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detector
In the broadest definition, a sensor is a device, module, machine, or subsystem whose purpose is to detect events or changes in its environment and send the information to other electronics, frequently a computer processor. A sensor is always used with other electronics.
Sensors are used in everyday objects such as touch-sensitive elevator buttons (tactile sensor) and lamps which dim or brighten by touching the base, besides innumerable applications of which most people are never aware. With advances in micromachinery and easy-to-use microcontroller platforms, the uses of sensors have expanded beyond the traditional fields of temperature, pressure or flow measurement, for example into MARG sensors. Moreover, analog sensors such as potentiometers and force-sensing resistors are still widely used. Applications include manufacturing and machinery, airplanes and aerospace, cars, medicine, robotics and many other aspects of our day-to-day life. There are a wide range of other sensors, measuring chemical & physical properties of materials. A few examples include optical sensors for Refractive index measurement, vibrational sensors for fluid viscosity measurement and electro-chemical sensor for monitoring pH of fluids.
A sensor's sensitivity indicates how much the sensor's output changes when the input quantity being measured changes. For instance, if the mercury in a thermometer moves 1 cm when the temperature changes by 1 °C, the sensitivity is 1 cm/°C (it is basically the slope dy/dx assuming a linear characteristic). Some sensors can also affect what they measure; for instance, a room temperature thermometer inserted into a hot cup of liquid cools the liquid while the liquid heats the thermometer. Sensors are usually designed to have a small effect on what is measured; making the sensor smaller often improves this and may introduce other advantages.Technological progress allows more and more sensors to be manufactured on a microscopic scale as microsensors using MEMS technology. In most cases, a microsensor reaches a significantly faster measurement time and higher sensitivity compared with macroscopic approaches. Due to the increasing demand for rapid, affordable and reliable information in today's world, disposable sensors—low-cost and easy‐to‐use devices for short‐term monitoring or single‐shot measurements—have recently gained growing importance. Using this class of sensors, critical analytical information can be obtained by anyone, anywhere and at any time, without the need for recalibration and worrying about contamination.
Have a White’s MXT PRO metal detector for sale or for trade.
$800 for sale, or willing to trade for a shotgun plus some cash depending on what model you have.
Comes with everything you need to start:
White's MXT PRO metal detector
Extra battery
Charger
White's bullseye pin pointer
Garrett...
Coinmaster TR Metal Detector.
I've coated the Search Coil with PlastiDip for durability.
Uses one 9V battery.
Cash sale or trade for 9mm 124 gr ammo in Tacoma area
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It's an oldie but a goody, works great.
Coinmaster TR Metal Detector.
I've coated the Search Coil with PlastiDip for durability.
Uses one 9V battery.
Cash sale in Tacoma area
Text to contact
The venerable White’s MXT in excellent condition. You’ll likely never see a complete original package like this, in this condition, ever again.
Included in the sale:
White’s MXT with Eclipse 950 coil and coil cover.
White’s Eclipse 6”x10” DD Coil, with coil cover and White’s shaft...
Garrett 1140680 AT Gold Metal Detector and Pro-Pointer AT 1140900
$560 for both. The price is firm. Not splitting them up.
Pickup is in Ridgefield, WA
I have the price over two hundred dollars less than you can find on Amazon.
Both are practically brand new and work great. Tested them a few...