As the name we can see Mercury Slip Rings are specialized types of slip rings that use liquid mercury as the electrical contact medium to transfer electrical signals and power between stationary and rotating parts of a system.
Main Parameters
|
Power |
50A |
|
Max frequency |
200MHz |
|
Max speed |
1800rpm |
|
Temperature |
-30℃~ +60℃ |
|
Torque |
70GM-CM |
More Model for Choice
|
Poles |
Model |
Current Amp. |
Voltage AC/V |
MAX.FREQ.MHZ |
Max. RPM |
Operating Temp. Max/Min °C |
Rotating Torque (gm-cm) |
Insulation Resistance |
|
1 |
A1M |
10 |
250 |
200 |
2000.. |
60/-30 |
75 |
>25MΩ |
|
2 |
A2S |
4 |
250 |
200 |
2000.. |
60/-30 |
75 |
>25MΩ |
|
3 |
A3S |
4 |
250 |
200 |
1800 |
60/-30 |
100 |
>25MΩ |
|
2 |
A2H |
30/2 |
250 |
200 |
1800 |
60/-30 |
200 |
>25MΩ |
|
3 |
A3M |
30/1 |
250 |
200 |
1800 |
60/-30 |
200 |
>25MΩ |
|
3 |
A3H |
30/3 |
250 |
200 |
1200 |
60/-30 |
400 |
>25MΩ |
|
4 |
A4H |
30/2; 2/4A |
250 |
200 |
1200 |
60/-30 |
400 |
>25MΩ |
|
6 |
A6H |
30/4; 2/4A |
250 |
200 |
300 |
60/-30 |
700 |
>25MΩ |
|
8 |
A8H |
30/6; 2/4A |
250 |
100 |
200 |
60/-30 |
1000 |
>25MΩ |
|
10 |
A1030 |
30/8; 2/4A |
250 |
100 |
100 |
60/-30 |
1500 |
>25MΩ |
|
12 |
A1230 |
30/10; 2/4A |
250 |
100 |
60 |
60/-30 |
2000 |
>25MΩ |
|
14 |
A1430 |
30/12; 2/4A |
250 |
100 |
40 |
60/-30 |
3000 |
>25MΩ |
|
15 |
A1H25S |
250/1 |
250 |
200 |
1200 |
60/-30 |
250 |
>25MΩ |
Advantages of Mercury Slip Rings
Since liquid contacting, not like copper or silver, gold, there are many advantages of Mercury slip ring :
1. Minimal Wear and Tear: Since mercury is a liquid, it provides a self-healing contact surface that reduces wear and tear compared to solid-contact slip rings. This feature significantly extends the lifespan of the slip ring.
2. Smooth and Reliable Electrical Transfer: Mercury slip rings offer stable and reliable signal transmission, even at high speeds, because the liquid medium reduces the chances of electrical arcing or sparking.
3. High-Speed Operation: The liquid contact surface ensures smooth and consistent operation at high rotational speeds. This makes mercury slip rings particularly useful in systems where rapid rotation is required, such as radar systems or medical imaging devices.
4. Excellent Conductivity: Mercury has a high electrical conductivity, which allows for the transmission of high currents and high-frequency signals with minimal loss.
5. Low Contact Resistance: The liquid nature of mercury reduces the contact resistance that is typical in traditional solid contact slip rings, ensuring better performance for high-power and high-speed applications.
Considerations When Choosing Mercury Slip Rings
While mercury slip rings offer advantages in performance, there are several aspects that require careful attention:
1. Environmental Responsibility: Mercury is toxic, and any leakage can result in significant environmental damage. We need to pay attention to the proper procession of discarding.
2. Higher Investment: Mercury slip rings are typically more expensive than their conventional counterparts due to the complex design, use of mercury, and additional safety measures required.
3. Regular Monitoring: Even though mercury slip rings have fewer mechanical parts that wear out, they still need routine checking to ensure the integrity of the mercury and the seals.
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