rms) (New)

B: Power supply type (lower notch)

No power supply (only used if single power supply is required)

Low voltage AC (85-132 Vac rms)

02 High Voltage AC (175-264 Vac rms)

High voltage direct current (88-140 Vdc)

Low voltage DC (20-30 Vdc)

05 Universal AC Power Supply (85-264 Vac rms) (New)

C: Approve the unit option

00 without

01 CSA/NRTL/C

02 ATEX/IECEx/CSA (Class 1, Zone 2)

CN China

Specific models are as follows:

3500/15 (front panel 127610-01, rear panel 125840-01)

3500/15-02-02-00, upper notch and lower notch are installed, so dual power supply,

3500/15-02-00-00, upper notch is installed, lower notch is not installed, so it is a single power supply

3500/15-05-05-00, upper notch and lower notch are installed, so it is dual power supply

The following is the upgraded 3500/15 universal AC power module:

3500/15(106M1079-01 front panel, 106M1081-01 rear panel)

3500/15-05-05-00, upper notch and lower notch are installed, so it is a set of double power supply

3500/15-05-00-00, upper notch is installed, lower notch is not installed, so it is a set of single power supply

If you need to inquire or purchase ,please send the product models to my email or call me directly .

Contact detail:Mobile/ WeChat/ WhatsApp:+86-15396237607

E-mail:2322181769@qq.com

QQ: 2322181769