The Experimental Field Generator is a formidable Field Boss introduced in Genshin Impact with Version 4.1, located in the Fontaine Research Institute of Kinetic Energy Engineering Region. Here's a detailed overview.
Image via HoYoverse.
The Basics
•Appearance and Lore: This boss appears as a large, mechanical contraption, resembling the Clockwork Meka in design but with unique features suited for experimental kinetic energy manipulation. Its lore suggests it's a creation meant to test or perhaps harness the principles of gravity and energy within the world of Teyvat.
•Location: You can find the Experimental Field Generator by traveling northeast of the Statue of Seven in the Liffey Region, heading towards the Teleport Waypoint in the Assembly Hall, then south to a circular building where the boss resides.
Combat Mechanics
Phases
•Normal State: It begins in a standard combat mode where players can attack directly.
•Enhanced State (Gravity Reduction Field): After taking significant damage, it activates a field that reduces gravity, allowing players to jump higher. This state introduces new attack patterns and requires players to adapt, often by using plunging attacks for both mobility and damage.
Attacks
•Gravitational Ripple: Emits waves that can push players around or deal damage if not dodged or shielded against.
•Circling Laser: Expands and contracts on the ground, requiring quick movements to avoid.
•Rock Shrapnel: Spawns random rock projectiles across the field, which can be dodged or destroyed.
Weaknesses
•Although it has high Geo resistance (70%), its resistance to other elements like Electro or Hydro is much lower at around 10%. This makes it vulnerable to reactions like Electro-Charged or even Overload if players
•Physical Damage: Given its mechanical nature, characters dealing physical damage like Eula or Razor might be particularly effective.
Strategy 
•Elemental Reactions: Utilize characters who can apply Electro or Hydro to exploit its lower elemental resistances. Characters like Fischl or Xingqiu can be very useful.
•Mobility: The boss's gravity field provides a unique combat environment where jumping and plunging attacks can be strategically used. Characters with good aerial control like Xiao or Jean can take advantage of this.
Team Composition
•DPS: Characters like Keqing for Electro or Yoimiya for Pyro can deal substantial damage while moving around.
•Supports: Characters like Beidou for Electro resonance or Xingqiu for Hydro application.
•Healers: Characters like Bennett for healing and attack buffs or Diona for Cryo resonance and shielding.
•Defense: Given its Geo attacks, a strong shield from characters like Zhongli could be invaluable for mitigating damage.
Rewards
•Defeating the Experimental Field Generator grants:
•Primogems
•Hero's Wit
•Mystic Enhancement Ore
•Trial of the Field Generator (Ascension material for Wriothesley and potentially other characters associated with Fontaine's themes).
Tips: 
•Adapting to Gravity Changes: Be ready to adjust your combat style when the gravity field activates, focusing on aerial combat.
•Interrupting: Like many bosses, interrupting its special moves or phases can yield bonus damage or prevent it from executing more complex attacks.
•Team Rotation: Efficiently rotating through your team members to manage healing, elemental reactions, and high damage outputs is crucial.
•Use the Environment: The boss arena might offer strategic points for dodging or positioning, especially useful during its circling laser attack.
The Experimental Field Generator stands out for its innovative mechanics, challenging players not only with combat but also with adapting to environmental changes, making it a unique and engaging addition to the roster of Field Bosses in Genshin Impact.
