Pointer Type Electroscope Electrometer, Electrostatic Potential Difference Measuring Instrument, Conductor Charge & Insulation Detection Physics Lab Equipment

Pointer ElectroscopeProfessional electrostatic experimental instrument for checking live state of conductors and identifying whether objects carry static chargeWorking PrincipleWhen measuring the potential difference between two charged bodies, connect the electroscope metal casing to one charged body,connect the built-in metal rod to another charged body, and ground the casing as standard operation.Take the earth potential as zero reference, the electroscope can accurately measure and distinguish the potential of each charged body.When testing the electrification state of the object, use the electroscope ball to induce the tested object firstly,then transfer the obtained charge to the electroscope metal rod; it is also feasible to make direct contact between metal rod and tested object.Simple and practical method to test object insulation:Ground one point of the tested object by contact, then connect another point with the metal rod of charged electroscope.Observe the pointer state; if the pointer quickly returns to zero, the tested object is a conductor, otherwise it is an insulator.Product name: pointer electroscopeProduct size: 102*70*335mm/4.01*2.75*13.18 inStandard desktop experimental size, compact and reasonable structure, saves laboratory space, convenient for placement and daily teaching demonstrationProduct weight: 650gModerate overall weight, stable vertical placement, easy to move and carry for classroom teaching and laboratory researchMaterial: Durable plastic base, precision metal cylinder, high-transparent frosted glass shellGood insulation, sturdy structure, wear-resistant and long service life for repeated electrostatic experimentsPurpose: This instrument is widely used in physical electrostatic experiments.It can measure the potential difference between two charged objects, detect charged status of items,judge positive and negative charge property, test object insulation and complete inductive electrification experimental tests.

• This professional pointer electroscope is specially designed for physical electrostatic experiments. It can measure potential difference between charged objects, detect whether an object is charged, distinguish positive and negative charge, test insulation performance and complete inductive electrification tests.
• Supports accurate potential difference detection: Connect the metal shell and metal rod to two charged bodies separately and ground the shell. Taking earth potential as zero reference, it can precisely measure and compare the potential value of each charged object.
• Simple and flexible charge checking method: Use the electroscope ball to induce the tested object and transfer charge to the metal rod, or directly contact the metal rod with the object to quickly judge the charged state through pointer deflection.
• Easy insulation identification: Ground one end of the object and connect the other end to the charged electroscope rod. The pointer returning to zero quickly means the item is a conductor; otherwise, it is an insulator, with clear and reliable experimental phenomenon.
• Simple maintenance ensures stable performance: Wipe the insulating sleeve with a soft dry cloth before use to remove dust and moisture which may weaken insulation. Dry the instrument properly if affected by damp to keep long-term detection accuracy.