英國(guó)CLASS的CARGO-SAFE艙口蓋超聲波泄漏儀特點(diǎn)和優(yōu)勢(shì)

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(xiǎn)箱和門(mén)保險(xiǎn)箱具有無(wú)與倫比的性能。

超聲波發(fā)射器的信號(hào)是雙音，略高于和略低于40kHz。因此，接收器必須專門(mén)捕獲這兩個(gè)非常接近的頻率。接收器必須拒絕機(jī)械、焊接、維修工作或熒光燈產(chǎn)生的任何其他頻率。任何噪聲干擾都會(huì)出現(xiàn)在接收器的顯示器上，并在耳機(jī)中聽(tīng)到，這會(huì)使顯示器讀數(shù)高于真實(shí)值，并掩蓋耳機(jī)中發(fā)射器的蜂鳴聲。當(dāng)接收器的信號(hào)較弱時(shí)，顯示錯(cuò)誤可能會(huì)很大。例如在從關(guān)閉的艙口蓋讀取讀數(shù)的關(guān)鍵時(shí)刻。因此，接收器必須只記錄發(fā)射器的聲音，而不記錄其他聲音。Class Instrumentation接收器具有獨(dú)特的能力，可以過(guò)濾掉發(fā)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(wú)誤差的結(jié)果方面無(wú)與倫比；無(wú)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(fā)射器---發(fā)射器對(duì)于確保準(zhǔn)確測(cè)量至關(guān)重要。

這些發(fā)射器采用多個(gè)發(fā)射器來(lái)產(chǎn)生均勻的超聲波傳播。每個(gè)發(fā)射器必須以最大功率運(yùn)行，以產(chǎn)生這種均勻的分布。超聲波的均勻傳播對(duì)于確保一致的能量水平影響整個(gè)艙口蓋密封至關(guān)重要。這種一致性允許在艙口蓋周?chē)娜魏蔚胤綔y(cè)量打開(kāi)艙口值（OHV），從而產(chǎn)生可靠的分貝讀數(shù)。艙口蓋密封件的合格/不合格標(biāo)準(zhǔn)標(biāo)準(zhǔn)為OHV的10%。因此，至關(guān)重要的是，每個(gè)發(fā)射器都以最大功率工作，以在整個(gè)船艙內(nèi)保持一致的超聲波。

測(cè)試每個(gè)發(fā)射器的輸出需要使用校準(zhǔn)的發(fā)射器測(cè)試儀進(jìn)行單獨(dú)評(píng)估。Class Instrumentation有限公司在其貨艙安全測(cè)試套件中包括一個(gè)專用發(fā)射器測(cè)試儀。該測(cè)試儀在每次調(diào)查前用于驗(yàn)證變送器的正常運(yùn)行，確保符合所有艙口蓋測(cè)試規(guī)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(fā)射機(jī)功率：

在超聲波艙口蓋檢測(cè)領(lǐng)域，高效發(fā)射器的重要性怎么強(qiáng)調(diào)都不為過(guò)。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(guī)模。為了仔細(xì)檢查是否存在潛在泄漏，必須部署超聲波。

泄漏檢測(cè)的目標(biāo)在于精確定位最微小的超聲波發(fā)射。遵守法規(guī)要求精度在+/-1%的范圍內(nèi)。要實(shí)現(xiàn)這種精確性，需要以分貝為單位量化的相當(dāng)大的開(kāi)啟艙口值（OHV）。這個(gè)值的大小至關(guān)重要；如果不充分，調(diào)查結(jié)果將無(wú)法得出結(jié)論。

Class Instrumentation Ltd的Cargo-Safe是市面上最強(qiáng)大的超聲波發(fā)射器，擁有157分貝的強(qiáng)大輸出，在市場(chǎng)上無(wú)人能及。有關(guān)更多詳細(xì)信息，請(qǐng)?jiān)谝韵戮W(wǎng)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(nèi)實(shí)現(xiàn)一致的超聲波水平是一項(xiàng)重大挑戰(zhàn)。它不僅需要大量的功率，還需要一種方法來(lái)均勻分散發(fā)射器發(fā)出的能量，以使該區(qū)域均勻飽和。因此，發(fā)射器上13個(gè)發(fā)射器的布置必須精心設(shè)計(jì)，以精確的模式發(fā)射能量，實(shí)現(xiàn)有效的分布。

Class Instrumentation Ltd特別地設(shè)計(jì)了13個(gè)發(fā)射器中每個(gè)發(fā)射器的定位和角度，以精確地解決這一復(fù)雜任務(wù)，確保xx性能。

電池壽命

在散貨船上對(duì)艙口蓋進(jìn)行泄漏檢測(cè)時(shí)，確保延長(zhǎng)電池壽命至關(guān)重要。避免更換電池帶來(lái)的不便至關(guān)重要。在Class Instrumentation Ltd，我們集成了一種專用電路，該電路設(shè)計(jì)用于在不考慮電池電壓的情況下持續(xù)維持變送器功率，直到只剩下10%的電池功率。這一創(chuàng)新功能延長(zhǎng)了設(shè)備性能，與傳統(tǒng)電路相比，運(yùn)行時(shí)間延長(zhǎng)了一倍。通過(guò)這一改進(jìn)，我們的設(shè)備可以自信地使用一套電池完成好望角型散貨船的調(diào)查