Bộ cảm biến gia tốc là một thiết bị để phát hiện gia tốc hoặc rung động bằng cách gắn hoặc tiếp xúc vào thân rung của máy móc hoặc thiết bị.
Công ty ACO Co., Ltd. cung cấp nhiều loại bộ cảm biến gia tốc, bao gồm cả TYPE 7302 chỉ nặng bằng 1/5 của đồng xu 1 Yên (0,2g), và các loại khác có phạm vi nhiệt độ từ -50℃ đến +160℃, đáp ứng các nhu cầu khác nhau của khách hàng. Với loại bộ cảm biến gia tốc tích hợp bộ khuếch đại tiền khuếch đại, không cần bộ khuếch đại điện tích đắt tiền và có thể kéo dài cáp nhiễu thấp, do đó giảm chi phí đo lường.
Piezoeletric Type Acceleration Pickup Built-in Preamplifier Type Acceleration Pickup
CASE STUDY
In general, acceleration pickup has a main axis with which the acceleration sensitivity becomes its maximum. It is called “Sensing Axis” and align this axis with the desired measurement direction. Normally the sensing axis is close to perpendicular to the mounting base surface of the pickup.
With the pickup fixed to the vibration table and if it is vibrated in the direction of sensing axis, the pickup will provide rating output. Next, if the pickup is mounted on the vibration table with inclination angle θ for the sensing axis and vibrated, the output (SVθ) will be rating output multiplied by cosθ, Output for the sensing axis will be SVθ*cosθ. If the θ is brought to 90 degrees, the output is supposed to become zero however, because of the existence of the Transverse Sensitivity (i.e. Sensitivity in any given direction perpendicular to the sensing axis), there will be some output. In the case of pickups offered by ACO, the lateral axis sensitivity is less than 5%.
Triple axis pickup is very useful since it can measure the vibration in 3 axis simultaneously. It is a convenient sensor to obtain composition of acceleration in 3 axes, or to measure and evaluate human body exposure to the vibration of machinery.
New product, 3 axis 10 mm X 10 mm, was developed in reply to the need to use the pickup at measurement site where only small mounting space is available. It contains preamplifier yet it
Type | TYPE 7302 | TYPE 7303 | TYPE 7304 | TYPE 7344A | ||
Appearance * Click the figure to see enlarged drawing. |
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Feature | Extremely small size | Small size, waterproof | Small ring | Small size, light weight | ||
Configuration | Shear type | Bending type | Shear type | |||
Sensitivity pC/m/s² | 0.035 | 1.84 | 0.2 | 0.3 | ||
Frequency Range Hz(±5%) | fc ~ 6,000 | fc ~ 1,300 | fc ~ 10,000 | fc ~ 15,000 | ||
Frequency Range Hz(±3dB) | fc ~ 20,000 | fc ~ 2,000 | fc ~ 20,000 | |||
Resonant Frequency kHz | 60 | 5 | 60 | |||
Maximum Usable Acceleration m/s² | 100,000 | 5,000 | 50,000 | |||
Maximum Transverse Sensitivity % | - | 5 | ||||
Impact Resistance m/s² | 100,000 | 10,000 | 100,000 | |||
Operating Temperature ℃ | -50 ~ +160 | -20 ~ +120 | -50 ~ +160 | -20 ~ +150 | ||
Connector | N/A(cable) | Micro connector on the side surface(M3) | ||||
Cable | - | BC-0065 | ||||
Case Material | Titanium | Stainless steel | Titanium | |||
Outline size (excluding connector) mm |
Φ3.5×2.5(H) | 4(W)×13(D)×4(H) | Φ8×5.4(H) | 7(Hex)×10.5(H) | ||
Weight g | 0.2 | 1.3 | 1.9 | 2 | ||
Spanner Screw | Bonding | Screw (M2) or Bonding | M3 Female screw | |||
Appearance diagram mm * Click the figure to see enlarged drawing. |
Type | TYPE 7351A | TYPE 7350A | TYPE 7323A | TYPE 7323B |
Appearance * Click the figure to see enlarged drawing. |
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Feature | For general applications | Extremely small size, 3 axis | Small size, 3 axis | |
Configuration | Compression type | Shear type | ||
Sensitivity pC/m/s² | 5.0 | 0.04 | 0.16 | |
Frequency Range Hz(±5%) | fc ~ 8,000 | fc ~ 7,000 | fc ~ 5,000 | fc ~ 10,000 |
Frequency Range Hz(±3dB) | fc ~ 12,000 | fc ~ 10,000 | fc ~ 20,000 | fc ~ 15,000 |
Resonant Frequency kHz | 40 | 30 | 60 | 40 |
Maximum Usable Acceleration m/s² | 16,000 | 25,000 | 10,000 | |
Maximum Transverse Sensitivity % | 5 | |||
Impact Resistance m/s² | 20,000 | 50,000 | 100,000 | |
Operating Temperature ℃ | -40 ~ +150 | -50 ~ +160 | -20 ~ +160 | |
Connector | Miniature connector on the upper surface | Miniature connector on the side surface | N/A(cable) | Micro connector on the side surface(M3) |
Cable | BC-0062 | - | BC-0065 | |
Case Material | Stainless steel | Titanium | ||
Outline size (excluding connector) mm |
14(Hex)×25(H) | 14(Hex)×30(H) | 8(W)×7(D)×5.5(H) | 17(W)×9(D)×7(H) |
Weight g | 25 | 29 | 1.2 | 5.2 |
Spanner Screw | M6 Female screw | Bonding | ||
Appearance diagram mm * Click the figure to see enlarged drawing. |
Maintenance and calibration :
► We also have calibration certificate attached ( optional )
► Please re-calibrate after use for a certain period through our purchase store.
DISTRIBUTED BY:
Semiki instrumentation Co., Ltd
Email: sales@semiki.com
Office tel: +84 28 2253 3522
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