Help with Torque Sensors specifications:
Torque Measurement
Back to Top
|
| ||
| Maximum Torque | The maximum torque you want to measure. Torque is defined as the moment of a force, a measure of its tendency to produce torsion and rotation about an axis. | ||
| Search Logic: | 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. | ||
| |||
| Accuracy | The accuracy you require of the device. | ||
| Search Logic: | All matching products will have a value less than or equal to the specified value. | ||
| |||
| Temperature Compensation | Prevents measurement error due to temperature increases or decreases. | ||
| Search Logic: | "Required" and "Must Not Have" criteria limit returned matches as specified. Products with optional attributes will be returned for either choice. | ||
| |||
Sensor Technology
Back to Top
|
|
| ||
| Torque Sensor Type | |||
| Your choices are... | |||
| Reaction | Reaction torque sensors measure static and dynamic torque with a stationary or non-rotating transducer. | ||
| Rotary | Rotary torque sensors use rotary transducers to measure torque. | ||
| Search Logic: | 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. | ||
| |||
| Technology | |||
| Your choices are... | |||
| Magnetoelastic | A magnetoelastic torque sensor detects changes in permeability by measuring changes in its own magnetic field. | ||
| Piezoelectric | A piezoelectric material is compressed and generates a charge, which is measured by a charge amplifier. | ||
| Strain Gauge | To measure torque, strain gage elements usually are mounted in pairs on the shaft, one gauge measuring the increase in length (in the direction in which the surface is under tension), the other measuring the decrease in length in the other direction. | ||
| Search Logic: | 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. | ||
| |||
| Category of Device | 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. | ||
| Your choices are... | |||
| Sensor Element / Chip | Denotes a sensor element with no signal conditioning or packaging within a larger unit. | ||
| Sensor / Transducer | A more complex device with packaging and/or signal conditioning that is powered and provides an output such as analog voltage or current loop. | ||
| Instrument / Meter | A self-contained unit that includes a display and possibly additional electrical or electronic outputs; often includes amplifier and/or signal conditioning. | ||
| Gauge / Indicator | A device that has an analog or digital display; typically does not include a separate electronic output. | ||
| Recorder / Totalizer | A device that records several data points or is used to totalize measurements in some fashion. It may also be capable of sophisticated functions such as statistical analysis. | ||
| Search Logic: | 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. | ||
| |||
Electrical Output
Back to Top
|
|
| ||
| Your choices are... | |||
| Analog Voltage | Any analog voltage output. Output voltage is a simple (usually linear) function of the measurement or a voltage ratio (e.g. mV/V). | ||
| Analog Current | 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 over long distances. | ||
| Analog / Modulated Frequency | A format that uses continuous physical variables such as voltage amplitude or frequency variations to transmit information. | ||
| Switch / Alarm | An output of a change in state of switches or alarms. | ||
| Serial | A standard digital output protocol (serial) such as RS232, RS422, RS485, etc. | ||
| Parallel | A standard digital output protocol (parallel) such as IEEE488, Centronics port, printer port, etc. | ||
| Other | Any digital output other than the standard serial or parallel signals. Simple TTL logic signals are an example. | ||
| Search Logic: | 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. | ||
| |||
Environment
Back to Top
|
|
| ||
| Operating Temperature | The temperature range over which the device must operate. | ||
| Search Logic: | 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. | ||
| |||
| Maximum Shock | The maximum shock you require the device to survive. Items that are 'typical' may not explicitly give their maximum shock value, so it is a good idea to use this only when working with extremes. | ||
| Search Logic: | All matching products will have a value greater than or equal to the specified value. | ||
| |||
| Maximum Vibration | The maximum vibration you require the device to survive. Items that are 'typical' may not explicitly give their maximum vibration value, so it is a good idea to use this only when working with extremes. | ||
| Search Logic: | All matching products will have a value greater than or equal to the specified value. | ||
| |||
