China Wholesale Forced Vibration Factory – LMEC-8 Apparatus of Forced Vibration and Resonance – Labor
China Wholesale Forced Vibration Factory – LMEC-8 Apparatus of Forced Vibration and Resonance – Labor Detail:
Forced vibration and resonance phenomenon are often used in engineering and scientific research, such as in construction, machinery and other engineering, it is often necessary to avoid resonance phenomenon to ensure the quality of engineering. In some petrochemical enterprises, resonance phenomenon line is used to detect liquid density and liquid height, so forced vibration and resonance are important physical laws, which are more and more popular in physics and engineering technology Attention. The instrument uses tuning fork vibration system as the research object, electromagnetic force of electromagnetic exciting coil as exciting force, and electromagnetic coil as amplitude sensor to measure the relationship between vibration amplitude and driving force frequency, and study forced vibration and resonance phenomenon and its law.
Experiments
1. Study the relationship between amplitude and force frequency of a tuning fork vibration system driven by a periodically external force. Measure and plot their relationship curve, and acquire the resonance frequency and the sharpness of the vibration system (this value is equal to the Q value).
2. Measure the relationship between the vibration and the mass of symmetrical arms of the tuning fork. Acquire the relationship formula between the vibration frequency f (i.e. resonance frequency) and the block mass m attached to the tuning fork arms at a certain position.
3. Determine the mass of a pair of mass blocks attached to the tuning fork arms by measuring the resonance frequency.
4. Measure the resonance frequency and sharpness of the tuning fork when changing the vibration structure and increasing the damping force of the tuning fork and do comparisons.
The instruction manual contains experimental configurations, principles, step-by-step instructions, and examples of experiment results. Please click Experiment Theory and Contents to find more information about this apparatus.
Specifications
| Description | Specifications |
| Tuning fork and support | dual arms, vibration frequency about 248 – 256 Hz (without loading) |
| Signal generator | frequency range 200 – 300 Hz adjustable |
| Frequency control &display |
200 – 300 Hz, resolution 0.01 Hz |
| AC voltmeter |
range 0 – 2000 mV, resolution 1 mV |
| Stainless steel damping sheet | dimensions 50 mm × 40 mm × 0.5 mm, 2 pieces, attached to two arms of tuning fork using small magnets respectively |
| Paired mass block |
6 pairs of different masses |
| Tuning fork | driven and sensed by electromagnetic coils |
Parts List
| Description | Qty | Note |
| Main electric unit | 1 | |
| Mechanical stage | 1 | |
| Mass block | 6 pairs | different mass for each pair |
| Thin stainless plate | 2 | |
| Magnetic steel | 2 | diameter 18 mm, Neodymium magnet |
| BNC cable | 4 | |
| Watch glass | 1 | |
| Allen wrench | 1 | |
| Power cord | 1 | |
| Instruction manual | 1 |
Product detail pictures:
Related Product Guide:
Our focus on should be to consolidate and enhance the quality and repair of present products, in the meantime constantly establish new products to meet unique customers' requires for China Wholesale Forced Vibration Factory – LMEC-8 Apparatus of Forced Vibration and Resonance – Labor , The product will supply to all over the world, such as: Czech Republic, New Delhi, Gabon, Based on products and solutions with high quality, competitive price, and our full range service, we have accumulated experienced strength and experience, and we've built up a very good reputation in the field. Along with the continuous development, we commit ourselves not only to the Chinese domestic business but also the international market. May you moved by our high quality items and passionate service. Let's open a new chapter of mutual benefit and double win.
By Jerry from Morocco - 2017.09.26 12:12
The customer service staff's answer is very meticulous, the most important is that the product quality is very good, and packaged carefully, shipped quickly!
By Daphne from Manchester - 2017.12.31 14:53
