Earmuffs for the environment:
1, home: weekend home security, do not hear the window outside the cries
2, sleep: how can you cry in the pillow, but also I sleep quietly
3. Self-study room: Everyone is drunk and I wake up alone, letting you sound self-confessed
4, bustling downtown: knot in downtown, and no car
5, airport dock: full of joy to travel, do not hear the noise of nine days
6, enjoy the fireworks: flower dance Qiong empty rotten, do not hear deafening
7. Construction site: From the highest floor of a high building, who would like to hear the noise?
8, processing workshops: 唧唧 唧唧 唧唧 唧唧 ears can not afford, since you have your ears affordable
Earmuffs use method:
1. Stretch the headband to the maximum “open†position and over the top of the head to cover the ears with the cup;
2, relax the headband back, adjust the cup height until the headband can support the cup, and the ears feel comfortable;
3, the cushion of the earmuffs should closely fit the head;
4, adjust the headband to ensure the correct tight, effective noise isolation.
Earmuff cleaning method:
1. Follow the recommended methods of maintenance and cleaning to maintain optimal noise reduction and performance.
2, can only clean the surface of the earmuffs, use neutral soapy water and warm water, do not soak in water.
3. Do not use solvents such as alcohol, acetone, anhydrous liquid soap, or products containing lanolin to clean the earmuffs.
4. Do not store the product in an environment where the temperature is higher than 85 degrees Celsius, such as behind a car's windshield or in a window.
5. To ensure stable noise reduction, good hygiene and comfort, it is recommended to regularly inspect the earmuffs for cracked or broken parts, especially gaskets.
Precautions:
Due to personal safety requirements, appropriate noise reduction products should be worn in a noisy environment. In order to achieve the best noise reduction effect, earmuff seals need to fit tightly with the head. Anything that affects the fit (long hair, poorly adaptable legs, pens, or hats) may reduce the noise-canceling effect. Do not bend or modify the headband of the earmuffs, as this will result in tight fit and degrade noise.
Wear earmuffs correctly. Improper wearing will affect the noise reduction effect.
About the earmuffs tight: any noise reduction earmuffs have a certain degree of strength, so as to achieve the desired noise reduction effect, if you can not have any pressure on your ears suggest that you buy noise reduction earplugs.
China Labor Insurance Network
The vibration sensor(Vibration Transmitter) is one of the key components in the testing technology of Vibration Measurement. Its main function is to receive the mechanical quantity and convert it into a proportional electric quantity. Because it is also an electromechanical conversion device. So we sometimes call it a transducer, a vibration pickup, etc.
Commonly used vibration sensors are as follows:
1. Piezoelectric resonant
The piezoelectric sheet is used to receive the vibration signal, and the resonance frequency of the piezoelectric sheet is relatively high. In order to reduce the resonance frequency, it is realized by increasing the mass of the piezoelectric sheet vibrating body, and using a spring ball instead of an appendage to reduce the two resonance frequencies and enhance the vibration effect. Its advantages are high sensitivity and simple structure. However, the signal needs to be amplified and sent to a TTL circuit or a single-chip microcomputer circuit, but it is enough to use a triode single-stage amplification
2. mechanical vibration
In the traditional vibration detection method, after being vibrated, the spring ball vibrates at a reduced amplitude for a long time, and this vibration is easy to be detected by the detection circuit. The vibration output switch signal is determined by the output impedance and the resistance value of the matching output. According to the input impedance of the detection circuit, it can be made into a high-impedance output mode.
3. Micro Vibration Sensor
The mechanical vibration sensor is miniaturized, the vibration body is carbonized and sealed, and its working performance is more reliable. The output switching signal is directly connected with the TTL circuit and or the input circuit of the single-chip microcomputer, and the circuit structure is simple. The output impedance is high, and the quiescent working current is small.
Advantages of Vibration Sensors
1. Small size and light weight. It can be applied to some vibration test systems that are greatly affected by the additional mass.
2. It has a wider response frequency range of 4Hz-2000Hz than the magnetoelectric speed sensor, and the mechanical moving parts are not easy to damage
If you have any questions about the vibration sensor, please contact us, we will provide you with professional and timely answers.
Vibration Sensor,Accelerometer Sensor,Velocity Sensor,Accelerometer Vibration Sensor
Wuxi Winsun Automation Instrument Co., Ltd , https://www.winsunwx.com