In-situ deployable detachable passive sampler

By designing a detachable passive sampler in-situ delivery device, which employs a mechanical structure and a passive drive mechanism, the risks of loss, high costs, and disturbances associated with existing devices are resolved. This enables efficient and reliable sampling in different water depth environments and supports simultaneous monitoring of multiple indicators.

CN121894126BActive Publication Date: 2026-06-26SHANGHAI JIAOTONG UNIV +1
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Patent Information

Application Number
CN202610369090.4
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2026-03-25
Publication Date
2026-06-26
Estimated Expiration
2046-03-25

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Abstract

The application provides an in-situ release device of a detachable passive sampler, which comprises a passive sampler fixing disc and a release device detachably connected with the fixing disc, wherein the release device comprises a bottom-touching trigger mechanism and a passive driving mechanism; the bottom-touching trigger mechanism is used for triggering a separation action in response to a change in mechanical state generated when the bottom of the release device contacts the surface of a sediment; and the passive driving mechanism drives the release device to separate from the fixing disc after being triggered. Through the design that the release device is separated from the fixing disc, the application realizes the recycling of the expensive release device, significantly reduces the cost and loss risk, and the release process of the device completely depends on the passive mechanical structure, so that the reliability is high, and the device can be adapted to shallow water and deep water environments through different designs, so that the deployment stability is ensured.
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Citation Information

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