Conventional-type clamp/open-jaw meter impossible to measure on multi-core cable

For the last 70 years, bulky and heavy clamp or open-jaw meters have been used to measure current on wires that must be separated, i.e., on live or neutral wires or between live wires.

The existing conventional type of clamp meter with laminated iron core (3) wound around hundreds of turns of enameled wires (4) forms a secondary pickup magnetic current, which flows from one direction of the cable (1) and thus generates a small amount of millivolt supply to the electronic circuit of the clamp meter. The results (5) show the load current flow of a single-core wire.

Alternatively, when the clamp meter is placed on the opposite side of the return wire from the load, the current flows back to the supply (2) and generates a counterclockwise magnetic field (2b).

Whatever the measuring method used, we have to split and measure on a single-core wire only, not on a cable with two or more cores twisted together, as shown in Figure 2.

Unlike the popular conventional-type clamp/open-jaw meter, a revolutionary new generation of multifunction multi-core NCCV meters invented by MEET offers a unique solution to measure various data and collect information on single- or multi-core cables without separating the wires or restricting at the open side only (Figure 3). The uniquely designed, fully insulated miniature multi-sensor can measure in a very tight space.

In Figure 4, the user can simply place the NCCV sensor probe with a single-/multi-core wire/cable and turn around (b) or scan on (a) to measure and collect information in seconds, such as:

AC current
AC voltage
Current flow through live or neutral wires
Location of live and neutral wires

Moreover, through a smartphone/tablet, the data can be recorded in real time. The user can then snap a picture of the data and email it to headquarters, WhatsApp, WeChat, etc.

Besides measuring, one of the most unique features is non-contact voltage and current detection. Detecting AC signal strength indicated by numerical display enables pinpointing the exact source/results inside the PVC conduit, switch, socket, etc., as well as locating high-current AC flows buried in walls, ceilings or the ground.

NCCV Meter measures Current, Voltage on 1/2/3 multi-core cable MS-W26N Using application with voice
https://www.youtube.com/watch?v=XQhZCKpXACg

For last 70 years bulky and heavy clamp or open jaw meter have been used to measure current on wires that must be separated i.e. on Live or Neutral wires or between Live wires. However, measuring on two / three / four / five core cables (except on armored / shielded cables) as well as on any length of cable has been impossible !

Unlike popular conventional type clamp / open jaw meter, a revolutionary new generation of Multifunction multi-core Non-Contact Meter (NCCV Meter) invented by MEET, offers unique solution to measure various data and collect information on single or multi-core cables without separating the wires or restricting on at open side only.

User can simply place the ‘NCCV Sensor’ probe in-touch with single / multi-core wire / cable and turn around or scan on to measure and collect information just in seconds, such as:

AC / current
Auto AC / DC current (MS-W26ND)
AC / Peak voltage (MS-W26ND)
Identify current flow through Live or Neutral wire
Locate Live and Neutral wires

One of the most interesting advance feature integrated with Bluetooth wireless connectivity is its ability for dual mode communication to transfer/share measured data/information between meter and Smartphone/Tablet such as:

Electric Power
Impedance / Resistance
Inrush current
Duty cycle
Frequency
Power consumption calculation
Horsepower
Calculation of CO2 emissions etc.

https://m.youtube.com/shorts/UzvAaeE_Gog?si=5-4_JsB7VltAZ4TF&fbclid=IwZXh0bgNhZW0CMTEAAR0aVHMjc-c_D3-gGFjpOFHr9ZYTc0JNsaObgBQ-TXOOHtVVuKhLISsfCng_aem_1O97W-h_F0x8F6xqrDS1fg

This is my attempt at designing a basic USB powered multimeter. Included modes are VDC, Ohms, and (Capacitance).