英国CLASS的CARGO-SAFE舱口盖超声波泄漏仪特点和优势
The Cargo-Safe and Door-Safe receivers unparalleled performance.
The signal from the ultrasonic transmitter is a bi-tone, slightly above and slightly below 40 kHz. Therefore, the receivers must exclusively capture these two very close frequencies. Any other frequencies produced by machinery, welding, repair work, or possibly from fluorescent lighting, must be rejected by the receiver. Any noise interference would show up on the receiver's display and be heard in the headphones which increases the display reading above the true value and obscuring the transmitter's bee-boo sound in the headphones. When the signal to the receiver is weak the display error can be significant. for instance at the critical time when readings are being taken from the closed hatch cover. Consequently, it is essential that the receiver only registers the transmitter sound and nothing else. The Class Instrumentation receiver has a unique capability to filter out all other sounds outside the transmitter's precise frequency range of 40 kHz, making it unparalleled in recording reliable and error-free results; essential requirements for an error free ultrasonic receiver.
货物保险箱和门保险箱具有无与伦比的性能。
超声波发射器的信号是双音，略高于和略低于40kHz。因此，接收器必须专门捕获这两个非常接近的频率。接收器必须拒绝机械、焊接、维修工作或荧光灯产生的任何其他频率。任何噪声干扰都会出现在接收器的显示器上，并在耳机中听到，这会使显示器读数高于真实值，并掩盖耳机中发射器的蜂鸣声。当接收器的信号较弱时，显示错误可能会很大。例如在从关闭的舱口盖读取读数的关键时刻。因此，接收器必须只记录发射器的声音，而不记录其他声音。Class Instrumentation接收器具有独特的能力，可以过滤掉发射器40 kHz精确频率范围之外的所有其他声音，使其在记录可靠和无误差的结果方面无与伦比；无误差超声波接收器的基本要求。
Transmitter Emitter testers for hatch-cover testers are crucial for ensuring accurate measurements. These transmitters employ multiple emitters to create a uniform spread of ultrasound. Each emitter must operate at maximum power to produce this even distribution. The uniform spread of ultrasound is essential to ensure consistent energy levels impact the entire hatch-cover seal. This consistency allows the open-hatch value (OHV) to be measured anywhere around the hatch-cover, yielding reliable decibel readings. The pass/fail criteria for hatch-cover seals are standardised at 10% of the OHV. Thus, it is vital that each emitter functions at maximum power to maintain consistent ultrasound throughout the ship's hold.
Testing the output of each emitter requires individual assessment using a calibrated emitter tester. Class Instrumentation Ltd includes a dedicated emitter tester in their Cargo-Safe hatch-cover testing kit. This tester is used before each survey to verify the transmitter's proper operation, ensuring compliance with all hatch-cover testing regulations. Class Instrumentation Ltd provides these essential tools.
舱口盖超声波泄漏仪的发射器---发射器对于确保准确测量至关重要。
这些发射器采用多个发射器来产生均匀的超声波传播。每个发射器必须以最大功率运行，以产生这种均匀的分布。超声波的均匀传播对于确保一致的能量水平影响整个舱口盖密封至关重要。这种一致性允许在舱口盖周围的任何地方测量打开舱口值（OHV），从而产生可靠的分贝读数。舱口盖密封件的合格/不合格标准标准为OHV的10%。因此，至关重要的是，每个发射器都以最大功率工作，以在整个船舱内保持一致的超声波。
测试每个发射器的输出需要使用校准的发射器测试仪进行单独评估。Class Instrumentation有限公司在其货舱安全测试套件中包括一个专用发射器测试仪。该测试仪在每次调查前用于验证变送器的正常运行，确保符合所有舱口盖测试规定。Class Instrumentation有限公司提供这些基本工具。
Transmitter Power.
In the realm of ultrasonic hatch cover testing, the significance of a highly potent transmitter cannot be overstated. Picture the hold of a cargo ship—a vast expanse akin to the scale of a grand church or mosque. To meticulously examine it for potential leaks, the deployment of ultrasound is imperative.
The objective in leak detection lies in pinpointing even the minutest ultrasound emissions. Adherence to regulations mandates precision within a margin of just +/-1%. Achieving such exactitude necessitates a substantial Opening Hatch Value (OHV) quantified in decibels. The magnitude of this value is paramount; if insufficient it would render findings inconclusive.
With Cargo-Safe from Class Instrumentation Ltd reigning as the most commanding ultrasonic transmitter procurable, it boasts a formidable output of 157 decibels, standing unrivalled in the market. For further details, delve into the depths of its capabilities.
发射机功率：
在超声波舱口盖检测领域，高效发射器的重要性怎么强调都不为过。想象一下一艘货船的货舱——一片广阔的空间，类似于一座大教堂或清真寺的规模。为了仔细检查是否存在潜在泄漏，必须部署超声波。
泄漏检测的目标在于精确定位最微小的超声波发射。遵守法规要求精度在+/-1%的范围内。要实现这种精确性，需要以分贝为单位量化的相当大的开启舱口值（OHV）。这个值的大小至关重要；如果不充分，调查结果将无法得出结论。
Class Instrumentation Ltd的Cargo-Safe是市面上最强大的超声波发射器，拥有157分贝的强大输出，在市场上无人能及。有关更多详细信息，请在以下网址深入了解其功能
均匀的超声波声音分布
在散货船上广阔的货舱内实现一致的超声波水平是一项重大挑战。它不仅需要大量的功率，还需要一种方法来均匀分散发射器发出的能量，以使该区域均匀饱和。因此，发射器上13个发射器的布置必须精心设计，以精确的模式发射能量，实现有效的分布。
Class Instrumentation Ltd特别地设计了13个发射器中每个发射器的定位和角度，以精确地解决这一复杂任务，确保xx性能。
电池寿命
在散货船上对舱口盖进行泄漏检测时，确保延长电池寿命至关重要。避免更换电池带来的不便至关重要。在Class Instrumentation Ltd，我们集成了一种专用电路，该电路设计用于在不考虑电池电压的情况下持续维持变送器功率，直到只剩下10%的电池功率。这一创新功能延长了设备性能，与传统电路相比，运行时间延长了一倍。通过这一改进，我们的设备可以自信地使用一套电池完成好望角型散货船的调查