英國CLASS的CARGO-SAFE艙口蓋超聲波泄漏儀特點和優勢

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.

貨物保險箱和門保險箱具有無與倫比的性能。

超聲波發射器的信號是雙音，略高于和略低于40kHz。因此，接收器必須專門捕獲這兩個非常接近的頻率。接收器必須拒絕機械、焊接、維修工作或熒光燈產生的任何其他頻率。任何噪聲干擾都會出現在接收器的顯示器上，并在耳機中聽到，這會使顯示器讀數高于真實值，并掩蓋耳機中發射器的蜂鳴聲。當接收器的信號較弱時，顯示錯誤可能會很大。例如在從關閉的艙口蓋讀取讀數的關鍵時刻。因此，接收器必須只記錄發射器的聲音，而不記錄其他聲音。Class Instrumentation接收器具有獨特的能力，可以過濾掉發射器40 kHz精確頻率范圍之外的所有其他聲音，使其在記錄可靠和無誤差的結果方面無與倫比；無誤差超聲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.

艙口蓋超聲波泄漏儀的發射器---發射器對于確保準確測量至關重要。

這些發射器采用多個發射器來產生均勻的超聲波傳播。每個發射器必須以最大功率運行，以產生這種均勻的分布。超聲波的均勻傳播對于確保一致的能量水平影響整個艙口蓋密封至關重要。這種一致性允許在艙口蓋周圍的任何地方測量打開艙口值（OHV），從而產生可靠的分貝讀數。艙口蓋密封件的合格/不合格標準標準為OHV的10%。因此，至關重要的是，每個發射器都以最大功率工作，以在整個船艙內保持一致的超聲波。

測試每個發射器的輸出需要使用校準的發射器測試儀進行單獨評估。Class Instrumentation有限公司在其貨艙安全測試套件中包括一個專用發射器測試儀。該測試儀在每次調查前用于驗證變送器的正常運行，確保符合所有艙口蓋測試規定。Class Instrumentation有限公司提供這些基本工具。

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.

發射機功率：

在超聲波艙口蓋檢測領域，高效發射器的重要性怎么強調都不為過。想象一下一艘貨船的貨艙——一片廣闊的空間，類似于一座大教堂或清真寺的規模。為了仔細檢查是否存在潛在泄漏，必須部署超聲波。

泄漏檢測的目標在于精確定位最微小的超聲波發射。遵守法規要求精度在+/-1%的范圍內。要實現這種精確性，需要以分貝為單位量化的相當大的開啟艙口值（OHV）。這個值的大小至關重要；如果不充分，調查結果將無法得出結論。

Class Instrumentation Ltd的Cargo-Safe是市面上最強大的超聲波發射器，擁有157分貝的強大輸出，在市場上無人能及。有關更多詳細信息，請在以下網址深入了解其功能

均勻的超聲波聲音分布

在散貨船上廣闊的貨艙內實現一致的超聲波水平是一項重大挑戰。它不僅需要大量的功率，還需要一種方法來均勻分散發射器發出的能量，以使該區域均勻飽和。因此，發射器上13個發射器的布置必須精心設計，以精確的模式發射能量，實現有效的分布。

Class Instrumentation Ltd特別地設計了13個發射器中每個發射器的定位和角度，以精確地解決這一復雜任務，確保xx性能。

電池壽命

在散貨船上對艙口蓋進行泄漏檢測時，確保延長電池壽命至關重要。避免更換電池帶來的不便至關重要。在Class Instrumentation Ltd，我們集成了一種專用電路，該電路設計用于在不考慮電池電壓的情況下持續維持變送器功率，直到只剩下10%的電池功率。這一創新功能延長了設備性能，與傳統電路相比，運行時間延長了一倍。通過這一改進，我們的設備可以自信地使用一套電池完成好望角型散貨船的調查