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Measurement Range
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Range of distance measurement, or maximum distance measured.
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Search Logic:
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User may specify either, both, or neither of the "At Least" and "No More Than" values. Products returned as matches will meet all specified criteria.
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Maximum Range:
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The absolute maximum range over which the device can provide sensible readings. Example: LVDTs have a linear range over which the output faithfully and linearly (within reason) tracks the input. They can, however, be used over a larger range, but you would have to calibrate one to use it over this range.
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Search Logic:
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All matching products will have a value greater than or equal to the specified value.
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Accuracy:
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The accuracy you require of the device.
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Search Logic:
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All matching products will have a value less than or equal to the specified value.
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Velocity Output?
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Search Logic:
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"Required" and "Must Not Have" criteria limit returned
matches as specified. Products with optional attributes
will be returned for either choice.
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Electrical Output
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The type of electrical signal that will be produced.
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Your choices are...
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Analog Current (4-20mA, etc)
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Often called a transmitter. A current is imposed on the output circuit proportional to the measurement. Feedback is used to provide the appropriate current regardless of line noise, impedance, etc. Useful when sending signals long distances.
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Analog Voltage
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Output voltage is a simple (usually linear) function of the measurement.
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Frequency / Modulated Frequency
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The output signal is encoded via amplitude modulation (AM), frequency modulation (FM), or some other modulation scheme, but the signal is still analog in nature.
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Serial
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A standard digital output protocol (serial) such as RS232, etc.
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Parallel
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A standard digital output protocol (parallel) such as IEEE488, etc.
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Switch / Alarm
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An "output" of a change in state of switches or alarms
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Other
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Any digital output other than the standard serial or parallel signals. Simple TTL logic signals are an example.
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Search Logic:
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All products with ANY of the selected attributes will be returned as matches. Leaving all boxes unchecked will not limit the search criteria for this question; products with all attribute options will be returned as matches.
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Your choices are...
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Potentiometer
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Optical Encoder
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Search Logic:
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All products with ANY of the selected attributes will be returned as matches. Leaving all boxes unchecked will not limit the search criteria for this question; products with all attribute options will be returned as matches.
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Category of Device
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You can think of products as belonging to general categories based on what they are designed to do and what you have to do to use them. The 'category' criteria attempts to distinguish 'unpacked' sensors that might be used as part of a larger sensor from, say, a gauge which can be read just by looking at it.
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Your choices are...
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Sensor Element / Chip
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Denotes a "raw" device such as a thermocouple, or one with no packaging.
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Sensor / Transducer
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A more complex device with packaging and/or signal conditioning that is powered and provides an output such as dc volts, 4-20mA, etc. (ex: a pressure sensor with 4-20mA output).
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Instrument / Meter
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A (usually) self-contained unit that provides an output (typically a display) locally at or near the device. Usually also includes signal processing/conditioning. Example: a hand-held volt meter.
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Gauge / Indicator
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A device which has a (usually analog) display and no electronic output. Example: a pressure gauge.
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Recorder / Totalizer
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Search Logic:
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All products with ANY of the selected attributes will be returned as matches. Leaving all boxes unchecked will not limit the search criteria for this question; products with all attribute options will be returned as matches.
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Operating Temperature:
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The temperature range over which the device must operate.
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Search Logic:
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User may specify either, both, or neither of the limits in a "From - To" range; when both are specified, matching products will cover entire range. Products returned as matches will meet all specified criteria.
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Maximum Shock:
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The maximum shock you require the device to survive. Items that are 'typical' may not explicitly give their Max Shock value, so it is a good idea tousle this only when working with extremes.
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Search Logic:
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All matching products will have a value greater than or equal to the specified value.
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Maximum Vibration:
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The maximum vibration you require the device to survive. Items that are 'typical' may not explicitly give their Max Vibration value, so it is a good idea tousle this only when working with extremes.
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Search Logic:
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All matching products will have a value greater than or equal to the specified value.
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