Measurement Using Dc-Ac Conversion TRIZ Cases

A portable proving unit generates a specified AC voltage on an insulated wire to verify non-contact measurement systems.

A magnetically coupled DC current sensor uses a dynamic voltage supply to modulate drive amplitude and frequency for accurate secondary side measurements.

Adjusting the sensor frequency dynamically resolves the trade-off between temporal resolution and interference susceptibility while reducing power consumption.

A portable proving unit generates verified AC or DC voltage outputs to test measurement devices.

A segmented Rogowski current sensor with a retainer member captures the output stud of a pad-mount transformer.

Magnetic core sensing stage detects residual currents in low voltage lines, replacing complex electronics to reduce power consumption and manufacturing cost.

Integrates a connector socket with shunt circuitry to eliminate exposed terminals and reduce installation labor.

Bayonet coupling locks syringes to prevent misalignment and fluid spillage while eliminating pressure jacket requirements.

A switching power supply counter tracks switch enable events to measure energy consumption.

Adjacent resistor groups sharing a common voltage eliminate insulation spacing, reducing circuit board footprint while maintaining measurement precision.

A closed-loop fluxgate current sensor measures primary current using a saturable magnetic core and secondary coil with alternating excitation.