Definition

1. Noun:
   • Detector: A device or instrument used to discover the presence, location, or nature of something, often by sensing signals, substances, or objects that are not easily perceived.
   • Finder: A tool designed to locate a specific target or item.
   • Probe: An instrument, often scientific or technical, used to explore, examine, or search for something.

Usage Examples

• Noun:
  • Cảnh sát sử dụng máy dò kim loại để tìm vũ khí. (The police use a metal detector to find weapons.)
  • Máy dò khí gas là thiết bị an toàn quan trọng trong nhà bếp. (A gas detector is an important safety device in the kitchen.)
  • Thợ săn kho báu dùng máy dò vàng để tìm cổ vật. (Treasure hunters use a gold finder to look for artifacts.)

Advanced Usage

• "máy dò tìm": This compound emphasizes the "searching" function, often translatable as "locator" or "search device."
  • Họ dùng máy dò tìm cá để xác định vị trí đàn cá. (They use a fish locator to determine the position of the school of fish.)
• "máy dò sóng": A wave detector or wave sensing device.
  • Máy dò sóng radio giúp thu tín hiệu từ xa. (A radio wave detector helps receive signals from afar.)

Variants and Related Words

• Máy dò kim loại (n): Metal detector.
• Máy dò mìn (n): Mine detector.
• Máy dò xạ (n): Radiation detector, Geiger counter.
• Máy dò độ sâu (n): Depth finder, echo sounder (related to the nautical context of "asdic").

Synonyms

• Detector: The most general and common equivalent.
• Sensor: Emphasizes the component that detects changes.
• Locator: Emphasizes the function of finding position.

Technical & Specific Contexts

• In nautical/military contexts: As referenced, "máy dò" can correspond to sonar (Sound Navigation and Ranging) or the historical term ASDIC (Anti-Submarine Detection Investigation Committee), used for detecting submarines underwater.
  • Tàu ngầm sử dụng máy dò (sonar) để định vị. (The submarine uses sonar to navigate.)