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High-Voltage Doorhandle Capacitors: Nondestructive Testing Equipment
| No. | Specification | Dissipation | Withstanding Voltage | Insulation Resistance | Dimensions (mm) |
|---|---|---|---|---|---|
| 1 | 20kV-2000pF | ≤0.0040 | 1.5Ur● 1min | ≥1.0 x 105MΩ | D:45 | H:19 | L:23 | D:12 | M:5 |
| 2 | 20kV-10000pF | ≤0.0040 | 1.5Ur● 1min | ≥1.0 x 105MΩ | D:65 | H:15 | L:19 | D:12 | M:5 |
| 3 | 20kV-18000pF | ≤0.0040 | 1.5Ur● 1min | ≥1.0 x 105MΩ | D:80 | H:17 | L:25 | D:12 | M:5 |
| 4 | 30kV-1000pF | ≤0.0040 | 1.5Ur● 1min | ≥1.0 x 105MΩ | D:45 | H:24 | L:32 | D:12 | M:4 |
| 5 | 30kV-2700pF | ≤0.0040 | 1.5Ur● 1min | ≥1.0 x 105MΩ | D:60 | H:20 | L:28 | D:12 | M:4 |
| 6 | 30kV-12000pF | ≤0.0040 | 1.5Ur● 1min | ≥1.0 x 105MΩ | D:45 | H:19 | L:23 | D:12 | M:5 |
| 7 | 40kV-150pF | ≤0.0040 | 1.5Ur● 1min | ≥1.0 x 105MΩ | D:74 | H:18 | L:26 | D:12 | M:5 |
| 8 | 40kV-500pF | ≤0.0040 | 1.5Ur● 1min | ≥1.0 x 105MΩ | D:28 | H:33 | L:41 | D:8 | M:4 |
| 9 | 40kV-7500pF | ≤0.0040 | 1.5Ur● 1min | ≥1.0 x 105MΩ | D:80 | H:24 | L:29 | D:12 | M:6 |
| 10 | 40kV-10000pF | ≤0.0040 | 1.5Ur● 1min | ≥1.0 x 105MΩ | D:80 | H:22 | L:26 | D:16 | M:5 |
Insights into the finest details, the cornerstone of energy: How high-voltage doorhandle capacitors become the "heart of stability" for nondestructive testing equipment
In the field of industrial nondestructive testing, whether it's X-ray testing, ultrasonic testing, or eddy current testing, the essence is to reveal the secrets within materials through precise energy control. The starting point for all of this is often a stable, pure, high-voltage power supply system. High-voltage doorhandle capacitors are the indispensable cornerstone of this system's energy stability.
Nondestructive Testing Equipment's Stringent Requirements for High-Voltage Power Supplies
The core task of nondestructive testing equipment is to provide precise excitation for test probes (such as X-ray tubes and ultrasonic transducers). This requires high-voltage power supplies to possess:
Extremely high stability: Even slight fluctuations in the output voltage will directly reduce the signal-to-noise ratio of the test signal, resulting in false positives or missed detections.
Extremely low ripple and noise: Pure DC voltage is essential for ensuring accurate test data and clear images.
Strong shock resistance: Frequent switching and load changes in equipment can impact the power supply, requiring robust components.
The Core Functions of Doorknob Capacitors: Filtering and Energy Storage
In high-voltage power modules for nondestructive testing equipment, doorknob capacitors primarily play the key roles of DC link filtering and transient energy buffering.
Filtering: Effectively filters high-frequency ripple generated by the switching power supply, outputting a smooth, mirror-like DC high voltage, providing "clean" energy for loads such as X-ray tubes.
Energy Storage: During transient load changes (such as during X-ray tube exposure), they provide instantaneous high current, stabilize the bus voltage, and prevent voltage drops.
Our Solution: Built for Precision and Reliability
Our specially designed doorknob capacitors meet the stringent requirements of nondestructive testing, offering the following core advantages:
Excellent Voltage Stability: Utilizing highly stable Class II or Class III ceramic dielectrics, the capacitance value exhibits minimal variation under varying DC bias conditions, ensuring long-term output voltage stability.
Extremely Low Equivalent Series Resistance (ESR): A unique internal electrode design and material processing result in ultra-low ESR, effectively filtering high-frequency ripple, significantly reducing self-heating, and improving power supply efficiency.
Robust mechanical and electrical construction: The iconic "doorknob" screw terminals provide a robust mechanical connection and excellent current-carrying capacity. Epoxy resin vacuum potting ensures excellent moisture and dust resistance, making it suitable for a variety of industrial environments.
Choosing our high-voltage doorknob capacitors means choosing a robust and stable "heart" for your nondestructive testing equipment, laying a solid foundation for every accurate diagnosis.