Other types of strain gauges are based on semiconductor materials, like silicon.
Ultrasonic river gauging is based on the continuous measurement of stream velocity at chosen depths by recording the difference in time for sound pulses sent obliquely across the river in opposite direction.
Selection of gauging sites was based on historical gauging sites, and considering the possible changes in rivers gain loss relations with aquifers.
The unemployment rate, a source of some reassurance, is a flawed gauge: It is based on a survey of households and includes self-employed people, but it does not count people who have given up looking for work.
The strain gauge signal conditioning is based on quarter bridge method with high precision resistors which is excited by an AC source.
On this basis, they are increasingly nervous about the inflation outlook in the euro area and especially in Britain (see right-hand chart, above).One problem with such gauges is that they are based on nominal bond yields, which include a risk premium for inflation's volatility.
A taper gauge was developed based on the mean circumference of adult index and middle fingers (9.89 ± 0.21 cm), and this was used as a spacer at the nasal planum or beside the mandible when tightening the noseband.
Some customers may already have lost service, he said, but it was difficult to gauge that because SunRocket, which is based in Vienna, Va., had laid off its employees last Friday and this Monday.
The index, one of the most widely watched gauges for Europe's economy, is based on a survey of about 7,000 companies.
The gauge of adolescent attitudes and expectations is based on a telephone survey of 1,014 13-to-18-year-olds conducted in May by Peter Hart Research.
