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Timing light, combination instrument with RPM, volt meter and dwell angle meter. The actual light is on the far end. The black clamp connects to the battery -, the red clamp to +, the green one to the breaker side of the coil (for RPM), the big black clamp in the foreground is an inductive pick-up that clamps around a spark plug wire.
Any meter will load the circuit under test to some extent. For example, a multimeter using a moving coil movement with full-scale deflection current of 50 microamps (μA), the highest sensitivity commonly available, must draw at least 50 μA from the circuit under test for the meter to reach the top end of its scale. This may load a high ...
The dwell time in GNSS is the time required to test for the presence of a satellite signal for a certain combination of parameters. [1] A search process detects whether a GNSS satellite is present or not in an area of the sky, based on correlation of a received signal with a reference signal stored in the receiver.
Application of the penetrant to a part in a ventilated test area. 2. Application of Penetrant: The penetrant is then applied to the surface of the item being tested. The penetrant is usually a brilliant coloured mobile fluid with high wetting capability. [1] The penetrant is allowed "dwell time" to soak into any flaws (generally 5 to 30 minutes).
Dwell time (T D) in surveillance radar is the time that an antenna beam spends on a target. [1] The dwell time of a 2D–search radar depends predominantly on the antenna's horizontal beam width θ AZ, and; the turn speed n of the antenna (in rotations per minute or rpm, i.e. 360 degrees in 60 seconds = multiplied by a factor of 6).
An SWR meter does not measure the actual impedance of a load (the resistance and reactance), but only the mismatch ratio. To measure the actual impedance requires an antenna analyzer or other similar RF measuring device. For accurate readings, the SWR meter itself must also match the line's impedance (typically 50 or 75 Ohms).
Dwell time (GNSS) Dwell time (information retrieval), the time a user remains at a search result after a click; Dwell time (military), the time personnel spend in home station between deployments; Dwell time (radar), the time that an antenna beam spends on a target; Dwell time (transportation), the time a vehicle spends at a scheduled stop ...
In transportation, dwell time or terminal dwell time refers to the time a vehicle such as a public transit bus or train spends at a scheduled stop without moving. [1] Typically, this time is spent boarding or deboarding passengers and baggage, but it may also be spent waiting for traffic ahead to clear, trying to merge into parallel traffic, or ...
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